My jetting is not that hot

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  • Math

Posted May 02, 2005 - 06:31 AM


I tried a new jetting setup this last week end:

50 deg
170 main
4th clip on the needle
48 pilot
1 1/8 out on the screw.
FMF PC4 no insert
air lid removed
YZ timed

Starts 1st kick all the time and idles great
Pulls very very strong (mid to top range power is crazy!)
No back fire

The problem is when I gun the throttle. Doesn't matter what RPM I'm at... If I gun it, even from mid-range rpm, the engine will die if I don't release the throttle.

I can't even pop up wheelies in front of mud holes. :naughty:

Have to say the % of humidity in the air was like 100% but Sylvain's bike did not have that problem.

He will share his set-up with me. We know he has no BK mod done (neither do I) and he does not have this problem so we have to look somewhere else.

Anybody else suggestion would be welcome?

Thanks a lot


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