Yamaha FX Nytro FX10MTRAX, Service Manual, Page: 478 / 859

5-48
ENG
OIL PAN AND OIL PUMP
2. Measure:
• Inner-rotor-to-outer-rotor-tip clearance
a
(between inner rotor 1 and outer rotor 2 )
• Outer-rotor-to-oil-pump-housing clearance
b
(between outer rotor 2 and pump housing 3 )
Out of specifications
→
Replace oil pump
assembly.
Inner-rotor-to-outer-rotor-tip clear-
ance:
0.090 ~ 0.150 mm
(0.0035 ~ 0.0059 in)
Outer-rotor-to-oil-pump-housing
clearance:
0.030 ~ 0.080 mm
(0.0012 ~ 0.0032 in)
3. Inspect:
• Oil pump operation
Rough movement
→
Repeat steps (1) and (2)
or replace the defective part(s).
NOTE:
Install the oil pump gear to check the oil pump oper-
ation.
4. Inspect:
• Relief valve body
1
• Relief valve 2
• Spring
3
Damage/wear
→
Replace the defective
part(s).
3
2
1
5. Inspect:
• Oil pump driven gear
Cracks/damage/wear
→
Replace.