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Dirt Bike Discussions By Brand
Honda MX & Off-Road Dirt Bikes
96 CR250 Crankshaft threads
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[QUOTE="Bunya, post: 1194401, member: 77196"] It may not be that the crankshaft is bent, it might be the threads you tapped in the weight are not straight. We advised you not to attempt to retap the weight a different thread as it will turn it into junk. :coocoo: It's possible the tap either started crooked or became crooked as it interacted with the existing threads. If it's definitely the crank that's bent, it was probably the result of someone hitting the end of the crank with a hammer to get the flywheel off. They likely had the nut out at the end of the shaft to protect the threads. They probably caught the edge of the nut rather than flat on the face. This would act like a small lever and could bend the end of the shaft. It would also account for the damage to the threads and why a different nut was used. Either way, the weight is certainly ruined. It could be used on a different bike with a 14 mm or larger crank where the existing threads are drilled out and it's retapped to the larger thread. If the existing threads are crooked, it would have to be bored to correct the alignment because a drill will just follow the crooked threads. You really should have taken the advice to sell that one if the thread was incorrect. :bang: Once again, [B]Cheap is Expensive![/B] Marc - [/QUOTE]
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Dirt Bike Discussions By Brand
Honda MX & Off-Road Dirt Bikes
96 CR250 Crankshaft threads
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