How to troubleshoot a Yamaha V8 Generation I Boat Engine: Part 1

Ryan Coffin, Lead Technician of Yarmouth Boat Yard, troubleshoots a Yamaha V8 Generation I boat engine. Rusty spark plugs can be an indication of a cracked manifold or cracked cylinder head. Rust is caused from salt water entering the combustion chamber. Rust on the spark plugs can be an indication of possible engine failure.

In this episode we show how to check the spark plugs. If you have any questions, please feel free to contact us at Yarmouth Boat Yard, (207)846-9050