Which 4stroke engine for a Yamaha waveblaster 2

[Dave_S]

I'm considering a Waveblaster 2 I don't know much about them except they are popular for surfing waves and that's what I want it for.

I don't like carburettors or 2 strokes and I'd want more reliable power so I'd like to fit a 4 stroke with ECU and EFI, something around 120hp I guess.

I assume this has been done before.

Which engine would be easy fit and suitable.

Thanks

[micco]

I guess there is not an engine in the world which would be easy fit and suitable. But if you must have 4-stroke maybe Sea-Doo Spark engine is the best alternative. Try to find whole Spark without IBR and swap all iron from there.