Ok my bike keeps Breaking the timing tentioner!! I mean i just broke again today and it is the seound brand new one i have put on! its breaking the sprink inside of the tentioner.. i cant figure it out! what should i do? i have never ever herd of anything like this happeneing! its on a 250x.

80mm big bore kit
12 1/2:1 compression
stage 1 MX port and polish
proformance valves w/springs
New timing chain
bigger intake
bigger exhaust outtake
bigger valves
proformance clutch
34mm mikuni flatslide
uni filter
Proformance Cam
weisco piston
new cam sprocket


I think thats all for the engine for now if theres more i will let you know.