54 Servicing Your Honda
Engine Oil
1. Run the engine at idle for 3 minutes, then shut
it off.
2. Wait 3 minutes after shutting off the engine to
allow the oil to properly distribute itself in the
engine.
3. Support the CRF in an upright position on a
level surface.
4. Remove the engine oil fill cap/dipstick (1),
wipe it clean, and insert the engine oil fill cap/
dipstick without screwing it in. Remove the oil
fill cap/dipstick.
5. Check that the oil level is between the upper
(2) and lower (3) level marks on the engine oil
fill cap/dipstick.
• If the oil is at or near the upper level mark,
you do not have to add oil.
• If the oil is below or near the lower level
mark, add the recommended oil until it
reaches the upper level mark. (Do not
overfill)
Reinstall the engine oil fill cap/dipstick.
Repeat steps 1 – 5.
6. Check that the O-ring (4) is in good condition
and replace it if necessary.
7. Reinsert the engine oil fill cap/dipstick (1).
8. Check for oil leaks.
1. Run the engine at idle for 3 minutes, then shut it off.
2. Support the CRF in an upright position on a
level surface.
3. Remove the engine oil fill cap/dipstick (1)
from the left crankcase cover.
4. Place an oil drain pan under the engine to catch
the oil. Then remove the engine oil drain bolt
(2) and sealing washer (3).
5. With the engine stop button pushed, repeat
kickstarter operation approximately five times
to drain the engine oil completely.
6. After the oil has drained, apply engine oil to
the drain bolt threads and tighten it with a new
sealing washer to the specified torque:
16 N·m (1.6 kgf·m, 12 lbf·ft)
Pour the drained oil into a suitable container and
dispose of it in an approved manner (page 148).
Improperly disposal of drained fluids is harmful to
the environment.
Checking & Adding Oil
(1) engine oil fill cap/dipstick
(2) upper level mark
(3) lower level mark
(1) engine oil fill cap/dipstick
(4) O-ring
Changing Engine Oil & Filter
(1) engine oil fill cap/dipstick
(2) engine oil drain bolt
(3) sealing washer (new)
CRF450R.book Page 54 Thursday, July 8, 2010 9:34 AM
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