Checking The Throttle Body Joint; Checking The Breather Hoses; Checking The Exhaust System - Yamaha YZ 2016 Series Owner's Service Manual

7. Install:
• Air filter case cover "1"
TIP
Align the air filter case cover groove "a" with the
air filter case edge "b".
8. Install:
• Fuel tank cap cover

CHECKING THE THROTTLE BODY JOINT

EASB296082
1. Check:
• Throttle body joint
Refer to "CHECKING THE THROTTLE
BODY JOINT" on page 7-8.

CHECKING THE BREATHER HOSES

EASB296083
1. Check:
• Breather hose "1"
Crack/damage  Replace.
Loose connection  Connect properly.
ECA
NOTICE
Make sure the cylinder head breather hose
is routed correctly.
1
1
1
3
2
1
a
b
1
3-13

CHECKING THE EXHAUST SYSTEM

EASB296084
1. Remove:
• Exhaust pipe protector
2. Check:
• Exhaust pipe 1
• Exhaust pipe 2
• Silencer
Crack/damage  Replace.
Refer to "ENGINE REMOVAL" on page 5-1.
• Exhaust gas
Leaks  Replace the gasket.
Refer to "ENGINE REMOVAL" on page 5-1.
3. Check:
• Tightening torques
Exhaust pipe bolt 1 and nut "1"
20 Nm (2.0 m·kgf, 14 ft·lbf)
Exhaust pipe 1 and exhaust pipe
2 bolt "2"
12 Nm (1.2 m·kgf, 8.7 ft·lbf)
Exhaust pipe 2 and silencer bolt
"3"
12 Nm (1.2 m·kgf, 8.7 ft·lbf)
Silencer and silencer bracket bolt
"4"
30 Nm (3.0 m·kgf, 22 ft·lbf)
2
4
4. Install:
• Exhaust pipe protector
Exhaust pipe protector screw
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
LOCTITE®
ENGINE
1
3