I got this off Dootalk
There's been a lot of talk about Cat coming with a DI 2 stroke this spring. Only thing is, supposedly Cat found a way to directly inject fuel AND air at the same time so then it can sit on a 4 stroke style bottom end complete with an oil bathed crank... No more crank bearings or seals to worry about... This could greatly extend the expected service life of 2 stroke sleds past what they were even before the EPA regs... Supertrax had a " hint piece " article about it a while back and there's chatter about it on HCS...Should be interesting this spring....
Not sure if the link still works but here's some "outline" style pics of the new engine you can zoom in on, at least a little...
http://www.robbianodesign.com/galler...le/Arctic_Cat/
http://www.supertraxmag.com/article.asp?nid=1724&rez=1345&reload=true
Something else I just thought of, no need to worry about getting a bad batch of fuel either with the pressurized lubrication system it would be just like a four stroke. If your jets / now injectors I guess, got plugged up from some bad fuel it would just run a little crappy but wouldn't run so hot from being leaned out that it would burn down...
I suppose it would still be a two stroke so it would still fire twice as often and the rings wold still be sliding by the exhaust port but no more intake ports to catch / snag a ring..