This might be old news, but here is a link to snowmobilenews.com where is a story about Yamaha.
http://www.snowmobilenews.com/output.cfm?id=988975
"Corey Davidson, a three-time United States Cross Country Snowmobile Racing Association champion, will go for his fourth consecutive title aboard a Yamaha Apex RTX this season. "
Ike
http://www.snowmobilenews.com/output.cfm?id=988975
"Corey Davidson, a three-time United States Cross Country Snowmobile Racing Association champion, will go for his fourth consecutive title aboard a Yamaha Apex RTX this season. "
Ike
i never knew Yamaha left cross country, just sno-X