kx500 transmission help

[kelal9698]

need help just got a used 99 kx500 its been sitting for a while runs good. but i noticed when pushing it in neutral every few feet you get a very light tug from the motor. almost like its in gear but very light and like every 3 feet. I havent changed trans fluid yet. any ideas.
also whats the best gear oil for this bike
thanks

 

[dales298]

I had a similar problem with mine, the masterlink was a little bit too wide to fit trough the chain guide without rubbing. The problem showed up after switching from a standard chain to an O-ring chain.

Dale

 

[Ron2stroke1]

maybe a bent sprocket?

 

[Jasle]

or bent brake rotor.

put the bike on a stand, remove the chain and see if the wheels spin freely? if yes then spin the trans over by hand. does it spin over freely. if yes take a look at the chain.

a rusty chain will also cause this problem. since its been sitting me thinks chain. but also you can rust a rotor and the rust spot will cause a drag. either way its easy to figure out by spinning the wheels. Every 3 feet leads me to believe its not trans though. thats roughly the circumference of the wheel so its happening one every wheel revolution. so sprocket or chain related.

 

[_JOE_]

Try removing the chain and see if goes away.

 

[Jasle]

or bent brake rotor.

put the bike on a stand, remove the chain and see if the wheels spin freely? if yes then spin the trans over by hand. does it spin over freely. if yes take a look at the chain.

deja vu?