Honda CRF450R 2020, Owner'S Manual & Competition Handbook

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Servicing Your Honda
71
Throttle
1. Check that the throttle assembly is positioned
properly (the end of the throttle housing (1) is
aligned with the paint mark (2) on the
handlebar) and the securing bolts are tight.
2. Check for smooth rotation of the throttle (3)
from fully open to fully closed in all steering
positions. If there is a problem, see your dealer.
3. Inspect the condition of the throttle cables
from the throttle grip down to the throttle body.
If the cable is kinked or chafed, have it
replaced.
4. Check the cables for tension or stress in all
steering positions.
5. Lubricate the cables with a commercially
available cable lubricant.
Check for smooth rotation of the throttle. If
necessary, apply multi-purpose grease to sliding
surface of the throttle cable ends.
1. Slide the dust cover (1).
2. Remove the throttle housing bolts (2).
3. Remove the throttle housing (3) from the
throttle pipe (4).
4. Thoroughly lubricate the throttle cable ends (5)
with multi-purpose grease.
5. Install the throttle housing, then tighten the
throttle housing bolts to the specified torque:
7 lbf·ft (10 N·m, 1.0 kgf·m)
Align the lugs (6) of the wire guide with the
grooves (7) of the throttle housing.
6. Install the dust cover in the reverse order.
If the throttle operation is not smooth, replace the
throttle cable.
Be sure the throttle returns freely from fully open
to fully closed automatically, in all steering
positions.
Throttle Inspection
(1) throttle housing
(2) paint mark
(3) throttle
(2) (1)
(3)
Throttle Cable Lubrication
(1) dust cover (5) throttle cable ends
(2) housing bolts (6) lugs
(3) throttle housing (7) grooves
(4) throttle pipe
(5)
(2)
(1) (3)
(6)
(4)
(7)
(7)