125cc Engine Repair Pitbike Restoration

[@fuzzygokoss]

This is the most instructional video with no narration I've ever seen

[@MultiOllie13]

mate this video just saved my engine!! thanks

[@kegankaszuba]

Thanks bud, my engine did the same shit. You've given me newly found confidence in this simple task for any beginning mech

[@MrLuket1981]

problem, taking mine apart and as i turned engine over a small spring and small metal cylinder fell out. it fits snug in the centre of the clutch but not sure if it goes there what u think

[@chrisreid4310]

is there not a spring and a pin that goes in the bearing on the clutch before you put the cover on??

[@mtbridingog9083]

Chris Reid yes there is

[@RussFedorov]

what is that hose sticking out of the engine at 0:02?? and what do i do with it?

[@bg307]

Why does my engine run only without the top head/camshaft valves? Once I put the timing chain on top head it won't turn over.

[@SuperTallis1]

That was a great help I'm ready to build one now the Only thing I didn't get is how to set the cam timing 😁

[@iangrogan5261]

+Monique Gilmour you align the "T" mark on the ignition with the notch in the crank case. Once that is aligned, you take your cam sprocket and align the dot on it with the notch in the cylinder head.

[@alexisbloodrage5412]

I have a question. I have a Taotao with the 125cc motor with the kick start. But it wont crank up when I try and kick start it. The motor runs fine but it just wont start like at all unless I take a running start in first gear. Could it be the starter thats messed up in if so how do I tell if its fried?

[@david123457cool]

do you see the little pipe coming out of the top where does it conect to if you or any one else noes i would be greatfull thanks

[@mtbridingog9083]

aye if i take the whole enegine apart and put it ib gas and buy new rings and seals do u think it would fire up if i put it back together

[@chamjiskykhan8252]

Excellent video. Subscribed to your channel. I have an issue with my timing chain its creating too much knocking noise and is a bit loose. I m suspecting something is wrong with its cam chain tensioner. @11:47 when you were assembling it by inserting the rod you the holes in the rod were in one particular direction can they be in any direction? Or is there any notch in it to avoid incorrect instalation? Any video on just troubleshooting loose cam chain?

[@ChiefyBeats]

there is no rods in these engines its over head cam it still might be valve knock did you adjust your valves since?

[@MrRoYkEyEuUu1]

can you pleas show in a video where al the washers should be in the engine . and olso when i kik the rotor set dont rotate ? can you help me with this problem ??

[@Cheesychicken98]

Nice video! Hey can you please do a video about how to change the gears step by step starting from taking the motor off the bike?

[@rickv.oosterhout9163]

Did you apply the rubber o-rings on the cilinder and head?

[@samlegal2]

very good hoping to do this with my lifan there pretty much the same engines. did u get the bike going again?

[@mrengine970]

How is the clutch connected to the cable

[@brotherkhan2885]

How do u tame the gears when rebuilding ?

[@chamjiskykhan8252]

Hi i also have similar engine. I had problems with oil flow. There was no oil flowing to the intake rocker arm. When I opened the engine the oil screen was totally clogged up. While I cleaned it I checked the oil pump sprocket on main Crank shaft as shown in @2:05. This sprocket is rotating both clock wise and anti clock wise. I don't know when crankshaft is rotating whether and how this shaft rotates. The metal sprocket on crankshaft that drives the plastic sprocket of oil pump is free. There is nothing to bind it to the rotating of main crankshaft. Engine is dj 154fmi

[@mtbridingog9083]

Chamjisky Khan I think you need a new engine case broths because it's not supposed to move counterclockwise only clockwise now don't get me wrong that is really the only thing that's running your motor like the can shaft inside and the cam timing if it's set incorrectly you will get the oil problem you have because everything in the engine depends on each other hopefully I kind of help you bro sorry if I was just talking crap but if your saying it moves back its fine while not driving or operating it you should be good but that oil pump is serious because If no oil is moving around the lower back of the engine it can fry the engine pretty fast so what I would do is call the company that made your bike and tell them what is going on or call your local dirt bike shop

[@chamjiskykhan8252]

Thanks I figured it out. Once the clutch basket is tightened then it won't move. And it will only move with crank shaft.

[@mtbridingog9083]

Chamjisky Khan huh

[@mtbridingog9083]

Chamjisky Khan oh lol

[@mtbridingog9083]

Chamjisky Khan no bro

[@iancharnley7296]

I've got a stomp 125 engine in bits, I'm just missing my clutch? Is it the same clutch as on the video??

[@nickr529]

does the power band help when you torque your bolts

[@Privadx]

+Nick Ranthum yes

[@codycrumb2532]

Where can I get the gears for a 125 Chinese loncin pitbike manual kickstart plz help!!

[@Fireball7285]

hey i took my 110cc through a creek as in my profile pic and after that the engine is knoking any ideas i think its the rods maybe???

[@patweng3152]

what is old broken gears for? can it be not putted on?

[@devolvedspud6101]

Pat Weng If it's broken it's not going to work is it? That's why he was replacing the gears, bless.

[@pakistansolarsystems3648]

Sir many apney hero 72cc my bore karkey 150cc ka piston lagaya hi.ab 80speed tak gate ha. Or speed increase karney kaleya kaya karoon. Place replay.

[@dbdb4274]

Would u have a idea why my py 90 there smoke coming from my side case just up were the gears are

[@Fireball7285]

yes it was after when i was at high speeds then i heard it and felt it i had recently adjusted the valves about 1 month early they we WAY OUT of adjustment to where i had to push start it about a week after they were already out of adjustment again. so i dont know what is wrong with it maybe it is even the cylinder hitting the wall?

[@Johnny42069]

is it on start device rod and washer?

[@elijahwilson410]

change the oil on my pitbike now it won't start sounds like needs to bill compression how do I fix the problem

[@Zi9makin9]

Whats that black part at 2:49? what does it do??

[@dennnaann88]

Daradue sandstorm

[@markunit72]

Zi9makin9 did you ever figure out what it is called?

[@Zi9makin9]

markunit72 Nope :/

[@markunit72]

Zi9makin9 my engine is missing it, and im like what it is called...

[@Zi9makin9]

Ah man that sux! I just wanted to know about the peice if I´m gonna disassemble my engine sometime

[@tabejawruk6585]

how many 5:24 clutch lamels?

[@daviespana5089]

Hi. I really liked your video, thanks for sharing your knowledge and experiences. Nestitary help to know where to get the tightening tool for the crankshaft nut, in the part of the clutches. Thanks greetings.

[@alexsbikesandmotors]

the crank breather? it doesn't get connected to anything. It just vents

[@mtbridingog9083]

How to set the kick stator to be in the correct postion??

[@garyagunias2561]

hi what is the proper position of piston ring.

[@gtxongate4349]

what type of motor is this ? I've just gotten one but don't know what brand

[@destinhook3826]

Can someone please help me find a big bore kit for a 125cc Coolster pit bike?? I can't find one and i'm really wanting to go to 150cc

[@Goodtimesbadluckv2]

yo i have the same, probably best off getting a 140cc with oil cooler and swapping that in

[@darrenpaulmaddox6781]

Perfect. Its all about an engine no crap talk about what's to come. Is your gearbox 1 down 3 up cos its very similar to mine only mines 110..?

[@gemmabejer459]

What

[@ryanlucero1877]

Where can i buy that left crank case i need one for my bike

[@corvettecraver]

Hey, I recently changed out my left crankcase due to a crack and then when I pieces it together I Realized that my clutch didn't have full movement (it could move but lost 75 percent of travel). I didn't put oil in it yet just to see what you guys think. Could it be the lack of oil screwing up the wet clutch travel or something else? Thanks

[@MedwayRiding]

No it's a fitment issue

[@toddwalton-ryder2167]

Rebuilt my engine very similar to this one and the piston goes up and down if I spin the flywheel by hand but my kick starter is jammed any suggestions?

[@ichig01000]

hi,can i ask if i change my carburetor from a 125rs honda i change it to 155tmx honda carburetor,can it be fit to to motor i have?

[@mikeodell13]

Could someone please give me a link or at least at tip to were i can find one of these gearshift drums?? I can't find one anywhere!! Thank you!!!

[@mAdAsZaC]

take the pipe and run it to the bottom of the engine where it will not get too hot, its a overflow or breather for the crank case oil

[@alsnoop132]

can you put a 200cc cylinder body and head on a 125cc ATV engine

[@Celicaandx19]

Where can you buy the gasket set at?

[@phyllismelton1016]

did you find were to get part I need to no my self.

[@phoneczech]

Please how many teeth timing chain and if he would be a service manual

[@Fireball7285]

that i think would be it because i always had problems with the valves i will see what i can do man thanks for the reply and info :)

[@GOTSWAG110]

I have a put bike but its hard to kick I don't know what's wrong. Do u know what's wrong?

[@ayazafg]

nice video man i love your style your super talented

[@Johnsmith-kk2jz]

Awesome video,how did you learn to do all this?

[@valentinpopescu3714]

i have a 140cc lifan engine, when i put all the gearbox parts togheter its spins freely, when i turn the selector and try to spin the gearbox, they make a bad sound and one of the sprocket si moving up and down, anyone know why ?

[@williammeers]

What is the name of the part at 5:50?

[@ChiefyBeats]

The piston has to be at TDC then mark the case and flywheen where TDC is then the cam gear should have a mark that should line up to the left 9 Oclock if you will and thats it i think

[@Godlyshield1225]

Hey you need too adjust your clutch cable,your bike hasn't lost any compression its just your clutch being pulled it too much

[@marcomaestre2314]

good video tho, after few times watching this vid I finally have a question is your or was your engine 1 down 3 up?

[@STRYKER275production]

what's the name of the gold circle thing

[@This0is0pointless]

flywheel/magneto

[@justinridley2414]

Yo my 125 pitbike just died making noise in engine kick start locked now free no copreshion plz help

[@iTEltScHEr]

2 or 4stroke?

[@iamthetinkerman]

***** yeh... i know pal

[@devolvedspud6101]

You're shitting me, right?

[@goochi2121]

if you cant find timing marks what i do is turn your crank untill piston is at top dead center l ready to induct and mark your fly wheel turn your cam shaft untill it is just about open the inlet valve when you put the chain back on it should be about there give or take a tooth but as the piston drops the inlet should be open

[@mtbridingog9083]

the clutch plates and clutch is on the right side correct if I take off the right side cover is everything in place meaning if I take it off nothing will move out off place and break because my clutch plates are either sticking or burnt up I can't shift with my hand clutch it's useless I was cruising doing 50 MPH yesterday and I came to a red light and the bike would shift down or stop so I was pissed I had to walk home from there were it happened it was about a 5 or 6 mile walk home because I didn't want to do more damage than it already has done to the clutch itself

[@This0is0pointless]

I have a black washer that says "side out" that I'm pretty sure came from the clutch side but i can't for the life of me figure out where exactly it goes

[@micromachine7954]

+This0is0pointless Under the clutch nut, its a preload washer.

[@patweng3152]

+Ron Garvin hey sir can i ask. what are the things that can be widrawn from the engine and still make it start or be used

[@micromachine7954]

I'm not sure what you mean? The crf50 style engine is one of the best ever built but its a very basic design and everything is made to work together as a unit.

[@ChiefyBeats]

put the small cylinder in the clutch then the spring might be to late but its something.

[@goochi2121]

check compresion if its good will be valve stem seal if its bad it will be piston rings

[@andremixon8273]

Can you help me with my 125cc engine I'm new to this

[@980username]

Yo. That power band mate

[@junledda]

nice and great video very informative

[@kikoneviem9504]

What engine Name ? Lifan ?

[@gtxongate4349]

did you find out I need to know too

[@gtxongate4349]

did you find out I need to know too

[@saadmayo1156]

m saad mayo

[@mtbridingog9083]

Kiko Neviem yes it's a lifan

[@mtbridingog9083]

Kiko Neviem all Chinese pit bikes have a lifan engine they all are the same for the ssr, Apollo, roketa, bbr , and so on in the 125cc I'm not sure about anything above it but for the 125 cc then yea they all use the lifan engine they may have different companies that manufacture the engines them selves but they only engrave there companies name into the the cylinder side cover or the right or left side cover so that it is more nice looking but a lifan engine is a lifan engine they all work the same

[@mtbridingog9083]

You forgot the timing chain and the gear to drive the valves

[@devolvedspud6101]

Mtb Ridingog Look from 13:14 approx. He seems to do it arse about face, but the cam chain etc. is in there.

[@devolvedspud6101]

Oops, it's from 8:29; sorry about that.

[@danburstrom9145]

Thanks you. I really appreciate this video:)

[@micromachine7954]

YOU NEED A TORQUE WRENCH.

[@thicok4555]

Yes

[@bdbdbhdbdbdnfjfh5053]

Ron Garvin

[@brentreed626]

do you know what torque a 125 engine case needs?

[@micromachine7954]

Brent Reed Its not much. I can't remember off hand but its something like 80 INCH lbs.

[@Croz.]

Amazing video thank you.

[@mazallawa]

you keep your gloves at the beach? joke :) very good video thank you

[@frederichbonilla7327]

La arandela de cobre va en el espárrago del aceite

[@daveforce4010]

Good job!!! Thanks

[@jjgolff]

I've been told that this engine is similar to Honda The engine of my bike is Chinese and let me know. some equivalence (brand) Honda .....

[@logannewsome570]

There honda clones

[@logannewsome570]

There honda clones

[@MalcoDude]

Jeez that's put me off re building my 125!!!?

[@usapatriotAK47-HollyBaglioHTV]

NICE WORK,,,,,,,

[@GWEKMEW]

Hi my bike like the one in this video has the same motor and it wont start someone please help me! :/

[@sumitjaipal8040]

Nice video thanks

[@MrViegar0]

Wanna rebuild my lump of bolts

[@artiom991]

It is not assembled correctly

[@laurentk2033]

some vidéos says F mark and another says T mark... Help me please :)

[@devolvedspud6101]

Keyizh e T=Top dead centre. Piston at top of its travel. F=Fire. Fire the spark through the plug. Easy, eh?

[@Varos4545]

gasket was sticked to cylinder

[@Kristinnarnargunnarsson]

thank you man :D

[@MrLuket1981]

ok thanks

[@pa3ki]

Thank You 😋

[@romyaradora8276]

nice

[@Xxpoison99xX]

Don't pull the clutch in lol

[@gunnyhaonam1989]

good

[@TheSoloGuy1]

Skills

[@zaheermemon6248]

😊

[@saadmayo1156]

m saad mayo

[@lam_ngoc]

khoai tayyyy

[@lazharmazouz5245]

Goood

[@karansingh2044]

karan generater

[@cesarcontreras1782]

need to buy a 125 engine call 915 262 2764

[@mtbridingog9083]

Nvm lol

[@williammeers]

What is the name of the part at 5:50?