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Yamaha 25hp 2 stroke rattle

N

Nip

New member
Hi,My 1990 engine started rattling last year, it only dose it when up on the plane and I back off the throttle. So far I have replaced (in order) main end bearings, re bored & replaced Pistons, rebuilt the lower unit and it still rattles! I've got it started and removed the pull starter assembly and it was just the same. The gear selection lever feels smooth. I'm running out of ideas, here's a video of it doing it i

https://youtu.be/-otZWV3eIKQ

Thanks Steve
 
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