Yamaha YFM50S Service Manual page 32

Item
Oil pump
Oil pump type
Inner-rotor-to-outer-rotor-tip clearance
Outer-rotor-to-oil-pump-housing clearance
Oil-pump-housing-to-inner-rotor-and-outer-
rotor clearance
Shaft drive
Middle gear backlash
Final gear backlash
Lubrication chart
: Pressure feed
: Splashed scavenge
Transmission
Oil pan
ENGINE SPECIFICATIONS
Trochoid
0.05 ~ 0.07 mm
(0.002 ~ 0.003 in)
0.013 ~ 0.036 mm
(0.0005 ~ 0.0014 in)
0.06 ~ 0.10 mm
(0.0024 ~ 0.0039 in)
0.17 ~ 0.31 mm
(0.007 ~ 0.012 in)
0.17 ~ 0.31 mm
(0.007 ~ 0.012 in)
Crankshaft
pin
Piston pin
Piston
Clutch
2 - 10
SPEC
Standard
Camshaft
Rocker arm
Oil pump Timing
chain area
Oil strainer
Limit
----
0.15 mm
(0.006 in)
0.106 mm
(0.0042 in)
0.17 mm
(0.0067 in)
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Valve