So I retarded the exhaust cam a tooth and ground down the decomp pin about 1mm/ .040 in a few weeks ago .
Notice I said "about" , well apparently I went to far. I ground down to .040 and then rounded/polished it ,
which then measured .049 . Oh well I tried it any way , the extra power is nice however it became damn near
impossible to start because the decomp was not right.
I put back in the other stock exhaust cam I have and it starts super easy again.
I screwed up this mod and should have just ponied up the $180 for the YZ cam .
you can get a cam off Ebay for way less than 180. I got one for like 112 brand new. The bike fires up fine on the E start you just have to give it a hair of gas at the right time.