Checking The Camshaft Sprocket; Checking The Tappet Covers And Camshaft Sprocket Cover; Checking The Timing Chain Guides; Checking The Timing Chain Tensioner Assembly - Yamaha 5YF2-AE1 Service Manual

1
2
CYLINDER HEAD
1
4 - 8
4. Remove:
• bolts
• nuts
• cylinder head 1
NOTE:
_
Working in a crisscross pattern, loosen each
nut 1/4 of a turn.
EBS00224

CHECKING THE CAMSHAFT SPROCKET

1. Check:
• camshaft sprocket
Wear/damage → Replace the camshaft
sprocket and timing chain as a set.
1 1/4 of a tooth
2 Correct
3 Roller
4 Sprocket
CHECKING THE TAPPET COVERS AND
CAMSHAFT SPROCKET COVER
1. Check:
• tappet covers 1
• camshaft sprocket cover 2
• O-rings
Cracks/damage → Replace.
EBS00226

CHECKING THE TIMING CHAIN GUIDES

1. Check:
• intake side timing chain guide 1
• exhaust side timing chain guide 2
Wear/damage → Replace.
EBS00228
CHECKING THE TIMING CHAIN
TENSIONER ASSEMBLY
1. Check:
• chain tensioner assembly
Wear/damage → Replace.
ENG