Checking The Crankcase; Checking The Bearings And Oil Seals; Checking The Sprocket And Chains - Yamaha YZF-R1P Service Manual

CRANKCASE
EAS00399

CHECKING THE CRANKCASE

1. Thoroughly wash the crankcase halves in a
mild solvent.
2. Thoroughly clean all the gasket surfaces
and crankcase mating surfaces.
3. Check:
• crankcase
Cracks/damage → Replace.
• oil delivery passages
Obstruction → Blow out with compressed
air.
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.

CHECKING THE SPROCKET AND CHAINS

1. Check:
• crankshaft sprocket 1
• oil/water pump assembly drive sprocket 2
Cracks/damage/wear → Replace the defec-
tive part(-s).
2. Check:
• timing chain 1
Damage/stiffness → Replace the timing
chain and crankshaft sprocket as a set.
• oil/water pump assembly drive chain 2
Damage/stiffness → Replace the oil/water
pump assembly drive chain and oil/water
pump assembly drive sprocket as a set.
5 - 61
ENG