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Carburetor Adjustments & Tuning Tips
118 Adjustments for Competition
Optional Muffler Settings
Your CRF dose not conform to AMA noise
emission regulation for 2012 year.
If you use optional AMA noise emission
regulation conformed muffler, you should change
the carburetor settings.
Adjustment
Pilot screw opening
Slow jet
Jet needle
Needle clip position
Main jet
Settings
1 3/4 turns out
#38
NMQT
3rd groove
#132
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