Yamaha F6AMH, Service Manual

Page: 60 / 510

MAINTENANCE SPECIFICATIONS
Item Unit
Model
World wide F6AMH, F6BMH F8CMH, F8CW
USA, Canada F6MH F8MH
2nd ring
Dimension (B) mm (in) 1.5 (0.06)
Dimension (T) mm (in) 2.5 (0.10)
End gap (installed) mm (in) 0.30-0.45 (0.012-0.018)
Side clearance mm (in) 0.03-0.07(0.012-0.0028)
Oil ring
Dimension (B) mm (in) 2.5 (0.10)
Dimension (T) mm (in) 2.45 (0.10)
End gap (installed) mm (in) 0.20-0.70 (0.008-0.028)
CONNECTING ROD
Small end inside diameter mm (in) 14.015 - 14.029 (0.5518 - 0.5523)
Big end inside diameter mm (in) 27.030 - 27.042 (1.0642 - 1.0646)
Big end oil clearance mm (in) 0.030 - 0.042 (0.0012 - 0.0017)
Big end-to-crank pin side
clearance mm (in) 0.05 - 0.22 (0.002 - 0.009)
CRANKSHAFT
Crankcase journal diameter mm (in) 29.997 - 30.009 (1.1810 - 1.1815)
Crank pin journal diameter mm (in) 26.997 - 27.009 (1.0629 - 1.0633)
Runout limit mm (in) 0.03 (0.0012)
CRANKCASE
Crankshaft journal inside
diameter mm (in) 33.016 - 33.040 (1.3000 -1.3008)
Crankshaft journal oil clearance
(bearing installed) mm (in) 0.011 - 0.039 (0.0004 - 0.0015)
Bearing mark color mm (in) A:Blue 33.032 - 33.040 (1.3005 - 1.3008)
B:Black 33.024 - 33.032 (1.30016 - 1.3005)
C:Brown 33.016 - 33.024 (1.2998 - 1.30016)
THERMOSTAT
Full-close temperature °C (°F) Below 60 (140)
Valve opening temperature °C (°F) 58 - 62 (136.4 - 143.6)
Full-open temperature °C (°F) Abobe 70 (158)
Valve lift mm (in) 3 (0.12)
FUEL PUMP
Discharge (@ 2,750 r/min) L/h(US gal/h,
lmp gal/h)
Above 12 (3.17, 2.64)
Maximum pressure
(@ 2,750 r/min) kPa (kg/cm
2
,
psi)
Below 117.6 (1.2, 17.1)
diaphragm stroke mm (in) 2.4 - 4.8 (0.095 - 0.189)
Plunger stroke mm (in) 3.525 - 6.575 (0.139 - 0.259)
2-11