YAMAHA XTZ 660/5V 1991-2008 Stage 1 tuning kit

The cylinder is bored out to 101 mm, deburred and honed. CP - forged piston kit of the extra class 101.00 mm, + 1 mm oversize.

The pistons are supplied with matching piston rings, bolts and clips. The cylinder head is revised to increase performance. The

valve seats are milled to optimize flow and the transitions are adjusted. Including combustion chamber and channels glass bead

blasting. Also includes the top end gasket kit for 101mm. Please tell us the year of manufacture.

-Price on request-