Volkswagen Air Cooled 1949-1969 Repair Guide
Disconnect the accelerator cable return spring.
Move the throttle to the fully open position. Adjust the accelerator cable to give 0.02-0.04 in. clearance between the stop and the end of the throttle valve lever.
When the accelerator cable is adjusted and the throttle is moved to the fully open position, the kickdown switch should click. The ignition switch must be
for this test.
To adjust the switch, loosen the switch securing screws and slide the switch back and forth until the test in Step 3 is satisfied.
Reconnect the accelerator cable return spring.