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Kawasaki MX & Off-Road Dirt Bikes
KX 80 connecting rod failures
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[QUOTE="JonV, post: 247332, member: 24509"] Well, finally pulled apart the boys 2000 KX80 to see what failed. Third connecting rod big end bearing failure in a row. the original, a factory crank assy and now a hot rod kitted crank. what is the primary failure mode here? imbalance? bearing damage at assembly, poor materials? everything looked fine each time. i would like to build it backup as a supermii spec motor but its not even making the 10 hr mark right now. i hear is is a weak link. what about a KX85 assembly? jetting appears ok, no air leaks, no sign of dirt getting by. nothing different from last year, same lube (maxima superM) and ratio 32:1. thanks. [/QUOTE]
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Dirt Bike Discussions By Brand
Kawasaki MX & Off-Road Dirt Bikes
KX 80 connecting rod failures
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