Yamaha YZ 2016 Series, Owner'S Service Manual

Page: 101 / 392

ENGINE
3-13
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
EASB296082
CHECKING THE THROTTLE BODY JOINT
1. Check:
• Throttle body joint
Refer to “CHECKING THE THROTTLE
BODY JOINT” on page 7-8.
EASB296083 CHECKING THE BREATHER HOSES
1. Check:
• Breather hose “1”
Crack/damage

Replace.
Loose connection

Connect properly.
ECA
NOTICE
Make sure the cylinder head breather hose
is routed correctly.
EASB296084
CHECKING THE EXHAUST SYSTEM
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
4. Install:
• Exhaust pipe protector
3
1
2
a
b
1
1
1
1
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)
Exhaust pipe protector screw
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
LOCTITE®
T
R
.
.
2
1
4
3
T
R
.
.