I'll call BS on that!!! I had a 2001 yz250f and only put one top end in it during the 3 years I had it and rode 2-3 times a week!
and who cares what bike the guy rides... I would like to know some info on that motor. This is the first I've heard of it.
There is no fuse inside the cdi box. What brand are you using? I havent heard of any problems with ANY cdi's. Make sure the ground is good in the wiring harness... a bad ground could possibly cuase a voltage spike that would fry some of the curcuitry.
I have two of them... they're amazing bikes! I dont care for the stock carbon looking plastics, but that can be changed easily! The motor is extremely reliable, the suspension works great after its setup correctly (the shock has way too much preload from factory). There are tons of options...
dudes... ikts an air cooled engine! of coarse its going to get HOT... hotter than Hell!!!!!! If you cant hold your hand on the engine after its been running a while, ITS NORMAL!!!! You have 2000 degree temps inside the engine and that gets transfered to the aluminum,and then goes out to the...