Honda CRF450R 2006 Owner's Manual page 91

Replace the roller if necessary as follows.
Install the upper drive chain roller (Green) with
the "/" mark (9) facing toward the frame and
lower drive chain rollar (Black) with the "/"
mark (9) side facing out.
(7)
(9)
(9)
(8)
(9) "/ / " mark
(7) upper drive chain roller
(8) lower drive chain roller
8. Check the driven sprocket nut torque values
after each race.
24 lbf·ft (32 N·m, 3.3 kgf·m)
Adjustment
1. Loosen the rear axle nut (1).
2. Loosen both the lock nuts (2) and turn the
adjusting bolts (3) counterclockwise to
decrease slack or clockwise to increase slack.
Align the index marks (4) of the axle plates
(5) with the same reference marks (6) on both
sides of the swingarm.
(1)
(4)
(6)
(1) rear axle nut (4) index mark
(2) lock nut (5) axle plate
(3) adjusting bolt (6) reference mark
3. Tighten the rear axle nut to the specified
torque:
94 lbf·ft (128 N·m, 13.1 kgf·m)
4. Recheck chain slack and adjust as necessary.
5. Loosen the adjusting bolt counterclockwise
lightly until it touches the axle plate. Then,
while holding the adjusting bolt with a wrench,
tighten the lock nut to the specified torque:
20 lbf·ft (27 N·m, 2.8 kgf·m)
Lubrication
Commercially prepared drive chain lubricants
may be purchased at most motorcycle shops and
should be used in preference to motor oil. Pro
Honda Chain Lube or an equivalent, or SAE 80
or 90 gear oil is recommended.
Saturate each chain joint so that the lubricant
penetrates the space between adjacent surfaces of
the link plates and rollers.
Removal, Cleaning & Replacement
(2)
For maximum service life, the drive chain should
be cleaned, lubricated, and adjusted before each
outing.
(3)
1. Remove the master link retaining clip (1) with
(5)
pliers. Do not bend or twist the clip.
Remove the master link (2). Remove the
drive chain.
(1) retaining clip
2. Clean the drive chain in high flash-point
solvent and allow it to dry.
3. Inspect the drive chain for possible wear or
damage. Replace the drive chain if it has
damaged rollers, loose fitting links, or
otherwise appears unserviceable.
Replacement chain: D.I.D.520DMA2
Drive Chain
(2)
(1)
(2) master link
(cont'd)
87
Servicing Your Honda