If you notice that your mà © caboîte XNUMXcc does not keep idling, we recommend that you first adjust the idle screw . It sounds like a very easy manipulation, but it is usually the number one cause of this failure.

To adjust the idle screw :

• Equip yourself with a flat screwdriver .
• Turn your idle screw from one direction to the other with your engine running to find the precise moment for it to run as well as possible.
• The more you tighten the screw, the more you increase the idle speed. Conversely, the more you loosen it, the more you reduce the idle speed.

Warning: If you have any doubts about the condition of your idle screw, we recommend that you replace it.

If the idle speed of your machine is still not holding up, then it is very often a problem with the carburetor adjustment. You are surely too rich in gasoline. In that case :

• Remove the cover from your air box . If you find that the idle is holding much better then this confirms that you are too rich in gasoline.
• Check needle carburetor. It is surely too high, so there is too much gasoline coming in. Lower it.
• Check the seals of the Air adjusting screw . Replace them if they are in bad condition.
• Replace your idle jet .

CAUTION: Carburetor adjustment is a very complex operation. Sometimes it is difficult to find the perfect setting. You can get closer to a two-wheeler professional who will be able to help you.