Some wishful thinking....
The Rotax 4-TEC marine engines sure seem fire breathers. They are light weigh and compact three cylinder 4 stroke units that make a lot of power.
These 1500cc three cylinder units make the following horsepower depending on model/state of tune:
130hp, 155hp, 215hp and 255hp.
http://www.rotax.com/en/Engine/2004/...ine.Models.htm
What do you guys think? I think this is a much better engine than going the bike engine way. Yeh, I hear, what about the gearbox? I believe that can easily be overcome should one put your mind to that.
But I think it will cost a bank
