YAMAHA XTZ 660/5V 1991-2008 Stage 2 tuning kit

The cylinder is bored out to 102 mm, deburred and honed. CP - forged piston kit of the extra class 102.00 mm, + 2 mm oversize,

compression 11:1. The pistons are supplied with matching piston rings, bolts and clips. The cylinder head is revised to increase

performance. The valve seats are milled for aerodynamics and the transitions are adjusted. Including the combustion chamber and

channels are glass bead blasted. Also includes the top end gasket set for 102 mm. Please tell us the year of manufacture.

-Price on request-