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Wow!

Did you rebuild the crank or only the top-end...??

Seen this on many racer's motor grenades' due to bearing failure or pre-ignition...!
 

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Discussion Starter · #7 ·
The first time yup last winter , this time was just taking it easy down the road cause if fresh rebuild and the clutch cover hit my boot so I pulled clutch in to go to N and stop before all my oil was out of it and then bang !!
 
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