New 4 stroke outboard tech in sleds?

[dfroster]

Read about the new performance 4 stroke outboard from Yami that doesn't have steel cylinder sleves. Weight close to comparable HPDI 2- stroke. It has plasma coated bores or something like that instead of sleeves. Wonder if that would work in their sled motors.

 

[APEX 06]

For what I have seen the extreme cold that are motors start at. It would be hard on the coatings.

 

[spddmon]

yamaha has been using nicasil instead of steel for years