2003 yz 125 problem

[Bluerider1999125]

Exact thing happened to my bike only there were chunks of piston gone, reed valve pin loose, and cylinder needs rechromonized...

[buddydog166]

Sick bike

[bigfoot034]

PROBLEM SOLVED took the whole bike apart turns out the cylinder flaked and there was some dirt in the carb regrease the top end gasket replace the piston and piston ring and replated the cylinder it flaked right on the brigde for the exhuast port she runs great now thanks for the input if you have any issues you need help with just message me may be able to help

[125rideryz]

Try cleaning the carb ,check reads and if you have spark than your good as far as the stator goes so it would be in the motor

[blkout15]

most likely your top or bottom end , i hear 20 hours for doing top ends , but if you dont race or anything top ends can go longer , only way you'll know is to open it up.

mine bogged out in 5th & never started again , turned out to be my bottom end bearings locked up .

[justinyoface911]

same thing is happening to an 06 yz125 i just bought today ): im gonna try puttin in fresh gas or somethin. but mine is soooo hard to start and idk y! any tips?

[shift4life125]

@justinyoface911 pistons gone

[justinyoface911]

@shift4life125 no it was the airbox. filled with mud and bad air filter

[shift4life125]

@justinyoface911 your piston is prolly gone now! cause if you sucked any of that mud it ..its prolly scored

[justinyoface911]

@shift4life125 haha nope (: pistons fine!