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Dirt Bike Brands - Other
2 stroke questions
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[QUOTE="MWEISSEN, post: 669923, member: 16873"] Back to our friend's original questions.... It sounds to me like the bike is just too rich. Smoking is the first indicator. The second indicator is the power falling off after warming up. I'd try 40:1 gas:oil. That alone will lean out your motor a little. However, jetting is most likely mandatory. I'm not real 2 stroke expert either, since my last one was back in the eighties, and I've been on 4 strokes for awhile. I still have learned a lot the past couple years, and find between the '03 Honda CR250 and the '02 KTM 250, the KTM is quite finicky in terms of jetting. My best jetting combo at 70 degrees and 5-800 ft above sea level has been an NOZG needle on #2, a 172 main and a 45 pilot. I use James Dean's jetting spreadsheet to compensate for altitude and temp changes and use this setting as a baseline for adjustment. Hope this helps! [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
2 stroke questions
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