Originally Posted by Speed_Demon
make is Zodiac pro 9
the main fuse for engine starting and tilt
Sorry you posted that whilst I was typing my last message.
What make of engine (and size etc?).
Yamaha 20HP engine master fuse is located on the front port side. The spare is stored on a waterproof tube clipped alongside the fuse. If it is similar you are looking for a cylindrical fuse (like you get in a 13A plug at home but bigger) about 1" long, 1/4" diameter... in some sort of inline holder (IIRC looks a bit like a pen top).