YAMAHA YZF R1 2004-2006 Stage 3 tuning kit

The camshafts are reprofiled and surface-treated. The cylinder is

re-honed with special diamond honing stones. The cylinder honing is necessary with regard to the correct running clearance and

the surface roughness corresponding to the piston ring. The cylinder head is revised: the valve seats are milled to optimize flow

and the transitions are optimized to increase performance. Including combustion chamber and channels glass bead blasting. The

crankshaft is finely balanced. The connecting rods and pistons are balanced and aligned.