Checking The Crankcase; Checking The Bearings; Checking The Timing Chain Guide; Checking The Timing Chain - Yamaha T135SE Service Manual

CRANKCASE AND CRANKSHAFT
EAS00399

CHECKING THE CRANKCASE

1. Thoroughly wash the crankcase halves in a
2. Thoroughly clean all the gasket surfaces
3. Check:
EAS00401

CHECKING THE BEARINGS

1. Check:

CHECKING THE TIMING CHAIN GUIDE

1. Check:

CHECKING THE TIMING CHAIN

1. Check:
4-67
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mild solvent.
and crankcase mating surfaces.
9 crankcase
Cracks/damage → Replace.
9 oil delivery passages
Obstructions → Blow out with compressed
air.
9 bearings
Clean and lubricate the bearings, then
rotate the inner race with your finger.
Rough movement → Replace.
9 timing chain guide (intake side)
Damage/wear → Replace.
9 timing chain
Damage/stiffness → Replace the timing
chain and camshaft sprocket as a set.
ENG