Volkswagen Beetle 1972 Maintenance And Repair Manual page 65

1,
Checking
Fast Idle
DISTRIBUTOR SIDE
OF COIl,
WARNING
Be very cartful working around
the engine when it is running.
Remove any neckties
or
neck¬
laces, Tie long hsrr back behind
your head.
a. Connect tachometer as di¬
rected in instructions for meter
b. Clear engine compartment of
any tools or rags. Start engine
and lei it idle.
c. Pull throttle valve positioner lev¬
er back and hold it against ad¬
justing screw. The tachometer
Should read between 1450 and
1650 rpm.
d. If reeding was noi between 1450
and 1650 rp rn turn adjusting
screw to set speed.
a. If IhrottEe valve positioner was
adjusted, take the car for 3 test
drive. Then recheck catting as
directed in steps a, b. and c.
The techo meter reading must
not exceed 1700 rpm. If it does,
readjust the throttle valve posi¬
tioner,
2. Checking and Adjusting
Throttle Value Closing
Time
a. With tachometer stilt connected,
pull throttle valve tever back un¬
til tachometer reads 3000 rpm.
b. Note the second hand position
on your watch. Release throttle
valve lever and check the time it
takes tachometer to drop to be'
twe#n BOO and 900 rpm. This is
the closing bme.