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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
Seized 93cr250, Tony91 or anyone else
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[QUOTE="gator kdx, post: 700026, member: 36274"] After about 1hr of riding this past Saturday my 93cr250 seized up going when doing a fairly long run - I was at about 2/3 throttle and jetted on the rich side so still not sure how or why it seized. Anyhow, all of a sudden the motor started making a 'whining' sound and felt like it was slowing down then a telltale clunk (all of this happened in less than a second). I pulled in the clutch and came to a stop as fast as possible. A friend and I pulled the cylinder and piston and both look worn but no obvious damage like I would expect from the seize. When the cylinder came off their was a piece of metal - about the 1/4inch circular - sitting on top of the crank. I have done top ends before but never the bottom. I am worried that splitting the cases is going to be required. The biggest problem I have noticed so far is that when I turn the crank, at the bottom their is about 1/4 inch of vertical play. At the top (TDC) the crank seems to bind up and not want to pivot. My previous bike was a 90kdx200 which I ended up pouring money into and I really can't afford to do that again. If anybody has any ideas or suggestions I could use the advice. Thanks [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
Seized 93cr250, Tony91 or anyone else
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