Thread: Jetting 101
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Old 13-06-2007
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Keg Keg is offline
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Join Date: Apr 2002
Location: 2 Stroke Town
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ADJUSTING YOUR IDLE MIXTURE - 2 STROKES

Two strokes have a brass AIR SCREW adjuster on the left side of the carb, towards the airbox low on the carb.

If you turn this outward (anti-clockwise) it will lean up your idle and lower throttle positions.

If you turn it inwards it will richen up your idle and lower throttle positions.

SETTING IT
- If your bike feels slow reving down low or splutters and won't rev clean off the bottom, chances are the air screw is set too rich. Wind it out 1/4 of a turn at a time until it revs clean.

- If the bike idle hovers or you can not get it too idle even when you wind the idle screw (usually a black knob in the centre of the carb on the left side) all the way in, you could be too lean. Wind the air screw inwards.

AIR SCREW SETTING IS USUALLY ABOUT 1 1/2 to 2 1/2 turns out.
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Last edited by Keg; 13-06-2007 at 05:17 PM.
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