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Dirt Bike Brands - Other
ktm 450 problem
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[QUOTE="FAST JACK, post: 787943, member: 53208"] Shortly (about 3 weeks) after purchasing my new '04 450 exc, the same thing happened, top ring land mangled and compression ring broken, cracks in crankshaft around big end rod bearing. had to replace cylinder, piston, rings, and crank assy. My first assumption was possibly detonation, later dealer that preformed repairs under warranty said trash was culprit. Carb did have some dirt in it and after very first ride, I found the air filter was not seald to air box correctly. I still am not exactly sure of cause but have had no reoccurring problems. [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
ktm 450 problem
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