Drive Chain Rollers; Adjustment; Lubrication - Honda CRF450R Manual Del Propietario Y Guía De Competiciones

Drive Chain Rollers

Measure the diameter of the upper (1) and lower
drive chain rollers (2). Remove them if below the
service limit.
SERVICE LIMIT: 35 mm (1.4 in)
Replace the roller if beyond the service limit.
Install the upper drive chain roller (Green) with the
" " mark (3) facing toward the frame and lower
drive chain roller (Black) with the " " mark (3)
side facing out.
Install the drive chain roller bolt and nut.
(3)
(1) upper drive chain roller (Green)
(2) lower drive chain roller (Black)
(3) " " mark
Tighten the drive chain roller bolt and nut to the
specified torque:
12 N·m (1.2 kgf·m, 9 lbf·ft)

Adjustment

1. Loosen the rear axle nut (1).
2. Loosen the chain adjuster 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)
(5)
(6)
(1) rear axle nut
(2) chain adjuster lock nuts (5) axle plates
(3) adjusting bolts
(2)
3. Tighten the rear axle nut to the specified
torque:
128 N·m (13.1 kgf·m, 94 lbf·ft)
4. Recheck chain slack and adjust as necessary.
5. Turn the adjusting bolt counterclockwise until
it touches the axle plates lightly. Then tighten
the chain adjuster lock nuts to the specified
torque while holding the adjusting bolt with a
wrench.
27 N·m (2.8 kgf·m, 20 lbf·ft)
Commercially prepared drive chain lubricants may
be purchased at most motorcycle shops and should
be used in preference to motor oil. 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.
(2)
(4)
(3)
(1)
(4) index marks
(6) reference marks
Drive Chain

Lubrication

Servicing Your Honda
103