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Dirt Bike Discussions By Brand
Honda MX & Off-Road Dirt Bikes
2005 CR125 jetting
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[QUOTE="steve125, post: 935397, member: 20272"] Lean the pilot jet until your air screw setting is in the 1.5-2.0 out range. A to lean pilot wont hurt the engine, may make it bog but thats it. Once you have the pilot lean enough, you may have to go back an re-set your needle clip position. When ever I change the needle clip position it also effects the jetting close to the pilot range, 1/8 to 1/4 throttle. If the pilot setting is perfect and I change the needle clip position 1 richer, then I usually turn the air screw 1/2 turn leaner(out). Same goes for the needle clip if I go richer, the air screw 1/2 turn leaner. This change(clip position/mixture) is due not to the needles taper but the needles "straight' section that overlaps in the pilots mixture range, and has now been re-positioned(leaner or richer) in the needle jet. Of course the clip position has a larger mixture effect on the 1/4 to 1/2 throttle range. Heres where the needles taper comes into play. So what alot of riders don't know is that when they change the clip position, they are changing 2 mixture settings, not just the one above the pilot mixture range. [/QUOTE]
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Dirt Bike Discussions By Brand
Honda MX & Off-Road Dirt Bikes
2005 CR125 jetting
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