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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
Proper throttle response???
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[QUOTE="DougRoost, post: 669728, member: 23019"] Learned from someone who really knows 2 stroke jetting that the best way to do this is to start from bottom and work your way up. AS should be at 2 turns out +/- half turn, else rejet pilot accordingly. Next is the needle, which is the most important since it controls the bulk of the range. I agree that trying a D taper is probably a good idea if you want more hit. Finally is the main jet, which is dependent on the needle's taper. In fact, I recently heard a case of a guy who rode a CR500 for some time. They got into it later and discovered there was no main jet! But since the guy was mortal, he never rode it wide open, so never found that problem! One other suggestion. I used to run Bel-Ray H1R since that's what came with my bike (bought it used). It was okay but seemed to smoke more than other guy's 2 strokes, so I switched to Amsoil 2000. The bike ran so much crisper I couldn't believe it. In fact, I had to rejet for the different premix oil, which I wouldn't have guessed since both are full synthetics and mixed at 40:1 in my KTM 300. [/QUOTE]
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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
Proper throttle response???
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