Service Information; Troubleshooting - Honda CRF450R 2009 Service Manual

FRAME/BODY PANELS/EXHAUST SYSTEM
SERVICE INFORMATION
GENERAL
Work in a well ventilated area. Smoking or allowing flames or sparks in the work area or where gasoline is stored can cause a
fire or elCplosion .
This section covers removal and installation of the body panels. sub-frame and exhaust system.
Serious burns may result if the exhaust system is not allowed to cool before components are removed or serviced.
Always replace the exhaust pipe gaskets after removing the exhaust pipe from the engine .
When installing the exhaust system . loosely install all of the exhaust system fasteners. Always tighten the exhaust pipe joint
nuts, then tighten the muffler mounting fasteners.
Always inspect the exhaust system for leaks after installation.
TORQUE VALUES
Seat mounting bolt
Side cover bolt
Radiator shroud bolt (upper side)
Engine guard bolt
Sub-frame upper mounting bolt
('09 - '12)
(After '12)
('09-'12)
(After '1 2)
Sub-frame right lower mounting bolt
Sub-frame left lower mounting bolt
('09 - '12)
(After '12)
Air cleaner housing mounling boll (After '12)
Exhaust pipe protector bolt
Exhaust pipe protector band
Exhaust pipe joint nut
Muffler mounting bolt
Muffler Joint band bolt
Mud guard screw (After '12)
Exhaust pipe stud bolt
Air cleaner connecting boot band bolt
(After ' 10: screw) (throttle body side)
Rear fender mounting bolt ('09 - '12)
TROUBLESHOOTING
Excessive exhaust noise
- Broken exhaust system
• Exhaust gas leak
Poor performance
Deformed exhaust system
Exhaust gas leak
- Clogged muffler
3-2
('09-'12)
(After '12)
('09- '12)
(After '12)
26 N'm (2.7 kgf-m , 191bHI)
10 N 'm (1.0 kgf'm, 7Ibf-ft)
5.0 N'm (0.5 kgf-m, 3.7Ibf-ft)
5.2 N'm (0.5 kgf-m, 3.8 JbHt)
10 N'm (1 .0 kgf-m , 7lbHt)
33 N 'm (3.4 kgf-m, 24 Ibf-ft)
32 N 'm (3.3 kgf-m. 24 Ibf-ft)
49 N 'm (5.0 kgf-m, 36lbHI.)
33 N 'm (3.4 kgf'm, 24 IbHt)
49 N 'm (5.0 kgf-m, 36 JbHt)
10 N 'm (1.0 kgf-m, 7 Ibf-ft)
12 N 'm (1.2 kgf'm, 9 Ibf-ft)
3.5 N'm (0.4 kgf'm, 2.6IbHt)
2.8 N'm (0.3 kgf'm, 2.1Ibf·ft)
21 N'm (2.1 kgf·m, 151bHt)
26 N 'm (2.7 kgf'm, 19Ibf·ft)
21 N' m (2.1 kgf'm, 15 IbHt)
20 N' m (2.0 kgf'm, 151bHt)
1.5N ·m(O.2kgf·m, 1.1 IbHt)
See
page 3-17
See page 3·10
13 N 'm (1.3 kgf-m, 10 IbHt)