View Full Version : Jetting Issues Yfz450
4STROKYAMAHA
12-22-2007, 09:08 PM
I Have A 2006 Yfz450 And Just Purchased And Hmf Full System, I Also Have The Cam Mod Done, And A K&n Air Filter Without An Airbox Lid. I Am Located In Pa Not Quite Sure On The Elevation, But I Need To Know What Pilot , Main, Have A Dyno Jet Adjustable Needle What Clip It Should Be On, And Also How Many Turn For The Fuel Mixture Screw. Any Help Would Be Much Appreciated!
Thanks
motoz/HMF
12-24-2007, 08:05 AM
Follow the installation instructions in the dynojet kit.
Pilot 45~48
Fuel screw to highest smoothest idle.
Main (OEM jet) 165~175
I Have A 2006 Yfz450 And Just Purchased And Hmf Full System, I Also Have The Cam Mod Done, And A K&n Air Filter Without An Airbox Lid. I Am Located In Pa Not Quite Sure On The Elevation, But I Need To Know What Pilot , Main, Have A Dyno Jet Adjustable Needle What Clip It Should Be On, And Also How Many Turn For The Fuel Mixture Screw. Any Help Would Be Much Appreciated!
Thanks
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