These new Kawis are chewing through cranks.. 

What was that thing with all the metal in it next to the shifter!? Does a 2017 kx450 have that??

ik someone who had the same thing happen at 68 hours took like 4 months to get the crank in

Why it happens?

Yep! Turns out the valves on my 250X may have been part of the problem! The last guy shimmed them waay too tight! It wore put the intake valve cups. So we cant really get accurate shimming tolerances. So its sitting for now. But ill get the cups, shim it, and if it fixes the problem then it was due to poor valve shimming.

Do you know what kind of oil was in this bike? It looks pretty dark like it has 10+ hours on it or was ridden by a pro rider.

What jump pack are you using?

Is that noise normal?

But why??