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Old April 9th, 2013, 04:27 PM   #159
mgentz
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Name: ...
Location: WI
Join Date: Dec 2011

Motorcycle(s): 250R (street), 250R (dirt)

Posts: A lot.
Quote:
Originally Posted by Racer x View Post
Are you doing anything with the timing? 108 Keihn will be lean. Or you will be making 29 hp
Stock timing at first. I have a jettingpro and will tune it after break in.

I was running 95 mains before and they were about perfect. I think people fall into over jetting the 250. What do you suggest I start with?

I talked to marc at fp and he kind of helped but since he has no experience in this area he said start here and tune from there.
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