CRF 450R engine during test ride

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1/6/2019 5:33 PM

I had a bizarre situation take place Saturday. While selling a bone stock 2009 CRF450R the bike locked up when the potential buyer shifted in 5th gear. Prior to this the bike had good compression and had never been apart. It was unexpected and bit embarrassing. The oil filter didn't have visible amounts of oil in it . My only guess is maybe fuel leaking the oil and making the engine oil washed out. Has anyone experienced a similar failure at 70 hours ? The owner of the bike was a vet rider . Thanks in advance


1/6/2019 5:43 PM

What does the oil look like?
Is the engine still locked up?
Have you pulled the spark plug and kicking it over?
70 hours is a long time with out any service to the engine.

Paw Paw