Honda CRF450R 2009 Service Manual page 100

MAINTENANCE
TRANSMISSION OIL CHANGE
Transmission oil should be changed al least every
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six races or 15 hours of operation to ensure
consistent performance and maximum service life of
both transmission and clutch components.
Support the motorcycle upright on a level surface.
Remove the oil filler cap from the right crankcase cover.
Place an oil pan under the engine to catch the
transmission oil, then remove the transmission oil drain
bolt and sealing washer.
After the transmission oil has drained completely.
Apply engine oil to the transmission oil drain boll
threads and seating surface.
Inslall a new sealing washer to the transmission oil
drain bolt, and install them to the left crankcase.
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Tighten the transmission oil drain bolt to the specified
torque.
TORQUE : 16 N·m (1.6 kgf-m , 121bHt)
Fililhe engine with Ihe recommended Iransmission oil.
RECOMMENDED TRANSMISSION OIL:
Pro Honda GN4 4-stroke oil (U .S.A. & Canada) or
equivalent motor oil
API service classification : SG or higher
JASO T903 standard: MA
Viscosity: SAE 10W-30
TRANSMISSION OIL CAPACITY:
'09 - '12: 0.59 liter (0.62 US qt, 0.52 Imp qt) at
draining
0.67 liter (0.71 US qt, 0.59 Imp qt) at
disassembly
After '12 0.64 liter (0.68 US qt, 0.56 Imp qt) at
draining
0.72 liter (0.76 US qt, 0.63 Imp qt) at
disassembly
Check the oil level by following sleps 1 - 6 in the oil
level check procedure (page 4-19).
COOLING SYSTEM
4·20
Remove the foUowing :
- Radiator shrouds
- '09- '12: (page 34)
- After '12: (page 3-5)
- Radiator grills (page 7-10)
Check the radiator air passages for clogging or
damage.
Straighten bent fins and remove insects, mud or other
obstructions with compressed air or low water pressure.
Replace the radiator if the air flow is restricted over
more than 20% of the radialing surface.