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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, F6BMH
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)
0.035-0.065 (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)
2-10
Model
F8CMH, F8CW
F8MH
0.7 (0.027)
1.0 (0.039)
0.03 (0.0012)
0.03 (0.0012)
27.6 (1.09)
27.6 (1.09)
1.0 (0.04)
15 (0.59)
1.2 (0.05)
2.05 (0.08)
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