M
Mark in Alaska
Guest
Have a pre 1986 40 hp Yamaha.
Have a pre 1986 40 hp Yamaha. Last trip out started it up and there was a knock or tapping sound that sounds like it is coming from engine block. suspect it may be a rod? plugs burning even. Any advise on whether to tear it apart or keep going. It starts easy and runs smooth as ever.
Have a pre 1986 40 hp Yamaha. Last trip out started it up and there was a knock or tapping sound that sounds like it is coming from engine block. suspect it may be a rod? plugs burning even. Any advise on whether to tear it apart or keep going. It starts easy and runs smooth as ever.