5 - 67
ENG
CRANKSHAFT
CHECKING THE OIL PUMP GEARS AND
SHAFTS
1. Check:
• oil pump drive gear
• oil pump driven gear
• oil pump drive gear shaft
• oil pump driven gear shaft
Cracks/damage/wear
→
Replace the defec-
tive part(s).
EAS00365
CHECKING THE RELIEF VALVE
1. Check:
• relief valve body
1
• relief valve
2
• spring
3
Damage/wear
→
Replace the defective
part(s).
3
2
1
EAS00401
CHECKING THE BEARINGS AND OIL
SEALS
1. Check:
• bearings
Clean and lubricate the bearings, then
rotate the inner race with your finger.
Rough movement
→
Replace.
2. Check:
• oil seals
Damage/wear
→
Replace.
EAS00402
CHECKING THE CIRCLIPS AND WASHERS
1. Check:
• circlips
Bends/damage/looseness
→
Replace.
• washers
Bends/damage
→
Replace.
Summary of Contents for 2004 YP400
Page 1: ...2004 YP400 S 5RU1 AE1 SERVICE MANUAL ...
Page 2: ......
Page 8: ......
Page 9: ...GEN INFO 1 ...
Page 11: ...GEN INFO ...
Page 28: ...SPEC 2 ...
Page 30: ...SPEC ...
Page 77: ...CHK ADJ 3 ...
Page 137: ......
Page 138: ...CHAS 4 ...
Page 210: ......
Page 211: ...ENG 5 ...
Page 286: ...COOL 6 ...
Page 288: ...COOL ...
Page 299: ...FI 7 ...
Page 301: ...FI ...
Page 342: ...ELEC 8 ...
Page 378: ...8 34 ELEC LIGHTING SYSTEM ...
Page 404: ......
Page 405: ...TRBL SHTG 9 ...
Page 415: ......
Page 416: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN ...