Checking The Exhaust System; Cleaning The Spark Arrester - Yamaha Grizzly550 User Manual

• Left side panel
Refer to "GENERAL CHASSIS" on page 4-1.
EAS21080

CHECKING THE EXHAUST SYSTEM

1. Check:
• Exhaust pipe "1"
• Muffler "2"
• Exhaust pipe protector "3"
• Muffler bracket "4"
• Springs "5"
Cracks/damage → Replace.
• Gaskets "6"
Exhaust gas leaks → Replace.
2. Check:
• Tightening torque
Exhaust pipe nut "7"
14 Nm (1.4 m·kg, 10 ft·lb)
Muffler and muffler bracket bolt
"8"
20 Nm (2.0 m·kg, 14 ft·lb)
Muffler bolt "9"
20 Nm (2.0 m·kg, 14 ft·lb)
Exhaust pipe protector bolt "10"
7 Nm (0.7 m·kg, 5.1 ft·lb)
8
9
8
2
5
4
6
EAS28970

CLEANING THE SPARK ARRESTER

1. Clean:
• Spark arrester
10
3
1
6
5
7
3-15
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EWA28P1009
WARNING
• Select a well-ventilated area free of com-
bustible materials.
• Always let the exhaust system cool before
performing this operation.
• Do not start the engine when removing the
tailpipe from the muffler.
• Make sure that the transmission is in neu-
tral.
a. Remove the bolts "1".
b. Remove the tailpipe "2" by pulling it out of the
muffler and the gasket.
1
2
2
c. Tap the tailpipe lightly with a soft-face ham-
mer or suitable tool, then use a wire brush to
remove any carbon deposits from the spark
arrester portion of the tailpipe and the inner
contact surfaces of the muffler.
d. Install the gasket, and then insert the tailpipe
into the muffler and align the bolt holes.
e. Insert the bolts "1" and tighten them.
Spark arrester bolt
10 Nm (1.0 m·kg, 7.2 ft·lb)
f. Remove the purging bolt "3".
ENGINE
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