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Throttle cable
1. Inspection
a. Check whether the rubber sleeve of the right hand
handle and the throttle cable are damaged.
b. Check whether the rubber sleeve of the right hand
rotates smoothly and whether it can return automatically.
c. Hold the steering wheel with both hands and turn the
right hand to the right while rotating the rubber sleeve of the
right handle. Every time you turn a certain steering angle,
confirm whether the throttle can be reset normally. If you
can’t reset it, you need to lubricate the cable or the inside of
the right handle; or replace it with a new throttle cable or the
rubber sleeve of the right handle.
d. After starting the engine, turn the steering handle left
and right to ensure that the idling speed does not change
during the steering process, and then turn off the engine.
e. Rotate the right hand to check whether the rubber
sleeve inspection cable gap is within 2～4mm (0.1～0.2 in).
2. Adjust the throttle cable clearance
a. Fix the adjusting screw② with a 8# open-end wrench,
and then use a 10# open-end wrench to loosen the nut①
counterclockwise. Rotate the adjustment solenoid②
clockwise to reduce the free stroke, counterclockwise to
expand; adjust the gap to the specified value. After adjusting
the gap, tighten the nut①.
Torque: 3.8 N.m (0.4 kgf.m, 2.8 lbf.ft).
b. If the above adjustment fails to achieve the desired
effect, please refer to the description in "Remove the throttle
valve body assembly to clean up carbon deposits" to remove
the throttle valve body assembly. Use a 10# open-end
wrench to loosen the 2 nuts on the bracket to adjust. Torque:
3.0 N.m (0.3 kgf.m, 2.2 lbf.ft).
c. If the above two adjustments are invalid, replace the
throttle cable with a new one.
Idle speed
Caution:
●Before checking the idle speed, you should check other engine maintenance items and the condition is normal before
proceeding.
●Check the following items before checking the idle speed:
The maintenance indicator light " " should not light up.
The status of the spark plug has been checked.
The air filter element and the air inlet element have been inspected or replaced.
Check the throttle clearance.
●The limit screw on the valve body is not allowed to be adjusted privately.
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