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Hisun HS400 - Idle Adjustment

Hisun HS400
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Maintenance and Adjustment
3-6
Insert a Feeler gauge (2) of the
proper thickness between the
adjuster and valve tip.
Turn the Adjuster (3) clockwise or
counterclockwise with a tappet
adjusting tool (4) to obtain the
proper clearance. (Feeler gauge
should have a slight drag)
While holding the adjuster, tighten
the locknut.
Locknut Torque
14Nm or 10 ft lbs
6. Install all removed parts
Engine fan components
Fan cover
spark plug
Valve cover (exhaust)
Valve cover (intake)
Lower the cargo bed.
Console
Passenger’s seat
Driver’s seat
IDLE ADJUSTMENT
1. Start the engine and thoroughly
warm it up.
2. Lift the Cargo bed up
3. Remove the Driver’s seat,
Passenger’s seat.
4. Watch tachometer built into the
display.
Engine idle speed
1,400 ±100 r/min
5. Adjust by turning the throttle stop
screw (1) to obtain the correct idle
speed.
Note:
Do not turn the lock screw too tight.
Turning in, Idle speed becomes higher.
Turning out, Idle speed becomes lower.
6. Lower the cargo bed and reinstall
the Driver’s seat, Passenger’s seat.
Note:
Throttle Cable free play should be
adjusted before adjusting the idle
speed.
Adjusting the throttle cable free play
1. Remove the Driver’s seat,
passenger’s seat.
2. Remove the External cover (2)
3. Loosen the locknut on the cable
adjuster.
4. Turn cable adjuster (4) to achieve 0
slack in cable.
5. Tighten the locknut.

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