Left Side - YCF 50 A 2017 Manuel De L'utilisateur

Please adjust the idle if your Mini-Motorbike stalls or races while idling.
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LEFT SIDE

Idle Adjustment Procedure:
1. Turn screw (B) in clockwise until it stops, then unscrew exactly 2 turns,near its lowest possible setting.
2. Start and warm up the engine for about 10 minutes. Only start the engine outdoor.
3. Adjust/Correct the idle speed to a slow 900 ± 50 rpm by turning screw (A) out counter-clockwise.
4. Twist the throttle several times to ensure proper adjustment and that the idle speed remains constant.
5. Then, start the engine in neutral and turn the handlebar to the left and right to make sure the engine
idling has not changed. Changes imply a problem with the cable system. Please contact your nearest
authorised YCF dealer for repair.
Warning
Do not start the engine in closed places under any circumstances. Your Mini-Motorbike emits carbon
monoxide gas, whose harmful effects can lead to serious injury or even death when inhaled.
(A) Idle adjustment screw
118
CARBURETTOR ADJUSTMENTS
(B) Idle air & fuel mixture screw
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