Great video. I have a fleet of Honda bikes and motors and the most common issue is the idle jet blocked. Your tip on the tank filter is a gem. I'll change all my tank filters now. ! Many thanks.
Thank you for this great video. Your step by step video made it really easy to fix a lemon of a used generator purchase. After watching your video, I was able to get my generator running like a champ. On behalf of my wife and I, THANK YOU!!!
WOW, What a nice surprise. I figured here we go, another goof drilling holes in the panels, air cleaner box or ripping the Charcoal Canister out. You are a great mechanic that knows what he's doing and a great teacher for sure. I have a Predator 3500 and can't believe all the bad advice out there. It's unreal and Harbor Freight along with those depending on their generator to keep warm or run their life support equipment pay the price. I did know about the pilot jet but still learned a couple of good points. Great job and am now Subscribed.
We have used the ruclips.net/user/postUgkxOTeIs0vv4_9B5hsmnLsk9r930uDQLu_Y for probably 30 hours with our camper and it’s been great! The noise level is really only noticeable when running the AC and other appliances like the microwave, hair dryer, or coffee pot. It’s not huge like other ones and it has wheels so even at 90lbs, I can move it!
Glad I watched this video before tearing into my Craftsman (Generac) 3000i. Was absolutely dreading having to "gut it like a fish" in order to get the carb off and clean the main jet and emulsion tube just as I have done on SO many motorcycle carbs. Remembered seeing the plastic idle screw on mine and wondered if I had the same pilot jet underneath. Sure enough! Had it out in a few minutes, and, sure enough IT WAS TOTALLY CLOGGED! Couple minutes later I had it back together, fired it up and runs like new! A BIG thank-you for saving me so much time and needless effort!!
Thanks Brother! Well done - especially where you demonstrated a test to assess flow on the fuel filter. I am going to go fix mine right now. Previously - main jet clogged. Fixed that, got function. Now the idle lopes a bit and it does not perform great under full load. ... Going to clean the pin-hole then check the fuel filter. Living the dream.
Thanks so much for this great video. I was about to order separate parts, but got the petcock assembly instead. Pretty sure I can fix my surging issues now when I get the parts. 👏👏👏
TEPCO CYCLE REPAIR, GREAT VIDEO! I RECENTLY RAN TANK LOW, TOOK MY SMALL SHOP VAC TOP AND SUCKED OUT REMAINING FUEL, TANK DEBRIS AND MINOR RUST. AFTER THAT I SPRAYED BRAKE CLEAN ON PETCOCK FILTER, THEN PUT SHOP VAC TIP RIGHT OVER TO PULL CLEANER OUT. THAT HELPED ALOT! THEN I RAN ENGINE WITH FILTER OFF, AND DID SHORT BURST OF BRAKE CLEAN WITH ENGINE RUNNING, AFTER ENGINE STUMBLE THEN RPM RECOVERY I SHORT BURST AGAIN, I REPEATED THE PROCESS FOR A FEW MINUTES THE SURGE STOPPED. IT RAN GREAT AND SURGED STOPPED WHILE I WAS IN THERE I PUT IN A NEW SPARK PLUG AND OEM PAPER AIR FILTER, RE-OILED FOAM FILTER AS WELL PURRS LIKE A KITTEN! IM NOT SURE HOW OLD THIS HONDA EU300IS BUT I THINK IT IS AN EARLY VERISON DUE TO NOT HAVING THE CHARCOAL FUEL FUME FILTER THAT NEWER ONES HAVE (ACCORDING TO THE INTERNET. IT RUNS LIKE A TOP AND THESE ARE GREAT GENENRATORS! GREAT VIDEO ONCE AGAIN
We had a surge on our generac generator. We took the carb apart and cleaned it no change. Then we watched your video and we cleaned the pilot jet and it completely fixed the surge!!! Thanks for a great video!!
I took my 2000 EUi carb off to clean it, it needed it, the fuel bowl was all gunked up. I ultrasonically cleaned it and put it back together. It starts now but surges. Watching this video gave me a few tips on what to additionally check. Once I check those things and fix any problems I see I think it will be fixed.
I was having surging issues with my rototiller. a Powermate. I took the carb apart and cleaned it, drained the gas tank, etc. Nothing worked until I pulled the pilot jet. I didn't have a pin or needle small enough to pass through, but poking it must've cleaned it out. I put it back together and it runs great. Thanks for the tip!!
Great maintenance video, allow me to also point out the little Port for the idle jet that is located just below it and the 3 fine holes on the inside next the tip of the air screw that also gets blocked sometimes 😎
Great video! Another good thing to do is clean the main jet and emulsion tube. With bowl removed use a small slot screwdriver up the tube, unscrew, and jet with emulsion ntube will fall out. Clean and poke all holes with a wire. Also use ethanol fuel treatment and try to not use fuel with ethanol especially if not running it a lot.
Thanks for the info, I rebuild and cleaned my carburetor and still had a bit of surge. I ordered the kit you mentioned and will be installing it tomorrow. Thanks again 😀👍
Fantastic video! Thank you! I just picked up an EU6500 with only 200 hours on it, and it ran great when I bought it last week. I don't know what changed, but when running it today, it starts and idles fine, with and without eco throttle on/off. It also ran well when running 2 space heaters. But running 1 space heater, with or without eco throttle, it was surging. It seems like no load is fine. 1/2 load is fine. But anything in the middle and it surges. I dropped the sediment bowl and it was perfect. Not a spec in it. I removed the carb and the bowl had some black specs in it. No varnish, just some fine specs of dirt. The main jet was frozen in place, to the point that I was starting to round-off the flat-head notch on it. So I left it in the carb, sprayed it with carb clean in and out, and reinstalled. The surging seemed to get a little better, but it's still there and comes and goes. I didn't try the pilot jet and will try that next. I really don't want to have to cut the tab on the air/fuel ratio screw, but I guess that may be next as well. The EU6500 has a very fancy carb with the dual motors on the top. I really don't want to mess with them, or a 100% teardown of the carb. I'll try the pilot jet next.... thanks for the great video!
2:35 THANKYOU sir ! i got a generator, Honda EG3500 x. GXC 240 honda motor, surges. I redone the carb, thoroughly. Now, with this education, will clean that pilot jet. ...thanks again, from Alberta canada. oh, got a 7 hp Xstream 3100 gen, surges too. Both were sitting for years, in a barn. Will clear that carbs' jet, too. SHALOM, Mr cycle repair.
Just put a new carb on got surge and doesn't want to run with out the choke it was a freebie that sat with old feul for a long time would bet my problem is the in tank feul filter because i tried to just drain the tank through it and barely got fuel so i just pulled the pitcock and drained it but dint clean the filter before reinstalling it so thanks for making me think about it .lol....
Mine starts extremely hard in the cold weather. After that, like a Swiss watch. Changed carburetor with a genuine Honda part. Replaced air filter, cleaned spart arrester.
Another potential cause is an air leak between the carb and the engine. I had this happen on a new Generac PM2200i. When I looked at the intake gasket, it was obvious that part of it had not been compressed. I applied a thin layer of Permatex gasket maker to the gasket, re-installed the carb and torqued it down and it runs great now.
I have had an issue with constant surging. I replced the carb and it still surges real bad. Now I think your suggestion may be something I should look into as I can'f figure out what it could be. The plastic jet is clean and open.
Fantastic! Can you show a detail of the throttle motor connection? I took mine apart and notice there is play between the stepper motor and the plastic plate on the throttle shaft. Seems like that would allow surging. My throttle does not snap closed..should it? Perhaps I'm missing a spring.
This may have been mentioned before but if you own a Honda 6500eu you must have your battery door on or it will surge. I was chasing the surge until I put the door on and instantly started to run correctly. The second cause would be as this video is doing.
Hi, our generator just started surging like crazy. Randomly, barely anything drawing from it. We’re in wildfire country, they did a power shut off for fire safety . So out of the blue, we needed the generator. My other half isn’t here right now, I’m no mechanic. I’m kind of freaking out with the surging, it’s 10 pm and the power is still shut off. My hubby can’t get here until Thursday, the power is supposed to be turned back on tomorrow night by 7pm 🙏. So I’m going to show him your video, hope that is the only reason it’s surging. I’m just praying it stays on all night, daytime not so bad. But night time not so good, especially when you live in the boonies. I doubt you’ll read this tonight, so all I can do is ride it out. I just hope nothing bad happens overnight, or hurts the engine in any way 🙏. Thank you for making this video, I’ll be very curious to see if it fixes the surging. 😊
If it has a eco mode, turn it off see if that helps for now. You may have some water in the carb as well that might get pulled through and clear up. Make sure there is fresh gas in it and dump a bottle of sea foam in it until he gets back. Good luck and hope your power comes back on soon.
Tepco Cycle Repair , has fresh gas in it. Where would I get sea foam ? Never heard of it, something else I’m noticing this morning. It has not surged in the last hour at all, other issue. My son lives in a travel trailer which he plugs into and outlet in our pumphouse to get power too, he says he only uses it for light. But now I wonder because it has not done it yet today, and I kn he’s sleeping. So could the trailer cause it ? I don’t kn if it’s just lights being used, sure is odd how it’s not doing it now. I’m making my other half take it in for a service either way, I don’t need it to screw up when I have 3 ft of snow outside. I have no way to get heat, I kn my heater makes it surge. It’s central forced air heater, I wish I had a wood stove for heat. But that’s not an option right now. Anyway sorry for babbling on, thanks for your help. And again, where would I get sea foam just so I kn ? Thanks 😊🌸
@@wshazbot62 You can get the seafoam from any auto parts store, but with that info it doesn't sound like You need it. You may be maxing out the generator especially if you're running a heat pump on it I'm surprised it's able to do that. I'm guessing it's the same one I'm using in the video?
I have a Predator 3500 and have had it for about 4 plus years so far. I am having a problem right now with mine. When I go to turn it off it keeps wanting to run and chug, and like it's dying but just won't shut off until all the gas in the carb runs out. Any advice?
Surging = Fuel Starvation, especially with less than half tank of fuel. A generator runs at high speeds all the time requiring the highest of volume of fuel in the line at all times. Generators are designed to be low profile and an inherent flaw is that the fuel tank is (TOO LOW) just slightly above the carb fuel inlet for gravity feed through a hose. At high speeds and especially with little fuel in the tank causes a weak flow to the fuel inlet causing starvation/surging. SOLUTION: I have a Honda GX-390 and have discovered that by raising the entire fuel tank by 8" gave me MUCH better fuel flow down to the carb and the surging went away even with almost no fuel left in the tank. You can definitely see the difference (before and after) with a see-thru clear fuel filter which should always be at least 1/2 full during operation on a high speed motor/generator. Another mistake I made was storing Ethanol fuel for more than one season in my shed. The stuff goes bad and causes havoc on small engines. Periodically check the color of the stored fuel in a glass jar. It should be clear. If it is golden/urine colored, DONT USE IT in a small engine.. Car engines don't seem to have a problem with the aged fuel. I had about 20 gallons of yellow colored fuel and added a few gallons at a time to an almost full tank of gas in my car and it burned it with no problem.
I have a different style Honda carb. It is factory sealed, but still has a screw opening to the idle jet area. The carb I have is surging, while engine is running. I put carb on carb cleaner for over 12 hours to bot soften and loosen up any buildup inside the vents and center tube. I then both inserted a small wire down through the idle jet opening, and the wire went the jet hole for a length of over a inch, very freely. I put pressurized carb cleaner through the screw opening, and it comes ot inside the carb's venture area ( so that small vent is free and clear of any dirt blockage. Main fuel flow tube is like new, and clean (even all of it's small holes. Main jet is clean as a whistle, and jet hole is wide open. Now I have cleaned many a carb over the years, and never had trouble like this carb has. I even inserted a stiff nylon brush into the main fuel tube, right up to where it comes out into the venture. Everything is clean as anyone can get this carb. I have repeated this process 4 times now, and still I have surging, while engine is running. It seems as if the idle hole in the main fuel flow tube in the center of the carb is plugged, because the idle section doesn't seem to be getting any fuel through it, and this is causing the engine to surge while running. Is there any way I can open-up that vent hole in the main center tube to allow fuel to pass through once again? It's either that, or I need to buy a new carb. The issue seems to be, half way up the inside of the main center tube. I ordered a set of brass fiber bushes, that will fit into that main tube to see if I can free up that area, and allow the fuel to flow to the idle area. Any suggestions on how I can get the fuel to the idle jet, and beyond on this carb?
... I might add.... Each time I opened and cleaned the carb (which was 4 times), the carb sat in Gunk carb cleaner for 12 hours each. Still there is blockage in the idle section causing surging. It's just now getting fuel in that area.
The problem with these carbs is you can't adjust the idle mixture screw. If you could the surging would be easily fixed. My suggestion to you is to get a new pilot jet and replace it. Or get a new carb that you can adjust the mixture screw.
@@TepcoCycleRepair ... Maybe it's time to replace the carb. I'm thinking maybe some grit has got caught, or wedged in that hole, and doesn't want to be removed, thus stopping the flow of needed fuel for idle section to work properly. It's worth a try in trying to save this carb, but the more I try, the less it seems it will come unplugged. Out of the many carbs I have cleaned over the years, this is my fist, that is plugged solid within the main center tube section. I did an older 4 hp snow-blower engine as well today, that also needed a good carb cleaning. That turned out just fine. Engine runs like a dream again. It's best to do some asking, and learn something new, but in this case, I think a new carb is the remedy.
@@TepcoCycleRepair ... I think I am wasting my time in trying to save this carb. I think a new carb should be put on this mower.... Thanks loads for your opinion, and help. I was just looking to see if there was something I could do to get it working again, that I didn't know about (and I have cleaned many a carb over the years). Doesn't hurt to ask , that's for sure. Again Thank You.
I just bought an EU2000I and it was not wanting to take a full load unless the choke was on. I cleaned the carb twice including the top jet and it will only run correctly with the choke half way on. It idles fine but is way lean at full throttle. I was able to get my money back but what is going on. Do these thing have a fuel pump of some sort. Float bowl appears to be full of fuel. It will run all day with the choke half on but it should run without it.
It's your pilot jet. Did you use a wire or something to push through it? Are the o-rings ok on the jet? Your description is a classic case of a clogged pilot jet.
Cleaned out the pilot jet as well as Sonic cleaning all carb parts. Still surging, though not as bad. As far as the mixture screw? What's the advantage of breaking off the tab to make it turn a full turn as opposed to just ¼ turn as it's intended ..... ESPECIALLY considering some genset carbs have no mixture screw adjustment at all - just a plug. I have 2 carbs for our Honda eu6500is. One came plugged (not adjustable) & the other is ¼ turn adjustable. But since some are obviously not intended to be adjusted, how crucial could cleaning out that port really be. I could remove the permanent plug if it were to really help.
Tepco Cycle Repair - our surge happens when eco is off - or a load of 3.5Kw's or greater demand is required while in eco mode. We have more maintenance & diagnostic hours of use, than actual generator need .... 37hrs vs 20 - total of 57hrs.
I had to take top fuel indicator off to fix float inside but when I screwed down indicator back on it seems to leak when moving around with full tank. Any recommendations on stopping gas from coming out around edges of the indicator?
If the rubber seal is dry or ripped, you can use something like a honda bond, or motoseal from permatex. Take it back out, clean and dry it good and apply as per the directions.
Very good video and nice explanation. I have predator 4000 and my problem is that it starts and runs fine on choke but when I slide it to run it shuts off. On choke I can run some tools that don't put too much load on it but If I put heavier load on it it will shut off too. Feels like fuel problem, can you help?
I have an unrelated question to this video. I just replaced the gas tank on my generator. When I filled it full of gas, all of the gas drained out of the upper carb drain hose. Do you know why this would be? I don't see an adjustment screw.
Sounds like it's overflowing and filling the carburetor with fuel so check your float needle and make sure it's cutting the fuel off when the bowl is full.
I have brand new honda 2200i. Been recalled, ran rough in economy mode before it was in shop,now slightly worse. Runs smoothly at half choke however. Hard to imagine anything clogged, can you suggest an adjustment? Thanks for the great video!
If it was repaired due to a recall, I would bring it back..if it needs choke to run, it's lean on the pilot, so pilot is clogged or it's sucking air somewhere.
@@TepcoCycleRepair Thanks for your response. I was hoping l wouldn't have to take it back, but its still under warranty. At least I'll sound like I know what's going on! Thanks again, great video!
Not necessarily, I just think the quality of the components are better. Metals, electrics etc. I've worked on a bunch of all brands and metal quality differs greatly and because of that things wear quicker, corrode faster and rubbers dry out faster in the less expensive units.
Great video. I have about 6700 hours on my EU3000IS (4 years old, CARB model) . About 1200 hours ago, it started running a little rough when ECO mode was off. But, during the winter, I never run the AC, so it stayed on ECO. About 300 hours ago, it really started getting rough. I previously cleaned the carburetor, but decided it may just be getting old. Purchased a new one, adjusted the valves, oil, air filter, spark arrestor. It seems to run a little better when I adjust the idle screw at one speed, but as soon as the load changes, it gets rough again. Now even at idle in ECO, it's running rough. Surges a lot. Anyways, I guess I should try the tank filter. Do you just unscrew from under the tank, or does it just pull out? I don't want to break it... Thanks again. Do you have a patreon or PayPal? I'm curious if it's just at the end of its life and the internals need to be replaced..
I have this SAME problem. I live off grid and eco mode would be nice to use because it saves so much gas. But it’s impossible to adjust because of the load changes.
Get it adjusted in eco mode with no load. It should be fine everywhere else in the rpm range. Always start with a good carb clean and valve lash check if you're having issues.
@@TepcoCycleRepair I dont think eco mode will work with my new inverter. When my batteries enter absorb charging mode it requires a heavier load. So the eco mode lags a little to long before it kicks on. Youll hear it rev up, but by that point my inverter already stopped the charging because it couldnt get the power fast enough. Then the inverter will stop the charging cycle, which in-turn unloads the generator. Then it restarts in bulk charging, and its a never ending cycle. maybe i could adjust the idle a little higher on the eco mode, never tried it yet. I think its just too much of a lag between calling for power, and revving up to that load.
Авто/Мото
Finally someone who checks out the whole fuel system there can be other problems besides the pilot jet
Excellent video, clear , concise, straight to the point. Zero babble. And thankfully no background guitar noise. Wish others would watch and learn
...yes, we R arrrhh
I watched a lot of videos on carburetors,fixed both of my generators,to lawnmowers and three trimmers and i just learned something new today.
Hey!! Thank you! Your video helped me a TON!! My little jet was plugged. Now my generator runs perfectly!!
Great video. I have a fleet of Honda bikes and motors and the most common issue is the idle jet blocked. Your tip on the tank filter is a gem. I'll change all my tank filters now. ! Many thanks.
Thank you for this great video. Your step by step video made it really easy to fix a lemon of a used generator purchase. After watching your video, I was able to get my generator running like a champ. On behalf of my wife and I, THANK YOU!!!
Excellent video. I wasn't aware of the in-tank filter and have ordered some. Thanks!
WOW, What a nice surprise. I figured here we go, another goof drilling holes in the panels, air cleaner box or ripping the Charcoal Canister out. You are a great mechanic that knows what he's doing and a great teacher for sure. I have a Predator 3500 and can't believe all the bad advice out there. It's unreal and Harbor Freight along with those depending on their generator to keep warm or run their life support equipment pay the price. I did know about the pilot jet but still learned a couple of good points. Great job and am now Subscribed.
excellent vid, i have a lot of honda engines and gens, def. learned some fuel issue repairs i didnt know about👍
Nice job on this one. Very informative.
Excellent presentation! Thank you! :)
We have used the ruclips.net/user/postUgkxOTeIs0vv4_9B5hsmnLsk9r930uDQLu_Y for probably 30 hours with our camper and it’s been great! The noise level is really only noticeable when running the AC and other appliances like the microwave, hair dryer, or coffee pot. It’s not huge like other ones and it has wheels so even at 90lbs, I can move it!
Glad I watched this video before tearing into my Craftsman (Generac) 3000i. Was absolutely dreading having to "gut it like a fish" in order to get the carb off and clean the main jet and emulsion tube just as I have done on SO many motorcycle carbs. Remembered seeing the plastic idle screw on mine and wondered if I had the same pilot jet underneath. Sure enough! Had it out in a few minutes, and, sure enough IT WAS TOTALLY CLOGGED! Couple minutes later I had it back together, fired it up and runs like new! A BIG thank-you for saving me so much time and needless effort!!
Awesome!! Glad I could help, thanks for watching!
Brilliant tutorial. I think it will solve my problems, but if it doesn´t, I still learned a lot. I will let you know.
Been searching youtube for 3 hours it's 2am thank you I am now going to sleep. Can't wait to wake up and try this.
Heck yeah! This should do it 👍
Thanks Brother! Well done - especially where you demonstrated a test to assess flow on the fuel filter. I am going to go fix mine right now. Previously - main jet clogged. Fixed that, got function. Now the idle lopes a bit and it does not perform great under full load. ... Going to clean the pin-hole then check the fuel filter. Living the dream.
Thank you very much
Has cost alot of time trying to figure this problem out. MERRY XMAS to you Sir.
Brilliant presentation!
Thanks so much for this great video. I was about to order separate parts, but got the petcock assembly instead. Pretty sure I can fix my surging issues now when I get the parts. 👏👏👏
TEPCO CYCLE REPAIR, GREAT VIDEO! I RECENTLY RAN TANK LOW, TOOK MY SMALL SHOP VAC TOP AND SUCKED OUT REMAINING FUEL, TANK DEBRIS AND MINOR RUST. AFTER THAT I SPRAYED BRAKE CLEAN ON PETCOCK FILTER, THEN PUT SHOP VAC TIP RIGHT OVER TO PULL CLEANER OUT.
THAT HELPED ALOT! THEN I RAN ENGINE WITH FILTER OFF, AND DID SHORT BURST OF BRAKE CLEAN WITH ENGINE RUNNING, AFTER ENGINE STUMBLE THEN RPM RECOVERY I SHORT BURST AGAIN, I REPEATED THE PROCESS FOR A FEW MINUTES THE SURGE STOPPED. IT RAN GREAT AND SURGED STOPPED
WHILE I WAS IN THERE I PUT IN A NEW SPARK PLUG AND OEM PAPER AIR FILTER, RE-OILED FOAM FILTER AS WELL
PURRS LIKE A KITTEN! IM NOT SURE HOW OLD THIS HONDA EU300IS BUT I THINK IT IS AN EARLY VERISON DUE TO NOT HAVING THE CHARCOAL FUEL FUME FILTER THAT NEWER ONES HAVE (ACCORDING TO THE INTERNET.
IT RUNS LIKE A TOP AND THESE ARE GREAT GENENRATORS!
GREAT VIDEO ONCE AGAIN
Thank you sir! Been fighting with my honda clone and this pilot hole cleaning did the trick!
Awesome, thanks for watching!
Than you sir. The fuel petcock filter is exactly the thing I did not check and doing it now.
We had a surge on our generac generator. We took the carb apart and cleaned it no change. Then we watched your video and we cleaned the pilot jet and it completely fixed the surge!!! Thanks for a great video!!
Thanks for watching!
I took my 2000 EUi carb off to clean it, it needed it, the fuel bowl was all gunked up. I ultrasonically cleaned it and put it back together. It starts now but surges. Watching this video gave me a few tips on what to additionally check. Once I check those things and fix any problems I see I think it will be fixed.
Your suggestion solved my problem in an hour. Thank you so much..!
Awesome! Thanks for watching!!
I was having surging issues with my rototiller. a Powermate. I took the carb apart and cleaned it, drained the gas tank, etc. Nothing worked until I pulled the pilot jet. I didn't have a pin or needle small enough to pass through, but poking it must've cleaned it out. I put it back together and it runs great. Thanks for the tip!!
Great maintenance video, allow me to also point out the little Port for the idle jet that is located just below it and the 3 fine holes on the inside next the tip of the air screw that also gets blocked sometimes 😎
ELITE. Thanks for the great vid!
Excellent Advice! 5 Star.
Best video on this topic I found ,excellent job explaining and showing, Thank you so much Subscribe for sure 🙂
Thanks for the 5 back from bottom. A easy adjustment fix for me.
Excellent tips. Thank you.
Great video! Another good thing to do is clean the main jet and emulsion tube. With bowl removed use a small slot screwdriver up the tube, unscrew, and jet with emulsion ntube will fall out. Clean and poke all holes with a wire. Also use ethanol fuel treatment and try to not use fuel with ethanol especially if not running it a lot.
Thanks for the info, I rebuild and cleaned my carburetor and still had a bit of surge. I ordered the kit you mentioned and will be installing it tomorrow. Thanks again 😀👍
Thank you so much for this video! Awesome!
Fantastic video! Thank you! I just picked up an EU6500 with only 200 hours on it, and it ran great when I bought it last week. I don't know what changed, but when running it today, it starts and idles fine, with and without eco throttle on/off. It also ran well when running 2 space heaters. But running 1 space heater, with or without eco throttle, it was surging. It seems like no load is fine. 1/2 load is fine. But anything in the middle and it surges. I dropped the sediment bowl and it was perfect. Not a spec in it. I removed the carb and the bowl had some black specs in it. No varnish, just some fine specs of dirt. The main jet was frozen in place, to the point that I was starting to round-off the flat-head notch on it. So I left it in the carb, sprayed it with carb clean in and out, and reinstalled.
The surging seemed to get a little better, but it's still there and comes and goes.
I didn't try the pilot jet and will try that next.
I really don't want to have to cut the tab on the air/fuel ratio screw, but I guess that may be next as well.
The EU6500 has a very fancy carb with the dual motors on the top. I really don't want to mess with them, or a 100% teardown of the carb.
I'll try the pilot jet next....
thanks for the great video!
Yeah, just try the pilot jet, don't mess with the mixture screw.
Awesome information. Thank you
Thank you so much! Cleaned the pilot and runs like a predator. Lol
Great Video!!!!! you covered all the possibilities. And you know how to use a camera.
Good job xD
I always end up adding a in line filter,if setup does not have one or those tank ones I hate & removed,lol.
Very helpful, thank you.
great info, thank you.....
Awesome vid ! Thanks!!!
Top shelf instruction for low functioning generator diy guys.
Awesome job thanks
Wow Excellent job. Thank you. 👌
Excellent video.... thanks!
2:35 THANKYOU sir ! i got a generator, Honda EG3500 x. GXC 240 honda motor, surges. I redone the carb, thoroughly. Now, with this education, will clean that pilot jet. ...thanks again, from Alberta canada. oh, got a 7 hp Xstream 3100 gen, surges too. Both were sitting for years, in a barn. Will clear that carbs' jet, too. SHALOM, Mr cycle repair.
Thank you for posting my friend, good luck getting them running smoothly.
Great tips!! Thanks
Thanks you. Very helpful.
This info is golden ....
Awesome! Thank You.
Gray video bro thank you.
Appreciate ya buddy, thanks
Adjusting the idle screw helps a lot too with a new carburator.
Thank you for the info
Just put a new carb on got surge and doesn't want to run with out the choke it was a freebie that sat with old feul for a long time would bet my problem is the in tank feul filter because i tried to just drain the tank through it and barely got fuel so i just pulled the pitcock and drained it but dint clean the filter before reinstalling it so thanks for making me think about it .lol....
Thanks for this 👍
Mine starts extremely hard in the cold weather. After that, like a Swiss watch. Changed carburetor with a genuine Honda part. Replaced air filter, cleaned spart arrester.
Check your valves and compression.
thank you !
It’s my snow blower that’s surging. Thanks 👍🇨🇦
Awesome. Thank you.
Its fine gents like you that
confirm I am an ignoramus.
THANK YOU!
Another potential cause is an air leak between the carb and the engine. I had this happen on a new Generac PM2200i. When I looked at the intake gasket, it was obvious that part of it had not been compressed. I applied a thin layer of Permatex gasket maker to the gasket, re-installed the carb and torqued it down and it runs great now.
Absolutely another possible cause.
I have had an issue with constant surging. I replced the carb and it still surges real bad. Now I think your suggestion may be something I should look into as I can'f figure out what it could be. The plastic jet is clean and open.
All Good Instructions Man! Yep!
8:40 "make sure it dumps for a good amount of time" LOLOL
Full dump..lol.
Thank you!
Excellent thanks!!!!
great video
Dont bogart that filter lol, thanks for helping with my genny
Fantastic! Can you show a detail of the throttle motor connection? I took mine apart and notice there is play between the stepper motor and the plastic plate on the throttle shaft. Seems like that would allow surging. My throttle does not snap closed..should it? Perhaps I'm missing a spring.
well done sir :)
Great Video, thank you!!!
This may have been mentioned before but if you own a Honda 6500eu you must have your battery door on or it will surge. I was chasing the surge until I put the door on and instantly started to run correctly. The second cause would be as this video is doing.
Awesome ThankYou
Thank you
Does all small engine Honda's have the fuel tank filter? I have the Honda GX200 on a Simpson power washer. Thank you, John
Hi, our generator just started surging like crazy. Randomly, barely anything drawing from it. We’re in wildfire country, they did a power shut off for fire safety . So out of the blue, we needed the generator. My other half isn’t here right now, I’m no mechanic. I’m kind of freaking out with the surging, it’s 10 pm and the power is still shut off. My hubby can’t get here until Thursday, the power is supposed to be turned back on tomorrow night by 7pm 🙏. So I’m going to show him your video, hope that is the only reason it’s surging. I’m just praying it stays on all night, daytime not so bad. But night time not so good, especially when you live in the boonies. I doubt you’ll read this tonight, so all I can do is ride it out. I just hope nothing bad happens overnight, or hurts the engine in any way 🙏. Thank you for making this video, I’ll be very curious to see if it fixes the surging. 😊
If it has a eco mode, turn it off see if that helps for now. You may have some water in the carb as well that might get pulled through and clear up. Make sure there is fresh gas in it and dump a bottle of sea foam in it until he gets back. Good luck and hope your power comes back on soon.
Tepco Cycle Repair , has fresh gas in it. Where would I get sea foam ? Never heard of it, something else I’m noticing this morning. It has not surged in the last hour at all, other issue. My son lives in a travel trailer which he plugs into and outlet in our pumphouse to get power too, he says he only uses it for light. But now I wonder because it has not done it yet today, and I kn he’s sleeping. So could the trailer cause it ? I don’t kn if it’s just lights being used, sure is odd how it’s not doing it now. I’m making my other half take it in for a service either way, I don’t need it to screw up when I have 3 ft of snow outside. I have no way to get heat, I kn my heater makes it surge. It’s central forced air heater, I wish I had a wood stove for heat. But that’s not an option right now. Anyway sorry for babbling on, thanks for your help. And again, where would I get sea foam just so I kn ? Thanks 😊🌸
@@wshazbot62 You can get the seafoam from any auto parts store, but with that info it doesn't sound like You need it. You may be maxing out the generator especially if you're running a heat pump on it I'm surprised it's able to do that. I'm guessing it's the same one I'm using in the video?
Tepco Cycle Repair no heat pump, not sure where I said that ?
It’s getting taken in for a service, and we ran the trailer on it before. It didn’t surge then at all, thanks for your advice 😊
exelent!!!
WOW GREAT THANK
My predator 3500 is doing this right out of the box. 1st tank of gas.
I find it hard to believe I need to rebuild the carb but I guess I will.
I have a Predator 3500 and have had it for about 4 plus years so far. I am having a problem right now with mine. When I go to turn it off it keeps wanting to run and chug, and like it's dying but just won't shut off until all the gas in the carb runs out. Any advice?
Surging = Fuel Starvation, especially with less than half tank of fuel. A generator runs at high speeds all the time requiring the highest of volume of fuel in the line at all times.
Generators are designed to be low profile and an inherent flaw is that the fuel tank is (TOO LOW) just slightly above the carb fuel inlet for gravity feed through a hose. At high speeds and especially with little fuel in the tank causes a weak flow to the fuel inlet causing starvation/surging.
SOLUTION:
I have a Honda GX-390 and have discovered that by raising the entire fuel tank by 8" gave me MUCH better fuel flow down to the carb and the surging went away even with almost no fuel left in the tank. You can definitely see the difference (before and after) with a see-thru clear fuel filter which should always be at least 1/2 full during operation on a high speed motor/generator.
Another mistake I made was storing Ethanol fuel for more than one season in my shed. The stuff goes bad and causes havoc on small engines. Periodically check the color of the stored fuel in a glass jar. It should be clear. If it is golden/urine colored, DONT USE IT in a small engine.. Car engines don't seem to have a problem with the aged fuel. I had about 20 gallons of yellow colored fuel and added a few gallons at a time to an almost full tank of gas in my car and it burned it with no problem.
thank you
Thanks for watching!
I have a different style Honda carb. It is factory sealed, but still has a screw opening to the idle jet area. The carb I have is surging, while engine is running. I put carb on carb cleaner for over 12 hours to bot soften and loosen up any buildup inside the vents and center tube. I then both inserted a small wire down through the idle jet opening, and the wire went the jet hole for a length of over a inch, very freely. I put pressurized carb cleaner through the screw opening, and it comes ot inside the carb's venture area ( so that small vent is free and clear of any dirt blockage. Main fuel flow tube is like new, and clean (even all of it's small holes. Main jet is clean as a whistle, and jet hole is wide open. Now I have cleaned many a carb over the years, and never had trouble like this carb has. I even inserted a stiff nylon brush into the main fuel tube, right up to where it comes out into the venture. Everything is clean as anyone can get this carb. I have repeated this process 4 times now, and still I have surging, while engine is running. It seems as if the idle hole in the main fuel flow tube in the center of the carb is plugged, because the idle section doesn't seem to be getting any fuel through it, and this is causing the engine to surge while running. Is there any way I can open-up that vent hole in the main center tube to allow fuel to pass through once again? It's either that, or I need to buy a new carb. The issue seems to be, half way up the inside of the main center tube. I ordered a set of brass fiber bushes, that will fit into that main tube to see if I can free up that area, and allow the fuel to flow to the idle area. Any suggestions on how I can get the fuel to the idle jet, and beyond on this carb?
... I might add.... Each time I opened and cleaned the carb (which was 4 times), the carb sat in Gunk carb cleaner for 12 hours each. Still there is blockage in the idle section causing surging. It's just now getting fuel in that area.
The problem with these carbs is you can't adjust the idle mixture screw. If you could the surging would be easily fixed. My suggestion to you is to get a new pilot jet and replace it. Or get a new carb that you can adjust the mixture screw.
@@TepcoCycleRepair ... Maybe it's time to replace the carb. I'm thinking maybe some grit has got caught, or wedged in that hole, and doesn't want to be removed, thus stopping the flow of needed fuel for idle section to work properly. It's worth a try in trying to save this carb, but the more I try, the less it seems it will come unplugged. Out of the many carbs I have cleaned over the years, this is my fist, that is plugged solid within the main center tube section. I did an older 4 hp snow-blower engine as well today, that also needed a good carb cleaning. That turned out just fine. Engine runs like a dream again. It's best to do some asking, and learn something new, but in this case, I think a new carb is the remedy.
...by the way, thank you...
@@TepcoCycleRepair ... I think I am wasting my time in trying to save this carb. I think a new carb should be put on this mower.... Thanks loads for your opinion, and help. I was just looking to see if there was something I could do to get it working again, that I didn't know about (and I have cleaned many a carb over the years). Doesn't hurt to ask , that's for sure. Again Thank You.
Thumbs down? Best one I've seen
Can't please.everyone, thanks for watching!
I just bought an EU2000I and it was not wanting to take a full load unless the choke was on. I cleaned the carb twice including the top jet and it will only run correctly with the choke half way on. It idles fine but is way lean at full throttle. I was able to get my money back but what is going on. Do these thing have a fuel pump of some sort. Float bowl appears to be full of fuel. It will run all day with the choke half on but it should run without it.
It's your pilot jet. Did you use a wire or something to push through it? Are the o-rings ok on the jet? Your description is a classic case of a clogged pilot jet.
Awesome video. Didn’t fix mine but it was a good try. I think mine is an electrical problem. Any experience on that?
I more question. I have to choke eu3000i even when engine is warm/hot. Is that normal? Push choke in second it starts. Runs fine.Thanks from Dennis
Yes that's fine.
Cleaned out the pilot jet as well as Sonic cleaning all carb parts. Still surging, though not as bad. As far as the mixture screw? What's the advantage of breaking off the tab to make it turn a full turn as opposed to just ¼ turn as it's intended ..... ESPECIALLY considering some genset carbs have no mixture screw adjustment at all - just a plug. I have 2 carbs for our Honda eu6500is. One came plugged (not adjustable) & the other is ¼ turn adjustable. But since some are obviously not intended to be adjusted, how crucial could cleaning out that port really be. I could remove the permanent plug if it were to really help.
The advantage is that you can clean it out and have more adjustment. It will surge at low rpm if it has low compression or a bad valve as well.
Tepco Cycle Repair - our surge happens when eco is off - or a load of 3.5Kw's or greater demand is required while in eco mode. We have more maintenance & diagnostic hours of use, than actual generator need .... 37hrs vs 20 - total of 57hrs.
I had to take top fuel indicator off to fix float inside but when I screwed down indicator back on it seems to leak when moving around with full tank. Any recommendations on stopping gas from coming out around edges of the indicator?
If the rubber seal is dry or ripped, you can use something like a honda bond, or motoseal from permatex. Take it back out, clean and dry it good and apply as per the directions.
Very good video and nice explanation. I have predator 4000 and my problem is that it starts and runs fine on choke but when I slide it to run it shuts off. On choke I can run some tools that don't put too much load on it but If I put heavier load on it it will shut off too. Feels like fuel problem, can you help?
Yes, classic sign of a clogged pilot jet. Just pull and clean the carb completely and you should be good to go.
Where did you get the filter tube that goes inside the fuel tank? I can not find one for mine
The part number for the EU3000IS is 16952-ZB4-005
amzn.to/3owitDw
I have an unrelated question to this video. I just replaced the gas tank on my generator. When I filled it full of gas, all of the gas drained out of the upper carb drain hose. Do you know why this would be? I don't see an adjustment screw.
Sounds like it's overflowing and filling the carburetor with fuel so check your float needle and make sure it's cutting the fuel off when the bowl is full.
Great video. Does the eu2000i have fuel filter also?
Just the in tank screen on the petcock tube.
What if the motor surges under no load but runs better (still not great) under load? Older B&S Generac generator.
Clogged pilot circuit. Just give it a good carb clean
My EB 5000 x surges bad with no load...and my auto throttle does not work..I have to flip the switch
I have brand new honda 2200i. Been recalled, ran rough in economy mode before it was in shop,now slightly worse. Runs smoothly at half choke however. Hard to imagine anything clogged, can you suggest an adjustment? Thanks for the great video!
If it was repaired due to a recall, I would bring it back..if it needs choke to run, it's lean on the pilot, so pilot is clogged or it's sucking air somewhere.
@@TepcoCycleRepair Thanks for your response. I was hoping l wouldn't have to take it back, but its still under warranty. At least I'll sound like I know what's going on! Thanks again, great video!
Are the engines commercial/industrial grade is that why they are better than champion, generac, or Wan
Not necessarily, I just think the quality of the components are better. Metals, electrics etc. I've worked on a bunch of all brands and metal quality differs greatly and because of that things wear quicker, corrode faster and rubbers dry out faster in the less expensive units.
Is that pilot on walbro or nikki carbs for riding mowers?
Just on these. Most pilots are in the bowl.
Great video. I have about 6700 hours on my EU3000IS (4 years old, CARB model) . About 1200 hours ago, it started running a little rough when ECO mode was off. But, during the winter, I never run the AC, so it stayed on ECO. About 300 hours ago, it really started getting rough. I previously cleaned the carburetor, but decided it may just be getting old. Purchased a new one, adjusted the valves, oil, air filter, spark arrestor. It seems to run a little better when I adjust the idle screw at one speed, but as soon as the load changes, it gets rough again. Now even at idle in ECO, it's running rough. Surges a lot. Anyways, I guess I should try the tank filter. Do you just unscrew from under the tank, or does it just pull out? I don't want to break it... Thanks again. Do you have a patreon or PayPal?
I'm curious if it's just at the end of its life and the internals need to be replaced..
When you unscrew the fuel valve at the bottom of the tank it just pulls out. I do have a patreon, just haven't launched it yet. Thanks for watching!
I have this SAME problem. I live off grid and eco mode would be nice to use because it saves so much gas. But it’s impossible to adjust because of the load changes.
Get it adjusted in eco mode with no load. It should be fine everywhere else in the rpm range. Always start with a good carb clean and valve lash check if you're having issues.
@@TepcoCycleRepair I dont think eco mode will work with my new inverter. When my batteries enter absorb charging mode it requires a heavier load. So the eco mode lags a little to long before it kicks on. Youll hear it rev up, but by that point my inverter already stopped the charging because it couldnt get the power fast enough. Then the inverter will stop the charging cycle, which in-turn unloads the generator. Then it restarts in bulk charging, and its a never ending cycle.
maybe i could adjust the idle a little higher on the eco mode, never tried it yet. I think its just too much of a lag between calling for power, and revving up to that load.