Throttle - Honda CRF450R 2011 Owner's Manual

Throttle

Refer to Safety Precautions on page 27.
Throttle Freeplay
Inspection
Check freeplay (1).
Freeplay: 3 – 5 mm (0.1 – 0.2 in)
If necessary, adjust to the specified range.
(1)
(1) freeplay
Upper Adjustment
Minor adjustments are generally made with the
upper adjuster.
1. Pull the dust cover (2) back.
2. Loosen the lock nut (3).
3. Turn the adjuster (4).
Turning the adjuster in direction (–) will
decrease freeplay and turning it in direction (+)
will increase freeplay.
(2)
(+)
(–)
(4)
(2) dust cover (+) increase
(3) lock nut (–) decrease
(4) adjuster
4. Tighten the lock nut to the specified torque:
4 N·m (0.4 kgf·m, 3.0 lbf·ft)
Return the dust cover to its normal position.
5. After adjustment, check for smooth rotation of
the throttle grip from fully closed to fully open
in all steering positions.
If the adjuster is threaded out near its limit or
the correct freeplay cannot be reached, turn the
adjuster all the way in and back out one turn.
Tighten the lock nut to the specified torque:
4 N·m (0.4 kgf·m, 3.0 lbf·ft)
Install the dust cover and make the adjustment
with the lower adjuster.
Lower Adjustment
The lower adjuster is used for major freeplay
adjustment, such as after replacing the throttle
(3)
cables or removing the throttle body. It is also used
if you cannot get the proper adjustment with the
upper adjuster.
1. Hang the fuel tank to the left side of the frame
(page 38).
2. Loosen the lock nut (1).
3. Turn the adjuster (2) in direction (–) to
decrease freeplay, and in direction (+) to
increase freeplay.
(1) lock nut
(2) adjuster
4. Tighten the lock nut to the specified torque:
4 N·m (0.4 kgf·m, 3.0 lbf·ft)
5. Operate the throttle grip to ensure that it
functions smoothly and returns completely.
6. Install the fuel tank (page 39).
If you can't get the freeplay within the specified
range, contact your Honda dealer.
Throttle
(2)
(+)
(–)
(1)
(+) increase freeplay
(–) decrease freeplay
63
Servicing Your Honda