Yamaha YSR50T Service Manual page 92

INSPECTION AND REPAIR
- 1
4. Inspect:
-Crankshaft bearing
Pitting/ Damage-+ Replace.
NOTE:
Lubricate the bearings immediately after examin-
ing them to prevent rust.
5. Inspect:
-Oil seals
Wear/ Damage* Replace.
CRANKCASE
1. Thoroughly wash the case halves in mild
solvent.
2. Clean all the gasket mating surfaces and
crankcase mating surfaces thoroughly.
3. Inspect:
-Crankcase
Cracks/Damage+Replace.
-Oil delivery passages
Clog+Blow out with compressed air.
AUTOLUBE PUMP
Wear or an internal malfunction may cause pump
output to vary from the factory setting. This sit-
uation is, however, extremely rare. If improper
output is suspected, inspect the following:
1
.
Inspect:
-Delivery line
Obstructions+Blow out.
-Pump body seallcrankcase cover seal
Wear/ Damage+Replace.
-Check ball/Spring
Miss/ lmproper+Repair.
2. Inspect:
-Allowing air
Air exists+Air bleed.