Ken OConnor Racing - Did you know that KOR manufactures CNC cut porting templates for over 80 models of ATVs, snow machines, and personal watercraft? These profiles were designed by a factory
Sportport Part 1 - YouTube
CYLINDER BORING - YAMAHA YFZ350 BANSHEE
LED Performance: Yamaha 350 Banshee Port Modifications
Porting Templates | Blasterforum.com
Porting cyls w/ racelogic template and 4mil short rod - Banshee Repairs and Mods - Banshee HQ Forums