Removing The Engine; Cleaning The Spark Arrester - Yamaha WR450FB 2012 Owner's Service Manual

EAS1DX3167

REMOVING THE ENGINE

1. Remove:
• Pivot shaft "1"
TIP
If the pivot shaft is pulled all the way out, the
swingarm will come loose. If possible, insert a
shaft of similar diameter into the other side of
the swingarm to support it.
2. Remove:
• Engine "1"
From right side.
TIP
Make sure that the couplers, hoses and cables
are disconnected.
1
EAS1DX3168

CLEANING THE SPARK ARRESTER

EWA1DX1006
WARNING
• Be sure the exhaust pipe and muffler are
cool before cleaning the spark arrester.
• Do not start the engine when cleaning the
exhaust system.
1. Remove:
• Muffler cap screws "1"
ENGINE REMOVAL
2. Remove:
• Spark arrester bolts "1"
3. Remove:
• Tail pipe "1"
• Tail pipe gasket "2"
• Spark arrester "3"
Pull the spark arrester out of the muffler.
• Spark arrester gasket "4"
4. Clean:
• Spark arrester
Tap the spark arrester lightly, then use a
wire brush to remove any carbon deposits.
5. Install:
• Spark arrester gasket
• Spark arrester
Insert the spark arrester into the muffler and
align the bolt holes.
• Tail pipe gasket
• Spark arrester bolts
Spark arrester bolt
9 Nm (0.9 m·kgf, 6.4 ft·lbf)
6-4
New
New