Motion Pro 01-0564 CR Pro Twist Throttle Conversion Kit Fits: Yamaha YFM 660F Grizzly 660 4WD 2002-2008 with stock carburetor Kit includes Motion Pro CR Pro throttle assembly, throttle cable to work with stock throttle body and mounting instructions Throttle assembly is die cast aluminum housing with black epoxy finish Straight pull throttle assembly recommended for 34mm or smaller carburetors Includes nylon throttle tube with grip retaining ring and pop out end cap