Yamaha F40BMHD Service Manual page 46

SPEC
Item
PISTONS
Piston-cylinder clearance
Piston side "D"
Measuring point "H"
Pin boss inside diameter
Oversize piston
diameter
PISTON PINS
Diameter
PISTON RINGS
Top ring
(B)
(T)
End gap (installed)
Side clearance
2nd ring
(B)
(T)
End gap (installed)
Side clearance
Oil ring
(B)
(T)
End gap (installed)
Side clearance
CONNECTING RODS
Small end inside diameter
Big end inside diameter
Big end oil clearance
Big end-crank pin side
clearance
Big end bearing color
MAINTENANCE SPECIFICATIONS
Worldwide Unit
USA, Canada
mm (in)
mm (in)
mm (in)
mm (in)
1st mm (in)
2nd 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)
mm (in)
mm (in)
mm (in)
F40BMHD, WHD
F40MH
0.035 - 0.065 (0.0014 - 0.0026)
64.950 - 64.965 (2.5570 - 2.5573)
15.974 - 15.985 (0.6289 - 0.6293)
+ 0.25 (0.001)
+ 0.50 (0.002)
15.965 - 15.970 (0.6285 - 0.6287)
0.15 - 0.30 (0.006 - 0.012)
0.01 - 0.03 (0.004 - 0.0012)
0.30 - 0.50 (0.012 - 0.020)
0.01 - 0.03 (0.0004 - 0.0012)
0.20 - 0.70 (0.008 - 0.028)
0.04 - 0.18 (0.002 - 0.007)
15.985 - 15.998 (0.6293 - 0.6298)
36.000 - 36.024 (1.4173 - 1.4183)
0.020 - 0.052 (0.0008 - 0.0020)
0.15 - 0.22 (0.0059 - 0.0087)
A : Blue 36.016 - 36.024 (1.4180 - 1.4183)
B : Black 36.008 - 36.016 (1.4176 - 1.4183)
C : Brown 36.000 - 36.008 (1.4173 - 1.4176)
2-5
Model
F40BED, F40BET
F40ER, F40TR
2 (0.007)
1.2 (0.05)
2.4 (0.09)
1.5 (0.06)
2.7 (0.11)
2.5 (0.10)
2.75 (0.11)
E