Yamaha YFM90RA Model Vehicle User Manual


 
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SPEC
ENGINE SPECIFICATIONS
Oil pump
----TrochoidOil pump type
Inner-rotor-to-outer-rotor-tip clearance
(0.0016 ~ 0.0047 in)
0.15 mm
(0.006 in)
Outer-rotor-to-oil-pump-housing clearance
(0.0055 ~ 0.0083 in)
0.28 mm
(0.0110 in)
Oil-pump-housing-to-inner-rotor-and-outer-
rotor clearance
0.06 ~ 0.11 mm
0.14 ~ 0.21 mm
0.04 ~ 0.12mm
(0.0024 ~ 0.0043 in)
0.20 mm
(0.0079 in)
Lubrication chart
: Pressure feed
: Splashed scavenge
Crankshaft
pin
Camshaft
Rocker arm
Valve
Timing
chain area
Oil strainer
Oil pump
Piston
Piston pin
LimitStandardItem