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Dirt Bike Brands - Other
Tuning Info Req.
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[QUOTE="skipn8r, post: 982211, member: 52414"] I keep on thinking of things to say after I post. The off-idle to 1/3 throttle range is affected by several adjustments, including air screw, slow jet, needle dimensions and clip position, and slide cutaway. The symptoms you describe suggest either too large of a slow jet or an improperly adjusted air screw. I'd suggest playing with the air screw and see what happens. With the bike off, turn the air screw all the way in and count how many turns until it lightly seats; write down that number to go back to if you get confused. Then back it out to 1.5 turns out, crank the bike and get it to normal operating temp. With the bike idling (increase the idle speed if necessary), slowly turn the air screw both in and out looking for highest idle and best engine response. If you get best idle and response at less than 1 turn out, you need a larger slow jet; if at more than 2.5 turns out, you need a smaller slow jet. A couple of web sites that break down the function of carb systems are: [URL=http://www.duncanracing.com/techfaq/Tech_keihin-carburetion-jetting.phtml]http://www.duncanracing.com/techfaq/Tech_keihin-carburetion-jetting.phtml[/URL] [URL=http://www.dirtrider.net/justkdx/printjetneedles.html]http://www.dirtrider.net/justkdx/printjetneedles.html[/URL] [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
Tuning Info Req.
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