maybe yamaha has some bad CDI's in some bikes and that is why no matter how some of u

just a thought ....

what do you guys think...

makes sence how one bike run great and the other foul and fouls and fouls...

It would also explain why some start easier than others.

There are bound to be a few out there. Have you had yours checked or do you know someone who would let you try theirs?

my cousin has a 99 yz400, I'll try his...

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