1989 Yamaha 40hp - used motor, low compression

zio228

Cadet
Joined
May 16, 2007
Messages
7
Looking at a 1989 Yamaha 40hp 2-stroke... they're only asking $275, includes controls. They say it has low compression, but otherwise in good condition. So how difficult is a top-end job on these? I've done several top ends on 2-stroke dirt bikes, even installed new cylinder head on my Dodge Dakota, but never an outboard.

How reliable are these motors? It's going to go on an 18' Starcraft aluminum center console project. Am I underpowering this boat w/ a 40hp?
 
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