Yamaha F6Z Service Manual page 23

Item World wide
USA, Canada
Face width "B"
Seat width"C"
Mergin thickness "D"
Stem outside diameter
Valve guide inside
diameter
Stem-to-guide clearance
Stem runout limit
VALVE SPRING
Free length
Free length
limit
Tilt limit
PISTON
Piston-to-cylinder clearance
Piston
diameter (D)
Measuring
point (H)
Pin boss inside diameter
Oversize piston diameter
1st
2nd
PISTON PIN
Outside
Diameter (D)
PISTON RING
Top ring
Dimension (B)
Dimension (T)
End gap (installed)
Side clearance
MAINTENANCE SPECIFICATIONS
Unit
IN mm (in)
EX mm (in)
IN mm (in)
EX mm (in)
IN mm (in)
EX mm (in)
IN mm (in)
EX mm (in)
IN mm (in)
EX mm (in)
IN mm (in)
EX mm (in)
IN mm (in)
EX mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
F6AMH
F6MH
1.84 - 2.26 (0.072 - 0.089)
1.84 - 2.26 (0.072 - 0.089)
0.6 - 0.8 (0.023 - 0.031)
0.6 - 0.8 (0.023 - 0.031)
5.475 - 5.490 (0.2156 - 0.2161)
5.460 - 5.475 (0.2150 - 0.2156)
5.500 - 5.512 (0.2165 - 0.2170)
5.500 - 5.512 (0.2165 - 0.2170)
0.010 - 0.037 (0.0004 - 0.0015)
0.025 - 0.052 (0.0010 - 0.0020)
0.03 (0.0012)
0.03 (0.0012)
0.035-0.065 (0.0014-0.0026)
55.950-55.965 (2.2028-2.2033)
14.004-14.015 (0.5513-0.5518)
56.200-56.215 (2.2126-2.2132)
56.450-56.465 (2.2224-2.2230)
13.996-14.000 (0.5510-0.5512)
0.15-0.30 (0.006-0.012)
0.04-0.08 (0.0016-0.0031)
2-6
Model
F8CMH
F8MH
0.7 (0.027)
1.0 (0.039)
27.6 (1.09)
27.6 (1.09)
1.0 (0.04)
1.5 (0.06)
1.2 (0.05)
2.05 (0.08)