Breather Hose; Cylinder Head Decarbonization - Yamaha EH63 Service Manual

PERIODIC MAINTENANCE
1
5.
Decarbonize:
• Spark arrester
NOTICE
When cleaning with a wire brush, use it softly to avoid
damage or scratch the spark arrester.
6.
Install:
• Muffler
(Refer to "INSTALLING THE MUFFLER" on page
3-9.)
• Spark arrester
• Muffler cap
• Muffler cap screw

BREATHER HOSE

1.
Check:
• Breather hose "1"
Crack/damage  Replace.
Poor connection  Connect.

CYLINDER HEAD DECARBONIZATION

The following procedure applies to all of the cylinder
heads.
1.
Remove:
• Cylinder head assembly
(Refer to "CYLINDER HEAD COVERS, CYLINDER
HEADS" on page 3-26.)
2.
Eliminate:
• Carbon deposits
(Refer to "CHECKING THE CYLINDER HEADS" on
page 3-32.)
3.
Install:
• Cylinder head assembly
(Refer to "INSTALLING THE CYLINDER HEAD
ASSEMBLIES" on page 3-33.)
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