We Did a Full Engine Swap on the Coleman AT125UT and it Was a HUGE Upgrade!

We swapped a 125cc engine into the Coleman AT125UT Four wheeler and it has 3 forward speeds and reverse! Same upgrade would fit in the TaoTao 125cc. ATV.

[@arthuralzamora7331]

Thanks so much for your video, I thought wow this would be a great Xmas gift for grandkids. Thank you for saving from so much grief!

[@PeeksPeakHobbyHomestead]

Thanks for commenting. Maybe a used name brand four wheeler would be a good alternative. That’s what I wish I would have found. My son loves to ride so I’m glad he has one. This one is just a lot of work to keep it operational…. Good luck!

[@MrJeffacide]

Thank you for the updates! Congrats!

[@PeeksPeakHobbyHomestead]

Thanks for watching!

[@BrokeGambler]

FYI. It’s junk oil. Even the Chinese manufacturers say not to run with that oil for shipping only. Same thing with a brand new Coleman. Assembly directions say the same thing.

[@anthonymacaluso1488]

I couldnt agree with this more

[@PaleHorseOutdoors]

Hi Lucas! Excellent job on the swap. We're looking to upgrade my son's Coleman gokart with a Predator 212. I think you've inspired me to pull the plug on that soon! Thanks for sharing! - David

[@PeeksPeakHobbyHomestead]

Awesome! That should be a pretty nice upgrade! Good luck!

[@PaleHorseOutdoors]

@@PeeksPeakHobbyHomestead thanks!

[@christopherhensley2795]

Any update on this? Did you try that?

[@marc19D]

Just did this same swap on a 125ex Coleman and it's a monster now !! Great video about to buy another engine and do the 125ut next

[@PeeksPeakHobbyHomestead]

Good deal! The gears make all the difference!

[@njclosetmonsters2048]

Dude. Your an absolute legend for this!

[@PeeksPeakHobbyHomestead]

Lol, thanks!

[@doobyboy21]

The happy camper dance at 11:37 ! 🤣 I did the same as you did 2 years ago when we where on the Covid-19 lock down... I only had the 110 cc engine with no reverse then added the 125 cc engine with Forward, neutral, and reverse... My kids didn't feel like shifting ! It was a cool little project though ! Like you it was soaking in oil when I got it out the box... I put the videos here on KZbin if you ever want to check it out ! Great job man ! 😀

[@PeeksPeakHobbyHomestead]

Nice! I appreciate the comment! I’ll go check yours out!

[@thethiefonthecross9092]

I love riding ATVs especially with my family

[@PeeksPeakHobbyHomestead]

Me too! I love doing whatever I’m doing with my family, but yes, ATVs are great!

[@DirtyDiezel]

I had a 3fwd 1 rev 125cc engine in my last chinese quad, sold it to a friend for his sons bday. Big mistake was buying a 1fwd and 1rev geared 125cc chinese quad, super crappy takeoff and no top speed. I am buying the 3fwd 1rev 125cc engine to replace it and I cant wait it will be back in business!! I cant imagine riding any trail with that crappy 1 fwd gear ratio! you would have to back up steep hills lol, rev is the only low strong torque gear! Thanks for sharing

[@HuserHelpers]

Nice work Lucas

[@PeeksPeakHobbyHomestead]

Thanks, Jason!

[@Person14011]

Good video. I just did the same. The wiring was different colors and the harnesses were different so I swapped the charging system from old motor to new motor. I’m hoping the semi auto lasts longer with less issues. (Old magneto was 3/4 wire and the new magneto was 5 wire. Easier fix using the old parts. Using an Xpro 125 now. Thinking 200/250 with clutch next.

[@PeeksPeakHobbyHomestead]

Nice work!

[@steelcityperformancesaws]

Right on guys glad it’s all fixed up for him! I’ll do the same upgrade to my boys if his ever quits on him. I can tell how much better it is with the three speed compared to the single gear like mine and your old one

[@PeeksPeakHobbyHomestead]

Caden is loving it. It pulls steep hills fine now, but still has the top end speed.

[@steelcityperformancesaws]

@@PeeksPeakHobbyHomestead that’s perfect so glad it worked out for the better! Im going to make a saw mill video shortly here and get it uploaded be sure to check it out if you get a chance. Turning a bunch of retired Douglas fur poles in to beams for a pole barn!

[@PeeksPeakHobbyHomestead]

Right on! I would love to have a sawmill. I can’t wait to watch.

[@dustinsegers4534]

It's a shame you received this kind of treatment from Coleman. I have two Tao ATVs, and yes, they had problems out of the box, but after dialing them in, they have been bulletproof. It is especially rare that that motor failed. While the cheaper Chinese ATVs & motorcycles have their problems, their motors rarely fail. Good video!

[@PeeksPeakHobbyHomestead]

Thanks, I’m glad to hear your experience. I am hoping this motor lasts a while. That gives me some hope. I appreciate you watching!

[@Logan.L83]

Yes sir great job

[@PeeksPeakHobbyHomestead]

Thank you! Caden is very excited!

[@christopherroknefski]

Thanks!

[@PeeksPeakHobbyHomestead]

Thank you! Best of luck.

[@chrisminter7776]

can you post a link to that engine you bought? Thanks and great video!

[@waynemccarter7027]

Great job! Getting ready to upgrade my grand daughters Coleman atv. Same thing, blew out the gears at 3 months. Your video is a great help! Thanks Btw, what is the rolling chassis you have in your garage? I rebuild old Jeep cjs, looks like you have similar interests. Keep up the good work!!!

[@PeeksPeakHobbyHomestead]

I appreciate you watching! Good luck on your swap. It is a pretty straightforward process. The old chassis is a 1971 GMC C15. We are getting back to work on that now that we have our new shop finished.

[@waynemccarter7027]

Keep us updated on the progress! Thanks again!

[@justadadandhisboys8560]

I'm sorry I must have missed the engine model you went with.

[@OrangeismyNewGreen]

Great job Lucas, I think you have a better bike now with the new motor, plus you saved $450 instead of paying $750 to Coleman for another crappy motor. Shame on you Coleman. I noticed the pond on your drive, how’s the water level doing? Have great week Lucas 🙂🙋🏼‍♂️👍🏻

[@PeeksPeakHobbyHomestead]

Thanks, Luc! Pond level is iffy on whether it has improved. It has still gone down. Maybe a couple inches over a week. I’m going to give it some time before I do a video update to be sure what the results are…

[@jordanfuger1132]

So I had a centrifugal clutch in that atv, would you recommend a different motor then the one you have

[@OscarG-2020]

I really love this video you just make my boy so happy I’m getting the same exact motor please see if you can add the link on the eBay motor so I can get the same one I really like all your videos keep it up 👍🏼 thanks 🙏🏼

[@PeeksPeakHobbyHomestead]

I am glad and hope that you have found it helpful. Here is a current eBay link. www.ebay.com/itm/125cc-4-stroke-ATV-Engine-Motor-Semi-Auto-w-Reverse-Electric-Start-/143714810707?mkcid=16&mkevt=1&_trksid=p2349624.m2548.l6249&mkrid=711-127632-2357-0

[@OscarG-2020]

@@PeeksPeakHobbyHomestead ty sir 👍🏼🙏🏼

[@PeeksPeakHobbyHomestead]

@@OscarG-2020 You are welcome!

[@jdemcee7904]

​@@PeeksPeakHobbyHomestead please pin your comment with the link

[@thurstonavery6315]

My kids lasted 2 weeks need to get it going my girls love it but my son born to ride yep kids like to ride too

[@PeeksPeakHobbyHomestead]

We finally just sold what was left of ours and got him a dirt bike. The bike is a 20 year old Kawasaki and it starts and runs every time. Haha. 🤷🏼‍♂️

[@Robis_Grigoris]

Just needs a Daytona anima 212 4v

[@AndrewBurtonS-group]

I think you turned it into a Rex 125 my son has one it sounds like that and has the foot shifter it goes good

[@PeeksPeakHobbyHomestead]

That’s cool!

[@hgfvez7749]

Is it possible a 200cc engine fit a 125cc atv ??

[@henkers420]

Definitly change the oil. They put a shitty oil in them just for shipping. Change the oil.

[@PeeksPeakHobbyHomestead]

Yeah, that shipping oil was some strange stuff!

[@christopherphilley4272]

I just done the same engine swap to my kids Coleman. What sensor did you unhook for second and third gear to work?

[@PeeksPeakHobbyHomestead]

The one coming out of the engine case back by the sprocket that has 5 wires. Pink, blue, aqua, purple, and green)

[@PeeksPeakHobbyHomestead]

If you need any more details my email address is on my page info. Contact me and I’ll send pictures…

[@christopherphilley4272]

Ok thank you

[@jamesflanagan3289]

​@@PeeksPeakHobbyHomestead could you also send me pictures of the wiring you did because the wires are different on my engine than the one you got.

[@PeeksPeakHobbyHomestead]

@@jamesflanagan3289 I would but I don’t have the atv anymore.

[@afraz1er]

What color wires did you unplug for the shift indicator?

[@PeeksPeakHobbyHomestead]

I’m sorry, I don’t have the machine anymore and I can’t remember. 🤷🏼‍♂️

[@endlessnameless8181]

What exact engine is this? I bought a used one before looking at videos on it and I got had. I need to do this.

[@PeeksPeakHobbyHomestead]

www.ebay.com/itm/143714810707?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=1VidaUIWRDe&sssrc=2349624&ssuid=PRR1-syWTe-&var=&widget_ver=artemis&media=COPY

[@coyotehill2772]

Wish I saw this before I got my son one. Ours is blowing out oil and nothing from Coleman power sports. Going to be doing the same thing. Is it still working well?

[@PeeksPeakHobbyHomestead]

I’m sorry to hear you had trouble too. Yeah, we are still up and running. I figure this engine is of the same quality as what was in it so don’t expect miracles. Lol. Some last longer than others.

[@coyotehill2772]

@@PeeksPeakHobbyHomestead we got it for my son 4 months ago for his birthday. We now have snow gone so he can ride it and he got a whopping 19 miles or hours on it. Three calls and a email out with nothing back.

[@PeeksPeakHobbyHomestead]

@@coyotehill2772 that’s a shame. I bought mine thinking Coleman would have decent customer service, but they got their money and ran. Pretty sad.

[@Equals488]

Would it be possible to the Exact purchase info for the new motor? My son blew his engine.

[@PeeksPeakHobbyHomestead]

www.ebay.com/itm/125603781404?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=g_NE-0i0RMm&sssrc=4429486&ssuid=PRR1-syWTe-&var=&widget_ver=artemis&media=COPY

[@PeeksPeakHobbyHomestead]

The particular seller I bought from on eBay is gone, but this is essentially the same engine…

[@Kevin-if5um]

Get that helmet on!!

[@yaaaboy3491]

anyone know the valve clearances on the original engine ? Thank you so much for the info!

[@PeeksPeakHobbyHomestead]

I haven’t found a manual, but I did find a Tao sponsored video that said .05mm for both. That might give you a starting point.

[@zanethornton213]

0.4 intake 0.6 exhaust

[@jordanfuger1132]

I just bought this fourwheeler for 500 bucks but its a 125cc EX addition and it's gutless low end. I have to push my son up a hill. Can you recommend to a site where you got your engine? How is the low end torque?

[@PeeksPeakHobbyHomestead]

www.ebay.com/itm/175372725821?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=hi705njpsmi&sssrc=2349624&ssuid=PRR1-syWTe-&var=&widget_ver=artemis&media=COPY I went with the 3 speed with a shifter and the gearing helps the low end a lot! He could easily climb hills in first gear that way.

[@jordanfuger1132]

@@PeeksPeakHobbyHomestead thank you man! It's alot cheaper then I thought.

[@jordanfuger1132]

@@PeeksPeakHobbyHomestead how do you know it's a 3speed? I read it but didn't see it anywhere?

[@jordanfuger1132]

@@PeeksPeakHobbyHomestead nvm I found where it's a 3 speed

[@ronfritz3090]

ya I know what your going through I bought 2 Colmans 125-ex. one has 30 miles on it the other has 56 miles on it. They BOTH stop running. I want to do the upgrade like you did but Iam not sure what engine on Ebay you got. Could you please send me the link to that motor. Thanks RON

[@PeeksPeakHobbyHomestead]

Yeah, here is a link to the style I bought. www.ebay.com/itm/364079492139?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=k8jxbx8vtoi&sssrc=2349624&ssuid=PRR1-syWTe-&var=&widget_ver=artemis&media=COPY

[@ronfritz3090]

Hows your new engine running? And is this link for the 3 gears forward and reverse?

[@PeeksPeakHobbyHomestead]

@@ronfritz3090 Yes, it is. We actually sold the ATV not long after I swapped the motor. My son was just too hard on it and I knew it wouldn’t last. We got him a Kawasaki dirt bike… It is a much better fit for him.

[@christopherroknefski]

Big thing I found with these junk Chinese motors is that you have to use super high quality oil (15w40 or better 5w40 full syn diesel oil) because of the tolerances. Did he put the link to the engine in here somewhere? I can’t find it on my phone

[@PeeksPeakHobbyHomestead]

www.ebay.com/itm/285648368549?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=dt6ckX0aRWS&sssrc=4429486&ssuid=PRR1-syWTe-&var=&widget_ver=artemis&media=COPY

[@erikspears4648]

I put a 125 pit bike motor on my Apollo atv 125

[@PeeksPeakHobbyHomestead]

Right on! Is it kick start? I was wondering if one of those might work…

[@jessewhite4515]

Do you know the chain link length and size?

[@PeeksPeakHobbyHomestead]

No idea on length. It is a 428 chain. I just order a long chain and a chain breaker and made one the correct length.

[@theofficialredneck1603]

Can I haven a me of engine and where you bought it would love to get one for my Coleman at125ex sport

[@PeeksPeakHobbyHomestead]

Here is a current eBay link for the one we bought: www.ebay.com/itm/143714810707?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=1VidaUIWRDe&sssrc=2349624&ssuid=PRR1-syWTe-&var=&widget_ver=artemis&media=COPY

[@ryannbellshow4477]

What was the name of the motor on eBay again?

[@PeeksPeakHobbyHomestead]

www.ebay.com/itm/125cc-4-stroke-ATV-Engine-Motor-Semi-Auto-w-Reverse-Electric-Start-/143714810707?mkcid=16&mkevt=1&_trksid=p2349624.m46890.l49286&mkrid=711-127632-2357-0

[@saravanguilder3366]

What is the name of the engine you got off ebay?

[@PeeksPeakHobbyHomestead]

www.ebay.com/itm/134033789100?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=d9yesg1lr2m&sssrc=2349624&ssuid=PRR1-syWTe-&var=&widget_ver=artemis&media=COPY

[@coltonupchurch4368]

Bro we got one to day and it sucks I road it 10 feet and it stuck full throttle we are takeing it back 😫

[@PeeksPeakHobbyHomestead]

Hate to hear that. Hope you find a decent alternative!

[@njclosetmonsters2048]

Can I get a link for that motor?

[@PeeksPeakHobbyHomestead]

www.ebay.com/itm/125cc-4-Stroke-Single-Cylinder-ATV-Engine-Motor-w-Reverse-Electric-Start-USA-/393261847971?mkcid=16&mkevt=1&_trksid=p2349624.m2548.l6249&mkrid=711-127632-2357-0

[@jonathanaguilar822]

What website did you get this off ?

[@PeeksPeakHobbyHomestead]

www.ebay.com/itm/125cc-4-Stroke-Single-Cylinder-ATV-Engine-Motor-w-Reverse-Electric-Start-USA-/393261847971?mkcid=16&mkevt=1&_trksid=p2349624.m2548.l6249&mkrid=711-127632-2357-0

[@jonathanaguilar822]

@@PeeksPeakHobbyHomestead are you happy with this option?

[@PeeksPeakHobbyHomestead]

So he’s only been riding it a week, but he loves it. I would say it can’t be any less dependable than the original and the shifting gears in my opinion makes it way way better…. It would depend on the application I guess. If your child is ready and able to do the shifting and/or if you need to be able to pull hills then for sure it is an upgrade.

[@jonathanaguilar822]

Is your atv still running on this motor ?

[@PeeksPeakHobbyHomestead]

@@jonathanaguilar822 Sure is. He’s been riding it pretty hard and it is hanging in there so far!

[@Yn5luhd]

What engine is that?

[@PeeksPeakHobbyHomestead]

It’s a 125cc from eBay. It has 3 forward gears, reverse, and electric start…

[@Yn5luhd]

@@PeeksPeakHobbyHomestead dose it have a clutch

[@PeeksPeakHobbyHomestead]

@@Yn5luhd nope, it is just a foot shifter that you switch without clutching…

[@t4thfavor1212]

That oil is shipping oil, don't run it with that or you'll only be running it for a few days.

[@PeeksPeakHobbyHomestead]

Yeah, we started it in that oil and after giving it some thought decided it was probably junk oil. I didn’t really know that though!

[@christopherphilley4272]

Can you use the same shifter or do you have to use a foot shifter?

[@PeeksPeakHobbyHomestead]

I am pretty certain that the shift shaft was a little shorter on this engine making it not exactly work with the hand shifter. My son wanted the foot shifter so I just built one that would fit. I’m sure you could modify the hand shifter the same way easy enough. Just keep in mind that with a hand shifter they would have to let go of the handlebars each time they shift gears….

[@christopherphilley4272]

It came with a foot shifter but it’s so close to everything it’s hard to shift

[@PeeksPeakHobbyHomestead]

@@christopherphilley4272 yeah, mine was missing the shifter from the box so I just fabricated one that worked. They ended up sending me one, but it is laying on the shelf…