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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
1992 rm 250
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[QUOTE="Ol'89r, post: 1194141, member: 17212"] You may want to dissasemble the entire engine and inspect everything. If the piston and head is pitted, there may be peices in the lower end. If you don't remove those peices, your engine will eat itself. The bottom end should have a little side to side movement but no up and down movement that you can feel. The rod is most likely a Pro-X or IMS. The main bearings should rotate smoothly without any noticable noise or roughness. They should be replaced when the crank is out. [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
1992 rm 250
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