Checking The Throttle Body Joint; Checking The Breather Hoses; Checking The Exhaust System - Yamaha WR250F 2016 Owner's Service Manual

6. Install:
• Air filter guide "1" (to the air filter element)
• Air filter element "2"
• Air filter mounting bolt "3"
Air filter mounting bolt
2.0 Nm (0.20 m·kgf, 1.4 ft·lbf)
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

EAS2GB7092
1. Check:
• Throttle body joint
Refer to "CHECKING THE THROTTLE
BODY JOINT" on page 8-10.
EAS2GB7093

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.
1
3
2
1
a
b
1
1

CHECKING THE EXHAUST SYSTEM

EAS2GB7094
1. Remove:
• Exhaust pipe protector
2. Check:
• Exhaust pipe 1
• Exhaust pipe 2
• Silencer
Crack/damage  Replace.
Refer to "ENGINE REMOVAL" on page 6-1.
• Exhaust gas
Leaks  Replace the gasket.
Refer to "ENGINE REMOVAL" on page 6-1.
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)
3-15
ENGINE
1
2
1