Yamaha TT-R125(S) 2003 Owner's Service Manual

4 - 16ENGCYLINDER HEADWarpage limit:0.03 mm (0.0012 in) If the warpage is out of specification,resurface the cylinder head. Place #400 ~ 600 grit wet sandpaper onthe surface plate, and re-surface the headusing a figure-eight sanding pattern.NOTE:Rotate the cylinder head several times toavoid removing too much material from oneside.ASSEMBLY AND INSTALLATIONCylinder head1. Install: Dowel pin 1 Gasket 2 New2. Install: Cylinder head Copper washer Bolt (cylinder head)NOTE: Apply Quick gasket® (YAMAHA BondNo.1215) on end of the cylinder head bolts(M6), as shown. Apply the engine oil on the contact surfaces ofthe bolts (cylinder head) and copper washers. Follow the numerical order shown in the illus-tration. Tighten the bolts in two stages.Quick gasket®:ACC-QUICK-GS-KTYAMAHA Bond No.1215:90890-85505T R. .M8 22 Nm (2.2 m · kg, 16 ft · lb)M6 10 Nm (1.0 m · kg, 7.2 ft · lb)