Volkswagen Golf Workshop Service and Auto Repair Manuals

The limiting screw -a- is set at the factory and is not to be altered. Adjustment is to be performed as follow if the screw is turned inadvertently.

• ‒ Remove carburettor.
• ‒ Fully open choke valve.
• ‒ Throttle valve stage I in idle position.

• ‒ → Screw in limiting screw -a- until there is a gap between limiting screw -a- and stop.
• ‒ Screw in limiting screw -a- until it makes contact with stop.

Note:

To precisely determine the stop point of the limiting screw, place a thin piece of paper between limiting screw and stop. Establish stop point by continuously moving the pare and screwing in the limiting screw at the same time.

• ‒ Continue screwing in 3/4 of a turn form this point.
• ‒ Secure limiting screw with sealing paint.
• ‒ Adjusting idling speed and CO content: idle speed adjustment =>page 22-72