Chinese 125cc

[Notallthere]

Hello all

I have been given a Chinese 125cc ATV. It has come with a few issues, The main one I am scratching my head with is the starter is not spinning the engine properly but ok with no spark plug. I have changed the started with no change to the slow turn over. It's not the battery but the power lead to the starter does get hot. Any advice so I can get away from throwing parts at it.

Cheers all

[davefrombc]

Try using a jumper cable directly from the battery to the starter to see if that spins it over faster. The wires from the starter solenoid to the starter should not be getting hot if the starter is not dragging.  They may be too small to deliver proper voltage  and current to the starter.  If it spins the motor over with the jumper cable then  change out the starter wires for heavier ones. If there is no difference then you need to  look for why the starter is dragging.

 

[jftucker1981]

Dont buy chinese

[jftucker1981]

Dont buy chinese

[Notallthere]

1 hour ago, jftucker1981 said:

Dont buy chinese

If I could afford anything else I wouldn't 

 

[Wattson]

Ditto 

[gatorschevy]

it was free and when he gets it to run then trade it for something else

[horopel258]

Nice

Sent from my SM-G965U using Tapatalk

[Squily]

Check wires are thick enough to allow current through. Might be dirty/corroded connectors. Jump-starting at the starter itself is good way to bypass the wiring- if it's slow there, then the problem is likely in the starter or maybe the engine has too much drag- how sure are you the crank is 'loose'. Have you tried winding the engine over without the spark plug in it?

 

[Notallthere]

Hi Squily Than you for your reply. New starter, new head and new plug. It's better since the head went on but when it fires it stops the engine dead with a clunk. The valve aren't hitting and it spins over really well but with the plug in it does struggle. Even with a car battery hooked up (Strange or what).

[WillrogersII]

could be a grounding issue on the positive side of the cable to the starter. or could have a short. like one post said try using battery cables straight to the solenoid.