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2001 cr125 jetting

Joined
Nov 7, 2002
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#1
My buddy has a 01 cr125 that has horrible low end bog and thought maybe somebody would have a suggestion for jetting at 800-1000 ft and 75 degrees. Or could it be the power valve?
 
Joined
Jun 3, 2003
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#2
Well I'm not experienced BY ALL MEANS yet, but since your friend has a jap bike, a Mikuni carb, and lives at 1000' in 75 weather, he is like me except i have a 250.

If it is a jetting problem, then he needs to go leaner on the pilot circuit probably and play w/ the air screw too.
 
Joined
Nov 14, 2000
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#3
Pilot #40
Needle #2171 clip #2
Main 380
Air Screw 1 1/2 turns out
Your bog will be gone