Yamaha Sniper - Checking the Bearings; Checking the Crankcase; Checking the Timing Chain; Checking the Timing Chain Guide

ENG
4-67
CRANKCASE AND CRANKSHAFT
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:
9
crankcase
Cracks/damage
→
Replace.
9
oil delivery passages
Obstructions
→
Blow out with compressed
air.
EAS00401
CHECKING THE BEARINGS
1. Check:
9
bearings
Clean and lubricate the bearings, then
rotate the inner race with your finger.
Rough movement
→
Replace.
CHECKING THE TIMING CHAIN GUIDE
1. Check:
9
timing chain guide (intake side)
Damage/wear
→
Replace.
CHECKING THE TIMING CHAIN
1. Check:
9
timing chain
Damage/stiffness
→
Replace the timing
chain and camshaft sprocket as a set.
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