Thanks for all your vids. I have done this a million times with the measurements. This flat test is by far the easiest and most logical way of doing things. . I've replaced the needles many times, too. Now and then I still get a leaky carb. I think it is just the thing with these motors. A full link & sync vid in detail would be good if you ever get the time and motivation. Otherwise, thanks for everything. All the way from Australia.
I'm so glad I watched this. I'll admit, I was a bit confused on your previous comments on hitting the venturi with air and watching to for fuel to shoot out. Now I understand how, and more importantly why. Thanks again!
Hi! I have a merc 35 from 87’ with the same side bowl carburetor. It’s rebuilt and runs fine but when tilting up the engine fuel will pour out of the carburetor (seems like most of the fuel in the bowl pours out). Do you know if this is normal on these things or if there is anything I should check? Thanks in advance!
Bro. Love your videos. Excellent explanations. I don’t think I wouldn’t have kept my Merc if if were not for you. I couldn’t take the tangs out so I soaked the entire bowl top assembly in spray can carb cleaner. Used a glass jar with a lid. When I took it out, the bowl was super cold to touch and the needle and tangs were pushed out (fuel stuck open). the needle doesn’t go in and out. What happened?!? ‘83 40HP
Hey buddy I have a question I have a 1977 85hp Mercury outboard run good out of water but you put it in water and put it into gear it dies what could it be please help
Fuel issue. All fuel lines, carbs, pumps, tank etc need to be checked. Also, timing needs to be set to spec with the carbs completely closed. I'm actually having a similar issue and I believe it to be the fuel pump but I do not like to guess. I'm testing everything. Video will be out soon. Good luck my friend! Son
I have a trim question ...can I test trim up/down with out it wired to relays ....just at motor leads ...I want to make sure it works before it's all put back together....
@MerCSon, thank you so much for this video. I am restoring an '86 90 HP 2 Stroke Mariner Tower of Power and your videos have been invaluable! I have the Service Manual and the measurements in the book leave the jet open a little. So thanks again. Question, do you have a video showing how to remove or at least lower the lower cowling? I'm about to dive into timing and linc/sync. Thanks again! Zac
Powerhead needs removed to remove lower cowling. You can lower it by removing the upper cowling bolts and taking off the horseshoe beneath the cowling. Son
Mercson, I have a 79 115 inline 6. When I pump the bulb up, fuel is pouring out of the carbs. It’s hard to start but once it starts I can restart it and it fires right up however, if I shut it off for say 1/2 hr or so and go to restart it it’s very hard to start. I have a fuel pump rebuild kit as well as three carb kits. Is this a symptom of carb issue?. Could it be needle and seat problem. I don’t think the carbs have ever been worked on. I’ve cleaned them but still have the fuel gushing out. Thanks for your help
So if the tangs aren’t set right would it cause it not to start. I rebuilt pump and carbs but didn’t set the tangs. Mine will fire instantly with a shot of star fluid. Would that be why it’s so hard to start?
Is it normal for the needles to kind of stick when fully pushed up? I've inspected them and it looks like they're good. But the kind of take a Lil more breath to pop them out when they get fully pushed in. I know the fuel pump pushes with like 5-9 psi. Do you blow fairly hard while testing it?
@MerCSonL6 I love your videos. I have a question I can’t seem to find the answer to in any of your videos. What would cause an L6 to shut off when throttle is applied quickly, but you can nurse it up to 3500 RPM but no higher while in the water. Out of the water (no load) it revs fine. I’m leaning towards a lean condition (clogged main jet) what do you think?
I’ve been trying too figure out my 1979 mercury 70 hp it like it don’t want too run wot rebuild the carbs checked the compression all good also I noticed like a white milky substance in the carbs at wot any help would be great.
It’s Gets like a white substance around the Vinatieri and inlet on the carbs . I haven’t checked the oil water separator yet hope I can this weekend. I still have boat in the water haven’t pulled it out yet .
Hey Son, if I replace my fuel pump diaphragm will I need to readjust my idle screws? Being that the old diaphragms was pretty hard compared to the new one. Thanks
I love your videos you seem to know your way around mercury engines I have I believe a 1988 80hp mercury outboard oil injected that the serial number was painted over and I can't read it is there anywhere else on the engine a serial number besides the transom bracket? I need a stator but don't know the part number the stator doesn't have a part number
On the starboard side of the block there should be silver circle stamp. Next to that on the engine block is the serial number. All you need is an cdi 4 cylinder stator. Have you tested the stator? I have videos on how to do that before you start throwing money at it. Son
@@MerCSonL6 there's a freeze plug a round silver stamp with the numbers A734373 Tha matches some of the numbers I'm able to see on the serial number on the transom bracket
Awesome video! Your videos have helped so much with my 1986 115hp! My trim motor has gone out, having a hard time finding the replacement, any recommendations on where to look?
you can put new brushes into that electric motor.. just did that on my 1970 trim unit. merc.. tricky to reload the new brushes into the receivers and put the armature back into place and into the housing.. new brushes had to be shaped to custom fit.. but that was the easy past . new brushes cost under 10 dollars.. did the same job to my buddies tower of power a few weeks after that .. 50 year old brushes were worn to a stub. i guess it could be the solenoid but you can put 12 volts right to the terminals on the electric motor to see if its working.. check both directions.. both terminals ... than you know the motor itself is working.. good luck. it was a satisfying repair to do.
@@MerCSonL6 I’ve been having issues recently with my 115 l6 early 80s. I can’t tell if it has a lean sneeze or back fire. About a month ago I had a crack in a fuel hose so I replaced them and took it out, ran fine. Took it out the next weekend and it was idling rough and won’t rev over about 3k rpm without bogging. Replaced switch boxes, fuel pump diaphragm and tested stater. Would it be possible to send you a video of it idling?
@@chris94513 it should be idling around 750-900 rpms. I would grab a dva and check the voltage going to your coils at idle. Should be around 150V at a slightly higher rpm if my memory serves me correctly. Son
Son, Great video! I'm working on a buddies 1985 35hp. I'm an outboard mechanic myself however I focus on Johnson/ Evinrude. Anyways, It has a similar carb with the side bowl. Ive had this thing apart 4 times and can not figure out why when i pump the ball its leaking out of the bowl vent. Also when shes running shes pumping fuel out of the bowl vent (.092). So it almost seems like the needle is sticking. Its a brand new carb kit with a new needle and seat. I'm pulling my hair out of my head on this thing Any suggestions ? PLEASE HELP. - Nick -
@@MerCSonL6 I figured out what I did. The one tang with the half C bend in it was upside down! I don’t know how I did that .. twice… but after seeing your close up of it being level I realized right away! Thanks man, I’m a J/E guy , if you ever have an issue with one of those lmk . Happy to help !
Hello son. I have a Mercury 40hp 2 stroke engine 1979. I have change the gas tank all fuel lines clean the carbs and it cranks fine ,but still want get over 5mph on full throttle. What could be my problem?
It's not getting enough fuel is what it sounds like. Perhaps a link and Sync and make sure the carbs spray fuel through the main when you hit the venturi with compressed air.
@@MerCSonL6 I was getting ready to do the test, but my primer was already hard, so I squeeze it anyway and seen gas coming out the main. I did the test anyway, and did see gas coming out the main when I blew air into the venturi.
I'm already stressed because my carb squirts gas everywhere. I'm not in the mood to be entertained by a giggling teen. And I'm getting sick trying to follow her camera work. ½ thru and "CHECK PLEASE"
![I.N "HALLUCINATION" | [Stray Kids : SKZ-PLAYER]](http://i.ytimg.com/vi/n5B5q1Hwt_U/mqdefault.jpg)
![Noob To Max With DRAGON REWORK In Blox Fruits [FULL MOVIE]](http://i.ytimg.com/vi/LnBMOinoOvA/mqdefault.jpg)
Thanks for all your vids. I have done this a million times with the measurements. This flat test is by far the easiest and most logical way of doing things. . I've replaced the needles many times, too. Now and then I still get a leaky carb. I think it is just the thing with these motors.
A full link & sync vid in detail would be good if you ever get the time and motivation.
Otherwise, thanks for everything. All the way from Australia.
I have link and Sync videos out already for adi and distributor models my friend. Son
ruclips.net/video/x5MQUmXhf9c/видео.html
ruclips.net/video/OUFXaNgk0Xk/видео.html
@@MerCSonL6 you are a champion. Thanks!
Rebuilt my carbs today on my 1150 and installed. No leaks anymore and starts fantastic! Cheers for all the videos!
Love it!!!
I'm so glad I watched this. I'll admit, I was a bit confused on your previous comments on hitting the venturi with air and watching to for fuel to shoot out. Now I understand how, and more importantly why. Thanks again!
This video help with my top carb problems.thanks
If I have air flow when on a flat surface how do I adjust the tangs? And what do you use to lose the back drag?
I need helping finding a fuel pump kit and stator for this motor. No spark on their cyl. Is there a way to test and verify its stator?
Just in time for my carb rebuild ......thanks son ...
Awesome video, as usual! Thanks son!
Thank you! I looked for this everywhere!
Hi! I have a merc 35 from 87’ with the same side bowl carburetor. It’s rebuilt and runs fine but when tilting up the engine fuel will pour out of the carburetor (seems like most of the fuel in the bowl pours out). Do you know if this is normal on these things or if there is anything I should check? Thanks in advance!
Sorry that was totally off subject. Good videos man.
Hi does all that apply to the WME carbs on a 115hp 4 cylinder 2x2 I can get the engine to run but it takes a lot of cranking
Hey I've got a 1976 1150 really good shape. I'm in Tennessee, you ever come this way? 500 bucks has the tilt and trim that works.
Bro. Love your videos. Excellent explanations. I don’t think I wouldn’t have kept my Merc if if were not for you. I couldn’t take the tangs out so I soaked the entire bowl top assembly in spray can carb cleaner. Used a glass jar with a lid. When I took it out, the bowl was super cold to touch and the needle and tangs were pushed out (fuel stuck open). the needle doesn’t go in and out. What happened?!? ‘83 40HP
Hey buddy I have a question I have a 1977 85hp Mercury outboard run good out of water but you put it in water and put it into gear it dies what could it be please help
Fuel issue. All fuel lines, carbs, pumps, tank etc need to be checked. Also, timing needs to be set to spec with the carbs completely closed. I'm actually having a similar issue and I believe it to be the fuel pump but I do not like to guess. I'm testing everything. Video will be out soon. Good luck my friend! Son
What was the issue with the tell tale? You didn't expand after it started working
I have a trim question ...can I test trim up/down with out it wired to relays ....just at motor leads ...I want to make sure it works before it's all put back together....
yes thats the right thing to do to confirm motor is working.. check both directions..
Yes. Son
@MerCSon, thank you so much for this video. I am restoring an '86 90 HP 2 Stroke Mariner Tower of Power and your videos have been invaluable! I have the Service Manual and the measurements in the book leave the jet open a little. So thanks again.
Question, do you have a video showing how to remove or at least lower the lower cowling? I'm about to dive into timing and linc/sync.
Thanks again!
Zac
Powerhead needs removed to remove lower cowling. You can lower it by removing the upper cowling bolts and taking off the horseshoe beneath the cowling. Son
Love your videos, I have a 1975 850 merc that stalls when I put it in gear. If I hit the choke button quick as I shift it stays running. Any ideas?
Fuel delivery issue. Not getting enough fuel.
Mercson, I have a 79 115 inline 6. When I pump the bulb up, fuel is pouring out of the carbs. It’s hard to start but once it starts I can restart it and it fires right up however, if I shut it off for say 1/2 hr or so and go to restart it it’s very hard to start. I have a fuel pump rebuild kit as well as three carb kits. Is this a symptom of carb issue?. Could it be needle and seat problem. I don’t think the carbs have ever been worked on. I’ve cleaned them but still have the fuel gushing out. Thanks for your help
Rebuild the carbs/fuel pump. And set tangs accordingly. Problem solved. Son
@@MerCSonL6 Good morning. As always, love watching. Thanks so much for your help and support. Keep the videos coming!!!
So if the tangs aren’t set right would it cause it not to start. I rebuilt pump and carbs but didn’t set the tangs. Mine will fire instantly with a shot of star fluid. Would that be why it’s so hard to start?
It's not getting fuel
Is it normal for the needles to kind of stick when fully pushed up? I've inspected them and it looks like they're good. But the kind of take a Lil more breath to pop them out when they get fully pushed in. I know the fuel pump pushes with like 5-9 psi. Do you blow fairly hard while testing it?
I do not. It common for some needles to stick. The oil from the fuel will loosen/lubricate. Son
Are you running with the economizer tube disconnected? Is that shrink wrap your using?
Correct. And yes. Son
@MerCSonL6 I love your videos. I have a question I can’t seem to find the answer to in any of your videos. What would cause an L6 to shut off when throttle is applied quickly, but you can nurse it up to 3500 RPM but no higher while in the water. Out of the water (no load) it revs fine. I’m leaning towards a lean condition (clogged main jet) what do you think?
It's definitely a fuel related issue. Carbs are top of the food chain. I would check there first. Son
@@MerCSonL6 that’s what I’m thinking. Many are mentioning stator “high side” is this a Merc thing only? Never heard of a high side ignition?
@@MerCSonL6 oh, and thank you very much for the reply. :)
I’ve been trying too figure out my 1979 mercury 70 hp it like it don’t want too run wot rebuild the carbs checked the compression all good also I noticed like a white milky substance in the carbs at wot any help would be great.
Milky in the carbs? Milk is something that occurs when water is mixed with oil. I would check your fuel tank my friend. Son
It’s Gets like a white substance around the Vinatieri and inlet on the carbs . I haven’t checked the oil water separator yet hope I can this weekend. I still have boat in the water haven’t pulled it out yet .
Hey Son, if I replace my fuel pump diaphragm will I need to readjust my idle screws? Being that the old diaphragms was pretty hard compared to the new one. Thanks
You should not unless the engine was starving for fuel to begin with. Son
I love your videos you seem to know your way around mercury engines I have I believe a 1988 80hp mercury outboard oil injected that the serial number was painted over and I can't read it is there anywhere else on the engine a serial number besides the transom bracket? I need a stator but don't know the part number the stator doesn't have a part number
On the starboard side of the block there should be silver circle stamp. Next to that on the engine block is the serial number. All you need is an cdi 4 cylinder stator. Have you tested the stator? I have videos on how to do that before you start throwing money at it. Son
@@MerCSonL6 no I have not tested it I don't know much about this engines it fires up but when I give it gas it backfire
@@MerCSonL6 there's a freeze plug a round silver stamp with the numbers A734373 Tha matches some of the numbers I'm able to see on the serial number on the transom bracket
@@gilfredooquendo9969 that's your serial number
Nice video man
Awesome video! Your videos have helped so much with my 1986 115hp! My trim motor has gone out, having a hard time finding the replacement, any recommendations on where to look?
you can put new brushes into that electric motor.. just did that on my 1970 trim unit. merc.. tricky to reload the new brushes into the receivers and put the armature back into place and into the housing.. new brushes had to be shaped to custom fit.. but that was the easy past . new brushes cost under 10 dollars.. did the same job to my buddies tower of power a few weeks after that .. 50 year old brushes were worn to a stub. i guess it could be the solenoid but you can put 12 volts right to the terminals on the electric motor to see if its working.. check both directions.. both terminals ... than you know the motor itself is working.. good luck. it was a satisfying repair to do.
Just the motor? You can find that at marineengine.com or even ebay. Son
How often would you recommend rebuilding cards when using boat about 3 times a month?
Once every 2 years as long as you are using the best gas you can find and petroleum distillates (seafoam). Son
@@MerCSonL6 I’ve been having issues recently with my 115 l6 early 80s. I can’t tell if it has a lean sneeze or back fire. About a month ago I had a crack in a fuel hose so I replaced them and took it out, ran fine. Took it out the next weekend and it was idling rough and won’t rev over about 3k rpm without bogging. Replaced switch boxes, fuel pump diaphragm and tested stater. Would it be possible to send you a video of it idling?
@@chris94513 it should be idling around 750-900 rpms. I would grab a dva and check the voltage going to your coils at idle. Should be around 150V at a slightly higher rpm if my memory serves me correctly. Son
Son, Great video! I'm working on a buddies 1985 35hp. I'm an outboard mechanic myself however I focus on Johnson/ Evinrude. Anyways, It has a similar carb with the side bowl. Ive had this thing apart 4 times and can not figure out why when i pump the ball its leaking out of the bowl vent. Also when shes running shes pumping fuel out of the bowl vent (.092). So it almost seems like the needle is sticking. Its a brand new carb kit with a new needle and seat. I'm pulling my hair out of my head on this thing Any suggestions ? PLEASE HELP. - Nick -
Oil from the mix will help loosen the seat. Have you tried to replace the seat metal gaskets? Lmk. Son
@@MerCSonL6 I figured out what I did. The one tang with the half C bend in it was upside down! I don’t know how I did that .. twice… but after seeing your close up of it being level I realized right away! Thanks man, I’m a J/E guy , if you ever have an issue with one of those lmk . Happy to help !
Where can I get a carb rebuild kit for a 78 150hp
www.ebay.com/itm/362609160144?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=AdRkBcPPQa2&sssrc=2349624&ssuid=c7HxGSEnQjG&var=&widget_ver=artemis&media=COPY
Thanks how about the floats and other parts your videos have helped tremendously thanks
I need help finding a fuel pump kit and stator for this motor.
I need a top cover latch assembly for my 140 do you have one for sale?
I have whole cowlings for sale. If you are serious lmk. Son
@@MerCSonL6 thanks but I have like new top cowling but the latch is broken,though you might’ve had an old junker that had a good latch
@@maryfithen5006 I don't have "junkers"
@@MerCSonL6 sorry no offense
Hello son. I have a Mercury 40hp 2 stroke engine 1979. I have change the gas tank all fuel lines clean the carbs and it cranks fine ,but still want get over 5mph on full throttle. What could be my problem?
It's not getting enough fuel is what it sounds like. Perhaps a link and Sync and make sure the carbs spray fuel through the main when you hit the venturi with compressed air.
@@MerCSonL6 Do you have a video on doing something like this?
@@bigjack5974 ruclips.net/video/yh3YMJdONvI/видео.html
@@bigjack5974 different engine bit the concept is the same. Fuel should be spraying out of the main when the venturi is hit with air
@@MerCSonL6 I was getting ready to do the test, but my primer was already hard, so I squeeze it anyway and seen gas coming out the main. I did the test anyway, and did see gas coming out the main when I blew air into the venturi.
My 80hp mercury starts and stays running only by keep pressing the choke when is about to die any suggestions
Fuel flow issue.
I would love to buy one from ya
Miss youan
Miss you man
I'm already stressed because my carb squirts gas everywhere. I'm not in the mood to be entertained by a giggling teen. And I'm getting sick trying to follow her camera work. ½ thru and "CHECK PLEASE"
hey i really need to talk with you would u mind calling me
Email?
Not sure RUclips allows phone numbers
I’m dizzy
Got to be more serious man
What do mean??
I suggest you fire your camera woman , she hasnt got a clue how to make a stable video
Find another channel. Son