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cover1033

Engine noise while gaining rpm

2 posts in this topic

First off, please excuse my ignorance and if this has been covered before, I couldn't find it anywhere. I've got a 2010 yz450 and I've noticed on the past two rides that I'll occasionally get a slapping sound in my engine when I gain rpms after lugging. I was wondering if this is my timing chain or piston slap. I initially thought my drive chain was slapping, but after listening closer, its in the engine. Thanks in advance for any help.

Edited by cover1033

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