Oil Pump (Yp125R); Checking The Oil Pump; Assembling The Oil Pump - Yamaha 2010 XMAX YP125R Service Manual
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Also See for 2010 XMAX YP125R:
- Owner's manual (96 pages) ,
- Owner's manual (94 pages) ,
- Owner's manual (92 pages)
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EAS37P1047
CHECKING THE OIL PUMP
1. Check:
• Oil pump drive gear
• Oil pump driven gear
• Oil pump housing
• Oil pump housing cover
Cracks/damage/wear → Replace the defec-
tive part(s).
2. Measure:
• Inner-rotor-to-outer-rotor-tip clearance "a"
• Outer-rotor-to-oil-pump-housing clearance
"b"
• Oil-pump-housing-to-inner-rotor-and-outer-
rotor clearance "c"
Out of specification → Replace the oil pump.
1. Inner rotor
2. Outer rotor
3. Oil pump housing
Inner-rotor-to-outer-rotor-tip
clearance
Less than 0.15 mm (0.0059 in)
Limit
0.23 mm (0.0091 in)
Outer-rotor-to-oil-pump-housing
clearance
0.013–0.018 mm (0.0005–0.0007
in)
Limit
0.25 mm (0.0098 in)
Oil-pump-housing-to-inner-and-
outer-rotor clearance
0.06–0.11 mm (0.0024–0.0043 in)
Limit
0.18 mm (0.0071 in)
3. Check:
• Oil pump operation
Rough movement → Repeat steps (1) and
(2) or replace the defective part(s).
EAS37P1048
ASSEMBLING THE OIL PUMP
1. Lubricate:
• Inner rotor
• Outer rotor
Recommended lubricant
Engine oil
2. Lubricate:
• Oil pump shaft
(with the recommended lubricant)
Recommended lubricant
Molybdenum disulfide grease
3. Install:
• Oil pump driven gear
• Oil pump housing "1"
• Oil pump outer rotor "2"
• Oil pump inner rotor "3"
• Pin "4"
• Oil pump housing cover
5-49
OIL PUMP (YP125R)
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