Oil Pump; Checking The Oil Pump; Checking The Oil Delivery Pipes And Hoses - Yamaha MT-03 Service Manual

EAS00364

CHECKING THE OIL PUMP

1. Check:
• Oil pump driven gear "1"
• Oil pump housing 1 "2"
• Oil pump housing cover "3"
• Oil pump housing 2 "4"
Cracks/damage/wear
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
1. Inner rotor
2. Outer rotor
3. Oil pump housing
Inner-rotor-to-outer-rotor-tip
clearance
0.07-0.12 mm
(0.0028-0.0047 in)
<Limit>: 0.2 mm (0.008 in)
Outer-rotor-to-oil-pump-housing
clearance
0.03-0.08 mm
(0.0012-0.0031 in)
<Limit>: 0.15 mm (0.0059 in)
Oil-pump-housing-to-inner-
rotor-and-outer-rotor clearance
0.03-0.08 mm
(0.0012-0.0031 in)
<Limit>: 0.15 mm (0.0059 in)
Replace the defec-
Replace the oil pump.
3. Check:
• Oil pump operation
Rough movement
(2) or replace the defective part(s).
EAS00367
CHECKING THE OIL DELIVERY PIPES
AND HOSES
The following procedure applies to all of the oil
delivery pipes and hoses.
1. Check:
• Oil delivery pipe
• Oil delivery hose
Damage
Obstruction
pressed air.
5-44

OIL PUMP

Repeat steps (1) and
Replace.
Wash and blow out with com-