SGM kart racing engines
 

On this site you can buy all SGM products, not only the complete engines but also every genuine spare part by browsing the online catalog and the exploded drawings (about 600 different parts).

Then, email assistance and repair at the factory possible.

http://www.maranello-engineering.com/
http://www.maranello-engineering.com/eshop/
http://www.maranello-engineering.com...i-c-67_84.html
http://www.maranello-engineering.com...i-c-67_72.html
http://www.maranello-engineering.com...-67_72_87.html
http://www.maranello-engineering.com...72_87_188.html
http://www.maranello-engineering.com...art-c-100.html
http://www.maranello-engineering.com/sgm_me-it.html
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Maranello Engineering Srl

SGM kart racing engines
 

Nobody here is going to have any interest at all.
These are real racers, not people playing with toy motor boats.
There is another group:
rec.boats.racing.power (IIRC)