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Dirt Bike Discussions By Brand
Honda MX & Off-Road Dirt Bikes
96 CR250 Crankshaft threads
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[QUOTE="oilspot, post: 1192143, member: 72261"] Measure the outside diameter of the shaft on the threads with a dial caliper or micrometer. That will tell you the size. Then you have to figure out the thread pitch. Then use a pitch guage (looks like a really small comb) to figure out the pitch of the threads. If you don't have a pitch guage, just go to the hardware store and buy the different size nuts for that thread size. If you can't find a nut with the right thread pitch then you will not be able to find a tap. If the existing threaded hole on the flywheel weight you have now is the correct size, but not the correct thread pitch you will not be able to retap it. The hole has to be too small so that you can drill it with the correct drill bit, and then tap it to size. Theres nothing wrong with modifying the weight to work. But if you do it wrong you will end up with a destroyed crankshaft and possibly a lot of other damage. [/QUOTE]
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Dirt Bike Discussions By Brand
Honda MX & Off-Road Dirt Bikes
96 CR250 Crankshaft threads
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