Im building a 301cc for the first time and THIS is one of the only and most helpful videos ive found.your channel has help guide me threw any hiccups so thank you👍🏾
I like the fact that you go into pretty good detail in what you're doing, helpful when someone like me who's still just starting to build and upgrade engines and go karts. Have a buggy i just picked up and putting a 420 on it so Thanks even if this video is 3yrs old.
That gas tank is slick..I will be contacting him to get one made for my racing mower build! Thanks for the great videos, really does help out for people that are mechanically inclined but have never worked on these small engines.. I've learned a lot from this channel for sure!
Can someone PLEASE tell me how to get in touch with the guy who makes those gas tanks ? I have a totally restored Yerf Dog two seater with a new 420 Predator engine and I want to switch out my gas tank for for like this one. Please help. Thanks !!
Well, I just picked up my own engine, and enjoyed having "foresight" in removing those items, and cleaning things up. Thanks much, I chose this engine because of you and several other people who have enjoyed putting them into shape. I look forward to "test driving" mine. I'm impressed with the cleanliness, good design, and quality you show is in these engines. Thanks again.
@@jeremyshea8055 I'd been looking for a carb for a chipper/shredder, two years, and bought the engine, then found a "Chinese carb", got my shredder running, and now am looking at that engine for a "walk behind tractor", and knowing the options from someone else's experience is a great boon. I live on sixty acres, and am planning on planting some five to ten acres next year. This and other videos has opened my options, and made getting going much easier, cost effective. I've found the Chinese have essentially produced parts for everything we've got that breaks, and they work, my government may hate them, but I've always respected their culture, history, and am enjoying their trade benefits.
Thank you! I picked up a run down go kart for my kids that has a 270. Its beat to hell and i wasnt sure what to do. Your video helped a LOT. Lots of info i didn't know.
Really Good video. Prompted me to get in touch with Brad Hill and get one of his beautiful gas diamond plate tanks for my kart. Coming this week. got my brand new (still in the box) predator 420, header, air filter and new 40 series torque converter. Can't wait for this weekend to get to work. One thing on your video made me a little nervous. Not to be too picky but when removing small parts, (nuts and clamps) with your muffler off, you should stick a rag or something in the manifold opening. Having something fall in that hole is a big OOPS, and something your viewers should be warned of. Great videos coming out of Red Beards Garage. Keep it up pal. Thanks.
great video man ,just got a 420 for my off road kart build. even being a stock moter it has alot of power. I can't wait to see it with mods you put on it .
just have to say I really like how you make your videos. I found you through cars and cameras and you really put the for thought into the videos. keep it up and great job man.
Awesome build! The gas tank is a work of art that makes the engine. I would leave the low oil sensor alone. It would be sad to lose the engine because of low oil even though one should constantly keep checking the level.
I have never heard of anyone loosing the engine because of the oil sensor removal. You have to remove it on go karts. When you take curves hard or on a off road go kart it will kill the engine. That is the first thing I do when I get these engines
Thank You RBG for sharing this video about the 420cc predator engine. And, how too modify it. You gave me some ideas about my future 420cc build; especially the air filter! I should've thought about how to do that!? LOL! Have A Great Weekend!
You should add in your description that you bent the valve rod/s. I’m so glad I stumbled upon your 2 yr later updated video. I’m fortunate you made one. Ty! Great detail in your vids otherwise.
I need your help.i,m trying to decide which engine to buy and what i need to take governor out and up grade springs .could you please tell me if the hemi and none hemi predator 420 heads have the same valve springs and how do you determine what lb of upgraded spring to use ? and where to buy them from.thank u.
After watching a few of your videos, listening to you talk and seeing your tools, I think Harbor Freight should be a sponsor of you and the channel. You make their tools look good. I have several sets of those screwdrivers ($7.99 on sale) as well as those long pliers. Love Harbor Freight, one of the good things to come out of California. Thanks for the videos.
A 212 can do that a 420 can do that a 459 should be able to do that when there is more aftermarket support and a 670 can my favorite motor of theirs is the 420 I been able to hit 93 before but I have a ton of aftermarket parts and a transmission
Well you can get a predator 212 or you can get any predator motor just have to upgrade it to go over seven miles per hour if you're trying to do that stock get 670 but a 212 would be the best option with a stage 5 build on it
Not sure if you will read this but when you remove the oil sensor bolt, on the other side there was a black plastic piece with a rubber washer. I used the rubber washer with a bolt and didnt need to tap anything. This was on the 212..
i'm sure you are aware of this but let me remind you if you delete the crank cover gasket for rtv on any type of engine like this you change the crank end play. my experience with predator motors they are on the tight side out of the box. for high rpm/load add an extra gasket for 2 1/2 or more thou end play. just use a dial ind on end of crank and move back and forth for a reading. loose end play will rpm better and won't bind the crank and roller bearings.
I haven't run across any of your videos removing material from the head to increase compression...why is this? Clearance issues to eyebrow reliefs, deck height clearnce, or connecting rod strength issues? Thanks in advance.
So if you disconnect the leaver on the goviner with the spring hook to it is it still nessery to split the case just to remove the gear that no longer works any way
I am building a mud motor for my duck boat using this same motor...what would you estimate the HP is now after you modded the engine as is in the video?
I have a question about the governor removal I'm building a cart and I'm using a Honda 390 and I've never removed one but I e had a couple spin out on riding mowers so what keeps the engine from racing out of control
fun fact HLSproparts doesn't ship the carb spacer to Canada I've had the go power sports filter and adaptor sitting waiting well I need to modify the go power sports header anyways just got the intake done the princess auto (Canadian harbor fright) engines come with the spacer and gasket
5 years later i had to change the carb because for somr reason the guy i sent my cart to for welding tore the engine apart had the carb so it was just dumping fuel right through to the ground. i got the carb changed now it only runs on choke so i came back here to make sure i have the spacer orented correctly
12:45 Excuse the question most likely you have already said what it is but I'm Italian and I can't completely understand the speech I wanted to ask what is that? rev limiter?
Hey red beard I have a mini bike with a predator 212cc with aftermarket air filter, exhaust, and I drilled the jet. Every time when I'm riding it will ride good then out of nowhere it starts to die .last week I went fishing with my friend and when I went to get back home I started driving and it died even though the engine wasn't hot and I let it idle for awhile so I have no idea what's wrong. I need your advice
Can I put something like that onto a motorized bike? If so what’s the biggest motor that I can put on a occ schwinn stingray chopper and a low rider?? I’m trying to find something where I’m going about 80+
Red beard I'm at wits end . I have golf cart with predator 420 installed 420 has governor removed . Has heavier 35 lb springs air box and smog removed .have after market carb kit . Problem is cannot get to idle . Only with choke . Please help don't know what to do
Yeah. I'm going in circles trying to find a flywheel with a ring gear that will fit the 212cc. The electric starter kit for the honda gx200 has a different taper, and will only fit the non-hemi predators. I checked out the billet flywheels from ARC, but they don't make them with a ring gear and they cost as much as the engine itself. I'm thinking maybe taking it to a machine shop to have them copy the taper from the old one.
Well the hemi does not have a place to bolt up the starter as well. Thats the reason they don't make an electric start for it. The block was never designed for a electric start.
Actually, this one does. Has a November of '16 build date from what I can see if that means anything. I had read on a lot of forums that folks had to do all kinds of stuff before to make them work. But I was able to install the starter as well as the charging coil with no problem at all. Now it's just that dang flywheel not fitting that's driving me bonkers. BTW, thanks for the response - and the great videos.
Just a heads up for anyone else looking to install electric start: I found a direct bolt on for the hemi predator. yay! Kohler 1702530-s Comes with inner and outer magnets, and original fan and recoil start will go right over it. just have to trim the cover and remove one nub from the back of the fins.
I'm doing the same thing but for a mini chopper. Would I do the same set up, throttle wise, when using a handlebar style throttle? Like after removing the govner.
Cool tank!! Motor looks good with it. Here is a tip you might not know. The valve cover is silver zink plated. Pull it off and buff the zink on it. The outcome will look like chrome and will match the shine on the tank Harbor Freight sells those buff kits with the the compound, you want to use the red rouge one.
!!Need some help!! Can't find stock info on 420cc jet sizes. Bought a cart with a 420 on it and has a #90 main jet and #25 pilot. Won't stay running and the plug is blacker then heck. I'd like to put stock in or find the right sizes for it. Has a stage 1 kit on it (air filter and header) but need to see if its jetted to big. Thank you!
I am having trouble with the governor. When i pull the gas it moves the butterfly barley on the carb sometimes it opens up all the way and it doesn't return back. What can i do.
I have a mud motor with a predator on my boat.. the header pipe has to go out the back and not to the side. My question is will it run ok with a straight pipe going out of the back? I've seen pipes that curl then go straight back but they're expensive
I'm curious I see the point of removing the governor but why remove the low oil sensor it could potentially save your engine, sure they are cheap but it beats pushing your go-kart out of the woods if you run out of oil.
+ARednecksLife if you take a left hand turn hard the engine will shut off. You can leave yours in but it is useless on a go kart. It is more for pressure washer and generators, so if they get knocked over it won't blow it up.
Red Beard's Garage I got basically the same engine (9HP) from Princess Auto here in Canada on mini bike, do you got a link where I can find that air filter kit?? I'm definitely doing the governor mod, I'll consider the low oil shutoff.
If you remove the governor gear, and for some reason, the crank moves and you haven't marked the governor gear before removal, how do you set it back in the proper alignment so the engine is not off balance?
On the 420cc Can you upgrade valve springs to the 18lb or more after govenor removal without replacing rod and fly wheel I'd like to get the rpms without spending an arm and a leg
I have a 420cc predator and it shuts down like its running out of gas. I have removed the governor and tapped the hole in the top of the motor for the fuel pump hose. I put another plastic walboro pump on and the same thing happens. any suggestions?
What rear sprocket should I use with a 420cc Predator and Series 40 torque converter if I want approximately 50-60 mph or is this even possible? Mostly driving on flat surface with 16" tires.
Red Beard's Garage I did but I we using a 40 series torque converter and didn't know if I just used the teeth on the jackshaft. I'm thinking 10 teeth on the back and 45 on the rear sprocket with 16" tires.
Hey Red Beard, if I remove the governor from a predator 420cc do I need to change out the flywheel and rod to a billet set-up or can I leave it. Thank you, Robert
You can get 50lbs valve springs and the performance kit on go power sports for the 420cc will work on it. As far as rod and flywheel I need to take it apart and see what will fit
When you are on a bumpy trail or take a curve hard it will kill the engine. Any go kart or mini bike you buy will not have a low oil sensor on it for this reason.
As long as you make it a point to check your oil, the sensor isn't good to leave in for a go kart. Sharp turns will momentarily slosh the oil to one side of the case causing the engine to stall, as the oil sensor shuts down the ignition by grounding the coil. It's difficult to win a race if your engine dies every time you make a sharp turn.
Would disconnecting the governor arm from the throttle achieve the same result without getting into the crankcase and removing the governor gear and arm?
Im building a 301cc for the first time and THIS is one of the only and most helpful videos ive found.your channel has help guide me threw any hiccups so thank you👍🏾
I cant believe how much of a difference there is power wise between the 420 and the 212.. love this block.
I like the fact that you go into pretty good detail in what you're doing, helpful when someone like me who's still just starting to build and upgrade engines and go karts. Have a buggy i just picked up and putting a 420 on it so Thanks even if this video is 3yrs old.
Same here! Just getting into building off road karts and his channel is the best I've found
That gas tank is slick..I will be contacting him to get one made for my racing mower build! Thanks for the great videos, really does help out for people that are mechanically inclined but have never worked on these small engines.. I've learned a lot from this channel for sure!
Well thanks for the support
Can someone PLEASE tell me how to get in touch with the guy who makes those gas tanks ? I have a totally restored Yerf Dog two seater with a new 420 Predator engine and I want to switch out my gas tank for for like this one. Please help. Thanks !!
Well, I just picked up my own engine, and enjoyed having "foresight" in removing those items, and cleaning things up. Thanks much, I chose this engine because of you and several other people who have enjoyed putting them into shape. I look forward to "test driving" mine. I'm impressed with the cleanliness, good design, and quality you show is in these engines. Thanks again.
Why did you use quotation marks when stating "foresight" and "test drive"? Im just curious and mean no disrespect.
@@jeremyshea8055 I'd been looking for a carb for a chipper/shredder, two years, and bought the engine, then found a "Chinese carb", got my shredder running, and now am looking at that engine for a "walk behind tractor", and knowing the options from someone else's experience is a great boon. I live on sixty acres, and am planning on planting some five to ten acres next year. This and other videos has opened my options, and made getting going much easier, cost effective. I've found the Chinese have essentially produced parts for everything we've got that breaks, and they work, my government may hate them, but I've always respected their culture, history, and am enjoying their trade benefits.
hey red beard. great looking engine. Learned a lot just watching the video. really can't wait to see it run. Man that is going to be awesome.
Thank you! I picked up a run down go kart for my kids that has a 270. Its beat to hell and i wasnt sure what to do. Your video helped a LOT. Lots of info i didn't know.
There is also a video on the channel about how to rebuild a gx270
Red Beard's Garage i ment to comment on that video. Think video ended and went to this one without me noticing.
I love the grease and tap trick. I will remember that trick. ty. cool mods. cheers 👍😎
This channel is awesome! I'm planning a swap on an Arrow 200 and this is a huge help!
Really Good video. Prompted me to get in touch with Brad Hill and get one of his beautiful gas diamond plate tanks for my kart. Coming this week. got my brand new (still in the box) predator 420, header, air filter and new 40 series torque converter. Can't wait for this weekend to get to work. One thing on your video made me a little nervous. Not to be too picky but when removing small parts, (nuts and clamps) with your muffler off, you should stick a rag or something in the manifold opening. Having something fall in that hole is a big OOPS, and something your viewers should be warned of. Great videos coming out of Red Beards Garage. Keep it up pal. Thanks.
He does awesome work and is an awesome guy as well. Thanks for supporting the channel.
great video man ,just got a 420 for my off road kart build. even being a stock moter it has alot of power. I can't wait to see it with mods you put on it .
+Charlie Whiteman hopefully the video will be out Wednesday
harbor freight is having a parking lot sale soon.. i might have to go grab one of these for the mini bike!
just have to say I really like how you make your videos. I found you through cars and cameras and you really put the for thought into the videos. keep it up and great job man.
+James Cotton thanks man. What did you mean by you found me through cars and cameras? Just curious
I started watching cars and cameras on RUclips and it suggested your channel and I have to say that you build much better
I try to do the best videos I can for your viewing pleasure
@@RedBeardsGarage Overlook too much good mechanical stuff for beginners on the other site.You mostly nail it.Trev New Zealand
Awesome build! The gas tank is a work of art that makes the engine. I would leave the low oil sensor alone. It would be sad to lose the engine because of low oil even though one should constantly keep checking the level.
I have never heard of anyone loosing the engine because of the oil sensor removal. You have to remove it on go karts. When you take curves hard or on a off road go kart it will kill the engine. That is the first thing I do when I get these engines
Well, that makes sense for that application.
Diggin that RBG KARTS sticker on that engine!
Thank You RBG for sharing this video about the 420cc predator engine. And, how too modify it. You gave me some ideas about my future 420cc build; especially the air filter! I should've thought about how to do that!? LOL! Have A Great Weekend!
You should add in your description that you bent the valve rod/s. I’m so glad I stumbled upon your 2 yr later updated video. I’m fortunate you made one. Ty! Great detail in your vids otherwise.
I need your help.i,m trying to decide which engine to buy and what i need to take governor out and up grade springs .could you please tell me if the hemi and none hemi predator 420 heads have the same valve springs and how do you determine what lb of upgraded spring to use ? and where to buy them from.thank u.
After watching a few of your videos, listening to you talk and seeing your tools, I think Harbor Freight should be a sponsor of you and the channel. You make their tools look good. I have several sets of those screwdrivers ($7.99 on sale) as well as those long pliers. Love Harbor Freight, one of the good things to come out of California. Thanks for the videos.
Which motor from harbor freight should I get if I'm trying to hit over 70 miles per hour on a go-kart
A 212 can do that a 420 can do that a 459 should be able to do that when there is more aftermarket support and a 670 can my favorite motor of theirs is the 420 I been able to hit 93 before but I have a ton of aftermarket parts and a transmission
Well you can get a predator 212 or you can get any predator motor just have to upgrade it to go over seven miles per hour if you're trying to do that stock get 670 but a 212 would be the best option with a stage 5 build on it
@@thatpersonthatexists7851 hey man do you have links to your build? Would love to check that out
@@thatpersonthatexists7851where do I get a transmission
@@thatpersonthatexists7851where do you get transmissions for predator wngines
Not sure if you will read this but when you remove the oil sensor bolt, on the other side there was a black plastic piece with a rubber washer. I used the rubber washer with a bolt and didnt need to tap anything. This was on the 212..
What jet did you use? Non of your links go anywhere anymore?
In your opinion which mini bike should I buy for adult 198 lbs . Will be use off road thanks
The trailmaster MB200 is in my opinion the best mini bike on the market
If I want to remove the governor on a 301 predator is it more similar to the 420 or a 212
i'm sure you are aware of this but let me remind you if you delete the crank cover gasket for rtv on any type of engine like this you change the crank end play. my experience with predator motors they are on the tight side out of the box. for high rpm/load add an extra gasket for 2 1/2 or more thou end play. just use a dial ind on end of crank and move back and forth for a reading. loose end play will rpm better and won't bind the crank and roller bearings.
I haven't run across any of your videos removing material from the head to increase compression...why is this? Clearance issues to eyebrow reliefs, deck height clearnce, or connecting rod strength issues?
Thanks in advance.
So if you disconnect the leaver on the goviner with the spring hook to it is it still nessery to split the case just to remove the gear that no longer works any way
+Allen Lackey I would definitely open it up and remove everything. It's not necessary but I have had a subscriber mess his engine up by leaving it in.
So I have a question do I need to put 50 ilb springs in if I take the governor
Why would you have to remove the governor if you removed the governor arm?
Question. I got that muffler and a 420 header pipe, but how did you attach the muffler to the header pipe?
Without replacing the stock valve springs and doing this upgrade how many more rpm's can you get with out throwing a rod or damaging the engine ?
Did you say what size tap you use? If so I must have missed it unless you use the 3/8th tap for both? Thanks for the info.
I am building a mud motor for my duck boat using this same motor...what would you estimate the HP is now after you modded the engine as is in the video?
With the ported heads 45
Do you have to upgrade the rod and flywheel like a 212 or no after deleting governor?
What number jet do you use when doing just the intake and exhaust upgrade
I have a question about the governor removal I'm building a cart and I'm using a Honda 390 and I've never removed one but I e had a couple spin out on riding mowers so what keeps the engine from racing out of control
What size is the jet? Gopowersports don't have the stage one upgrade kit n haven't for months now. So I gotta get it all separately
Not sure. It all depends on your altitude
fun fact HLSproparts doesn't ship the carb spacer to Canada I've had the go power sports filter and adaptor sitting waiting well I need to modify the go power sports header anyways just got the intake done the princess auto (Canadian harbor fright) engines come with the spacer and gasket
5 years later i had to change the carb because for somr reason the guy i sent my cart to for welding tore the engine apart had the carb so it was just dumping fuel right through to the ground. i got the carb changed now it only runs on choke so i came back here to make sure i have the spacer orented correctly
12:45
Excuse the question most likely you have already said what it is but I'm Italian and I can't completely understand the speech I wanted to ask what is that? rev limiter?
Kinda. It’s an rpm pulse governer
Hey red beard I have a mini bike with a predator 212cc with aftermarket air filter, exhaust, and I drilled the jet. Every time when I'm riding it will ride good then out of nowhere it starts to die .last week I went fishing with my friend and when I went to get back home I started driving and it died even though the engine wasn't hot and I let it idle for awhile so I have no idea what's wrong. I need your advice
Its always hard to trouble shoot something over the internet. Will it start right back up after dying?
Austin Davis possibly your low oil sensor... bypass it if you haven't already
yo
check your fuel filter it could be clogged
since it dies before it even gets hot and idles fine u def have a fuel issue
Can I put something like that onto a motorized bike? If so what’s the biggest motor that I can put on a occ schwinn stingray chopper and a low rider?? I’m trying to find something where I’m going about 80+
Red beard I'm at wits end . I have golf cart with predator 420 installed 420 has governor removed . Has heavier 35 lb springs air box and smog removed .have after market carb kit . Problem is cannot get to idle . Only with choke . Please help don't know what to do
I watched a similar modification but he put in heavier valve springs to prevent valve float with the higher rpm. What max rpm will this safely run?
What length was the 3/8” bolt you used to plug gov arm hole?
Ben, hammer home a piece of short round towelling rod or use a length and cut it off after.Seal/lube it with some RTV.Simple. Trev New Zealand
Bloody RUclips spellcheck - Dowelling
+Red Beard's Garagen Why not use this motor on the schwinn chopper bike??
I would have to completely redo the frame to fit it. Its more power than we need on it also
So you wouldn't suggest putting a regular motorcycle engine on it or a v twin lawn mower engine? I want to make mine go as fast as it can! :)
Would you what is the distance from block to center of belt on a 780 drive clutch? Still waiting for mine just wanna do mock up for block space check
any reason I can't empower a 185 Honda 3 wheeler with this?
Yeah. I'm going in circles trying to find a flywheel with a ring gear that will fit the 212cc. The electric starter kit for the honda gx200 has a different taper, and will only fit the non-hemi predators.
I checked out the billet flywheels from ARC, but they don't make them with a ring gear and they cost as much as the engine itself.
I'm thinking maybe taking it to a machine shop to have them copy the taper from the old one.
Well the hemi does not have a place to bolt up the starter as well. Thats the reason they don't make an electric start for it. The block was never designed for a electric start.
Actually, this one does. Has a November of '16 build date from what I can see if that means anything. I had read on a lot of forums that folks had to do all kinds of stuff before to make them work. But I was able to install the starter as well as the charging coil with no problem at all. Now it's just that dang flywheel not fitting that's driving me bonkers.
BTW, thanks for the response - and the great videos.
+Johnny I. (Logan) how much is a new crankshaft? That's what I would try.
I think like 60 with the cam
Just a heads up for anyone else looking to install electric start: I found a direct bolt on for the hemi predator. yay!
Kohler 1702530-s
Comes with inner and outer magnets, and original fan and recoil start will go right over it. just have to trim the cover and remove one nub from the back of the fins.
If you disconnect the govener arm from the top of the engine do you have to remove the wheel and j shaft inside the engine?
I've got a spare gx390 . I just can't find a decent priced frame anywhere. Learned a lot from you about kart engines in a few hours of watching.
Thanks for watching man. Try the app let go and try also spelling Kart as Cart
What clutch should I use I have a 420 in the box ready to put in my sons go kart
I'm doing the same thing but for a mini chopper. Would I do the same set up, throttle wise, when using a handlebar style throttle? Like after removing the govner.
Just realized this video is 6yrs old 😮
Cool tank!! Motor looks good with it. Here is a tip you might not know. The valve cover is silver zink plated. Pull it off and buff the zink on it. The outcome will look like chrome and will match the shine on the tank Harbor Freight sells those buff kits with the the compound, you want to use the red rouge one.
Just picked up a 301cc, it has begun
Ive got that same flathead with the red handle, the grip slips real bad when you try to tighten something, sets everything to about 15ftlb
!!Need some help!! Can't find stock info on 420cc jet sizes. Bought a cart with a 420 on it and has a #90 main jet and #25 pilot. Won't stay running and the plug is blacker then heck. I'd like to put stock in or find the right sizes for it. Has a stage 1 kit on it (air filter and header) but need to see if its jetted to big. Thank you!
So unplugging the black wire deactivates the oil sensor if you don't feel like taking the engine apart?
Unplugging the yellow wire will deactivate it
Red Beard's Garage thanks that'll save me a little time.
Can u power a fuel pulse pump on the tube that's already drilled in for vent on a preditor 420cc
do i HAVE to take out the low oil sensor for the governor removal or can i leave it in?
I am having trouble with the governor. When i pull the gas it moves the butterfly barley on the carb sometimes it opens up all the way and it doesn't return back. What can i do.
Air Filter & Performance Jet for the 420 predator is out of stock at gopowersport .would you know another site?
+Alberto Agront they should be back in stock soon.
Alberto Agront try Amazon
How fast is this good for on a two seat go kart would you say?
Do these motors have to use gravity fed tanks or can you use an outboard boat motor tank instead?
I have a mud motor with a predator on my boat.. the header pipe has to go out the back and not to the side. My question is will it run ok with a straight pipe going out of the back? I've seen pipes that curl then go straight back but they're expensive
Sir I'm about to buy 2 coleman rt200 there is nothing on go power sports for this bike is it interchangeable with another model
Red Beard's famous words @18:05 "The most tedious part about tapping a hole is getting it started".
Can you make a vid of this modded motor being used as a mud motor on a John boat. I'm curios to see the performance it will have as a mud motor.
I would if i had a mud boat. We are trying to find one now to build
Id also love to see something like this
I'm curious I see the point of removing the governor but why remove the low oil sensor it could potentially save your engine, sure they are cheap but it beats pushing your go-kart out of the woods if you run out of oil.
+ARednecksLife if you take a left hand turn hard the engine will shut off. You can leave yours in but it is useless on a go kart. It is more for pressure washer and generators, so if they get knocked over it won't blow it up.
Red Beard's Garage I got basically the same engine (9HP) from Princess Auto here in Canada on mini bike, do you got a link where I can find that air filter kit??
I'm definitely doing the governor mod, I'll consider the low oil shutoff.
I have done all the work . Now i cannot get it to idle . Any help would be appreciated
Does the Predator 420 hemi have an electric rev limiter?
No a manual one
If you remove the governor gear, and for some reason, the crank moves and you haven't marked the governor gear before removal, how do you set it back in the proper alignment so the engine is not off balance?
Hi I just purchased a duromax 420cc 16hp and I was needing to find out what size of clutch to buy or where I can find one
I bought everything o the list. and installed it but i still dont get the throttle linkage part. I thought you were going to make a video on that.....
+eldeaquellas13 I did on the Honda gx270
oh ill check it out, thanks for replying!
+eldeaquellas13 no problem man
can u send me the link to the video? im stuck!
On the 420cc Can you upgrade valve springs to the 18lb or more after govenor removal without replacing rod and fly wheel I'd like to get the rpms without spending an arm and a leg
You can upgrade to 50lbs springs but I would eventually change the rod and flywheel. It will last for a good while though stock
Red Beard's Garage but will the 22lb springs fit so I don't hit super high rpms
I'm just trying to avoid valve float with the springs while not having to sweat breaking the rod somewhere in the range of 4500 to 5000 rpms
If I bought a header and a air filter for my 18hp duromax do I have to buy bigger jets for the carb to?
Yes sir
is there an aftermarket cam for these like the 600 series?
I have a 420cc predator and it shuts down like its running out of gas. I have removed the governor and tapped the hole in the top of the motor for the fuel pump hose. I put another plastic walboro pump on and the same thing happens. any suggestions?
Is it dying while idling?
+Red beard's garage do you know of an exhaust like the one you used that would fit a 212cc?
+legitly gaming you pretty much have to make one. There will be some up for sale on go power sports soon. Designed by me. 👍
What rear sprocket should I use with a 420cc Predator and Series 40 torque converter if I want approximately 50-60 mph or is this even possible? Mostly driving on flat surface with 16" tires.
google gear ratio calculator and you can add all you info in to see what would meet your needs.
Red Beard's Garage I did but I we using a 40 series torque converter and didn't know if I just used the teeth on the jackshaft. I'm thinking 10 teeth on the back and 45 on the rear sprocket with 16" tires.
Hey Red Beard, if I remove the governor from a predator 420cc do I need to change out the flywheel and rod to a billet set-up or can I leave it.
Thank you,
Robert
what cam is better for 420cc 308 grind weld or 356 grind weld or can you explain what one does & the other doesnt
How do you put the counter shaft back in? Is there a dot on it to?
why do u have fishing line 20:00 just wondering
I was turning the engine with it
+Red Beard's Garage ok how do you do that
How wide is the 420cc with the gas tank off? Just wondering if I could slip it between the 11" bars of my engine cage.
With a cvt its 19" wide at the widest point
Great presentation, Thank you from all of us.
How come when I set my throttle linkage up like that it’s backwards. When the spring returns it with that set up it will set it wide open
what is the wall thickness of the gas tank?
Can u buy aftermarket stuff for the duromax 18 hp if yes where can I find them
You can get 50lbs valve springs and the performance kit on go power sports for the 420cc will work on it. As far as rod and flywheel I need to take it apart and see what will fit
Thanks.
Just bought a comet 780 clutch for my engine to go with my stock driven clutch on my Yamaha g2 golf cart.. It's gonna be fun. Lol
So what if your thought process behind eliminating the low oil sensor?
When you are on a bumpy trail or take a curve hard it will kill the engine. Any go kart or mini bike you buy will not have a low oil sensor on it for this reason.
As long as you make it a point to check your oil, the sensor isn't good to leave in for a go kart. Sharp turns will momentarily slosh the oil to one side of the case causing the engine to stall, as the oil sensor shuts down the ignition by grounding the coil. It's difficult to win a race if your engine dies every time you make a sharp turn.
If you put it on a go-kart minibike it will die if you turn hard
Do 420cc vertical shaft engines need to be modified for horizontal use in a go kart mine says its got an oil pump on it
Where did you get the red valve cover filter?
Go Power Sports
Plumbers putty works well when tapping the block too
Have you put heavier valve springs in a 420cc predator?
No but I will be in about a week. I have a lot more upgrades for this engine coming in the mail now
sounds good looking forward to see more. I'm in the process on doing mine.
What's the oil capacity to these motors? I have a 270 I'm building up at the moment
Would disconnecting the governor arm from the throttle achieve the same result without getting into the crankcase and removing the governor gear and arm?
I noticed that you are working on a hemi motor. have you found replacement valves for it?
+jason evans yeah I just bought some off of eBay. I bent mine by over reving. Lol
i recently did the same. do you happen to remember the vender you bought from? it is not a standard valve its 33mm
I have 11hp greyhound electric start and im wondering since its a lifman motor what motor do i reference it to for parts?
What size jet do I need just for the air filter upgrade on my 420cc . Thanks
rosscarmichael78 i want to know this as well.
RBG can I flip my 420cc powermore vertical to a horizontal without any problem or do I still need to modify the oils splash stick
whats the limit on rpm's the 420cc pred motor?have a deuce with one in it...how high is my redline if governor romoved?dont wanna blow up my motor