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[QUOTE="fastbygaff, post: 689208, member: 36143"] I've done this on 4-strokes and 2-strokes. It was very easy. We removed the screen tubes from inside the gas tank for the fuel peck ****, then installed one size larger fuel line. To the carb: Mike the fatest part of your needle, then drill the down tube out 0.011 over that size. Then you measure the diameter of the main jet and using jet drills, double the size of the mains hole. And no, you can not get a #360 jet if you currently have a #180, drill it out. The air/fuel mixture screw needs to be turned out a good bit, or drilled out and the spark plug gap changed to 0.018 gap. Thought I could remember it exactly but I can't. I do have it all written down if you want the exact procedure You want to run about 10.5:1 or better compression. I've pulled down many alky engines that were maintained and all I ever really found was ring wash was quite a bit, leading to change your oil alot. If you flush your engine with gas after every days ride, change your oil often, and watch your compression for more freaquent top end jobs, well you will be very surprised. Power increase is 20 to 40 percent better depending on tuning. Engine really gets less ware do to vertually no heat, and it's a down rite blast. Down side, nearly needs jetted every day or every slight weather change, ring wash makes cylinder hone jobs nothing in just a few hours, but not really any bad things happen except loss of compression. Don't be scared and try it, it's very easy. and for real fun throw a bit of nitrous in there! [/QUOTE]
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MX, SX & Off-Road Discussions
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