Adjustment Of Idle Speed And Idle Mixture; Method With Co-Meter - Volkswagen Taro 1989 Workshop Manual

ADJUSTMENT OF IDLE SPEED AND IDLE MIXTURE
1. Connect tachometer (See page 13)
2.
Warm up engine
Allow the engine to reach normal operatlng temperature
3.
Check idle speed
Idle speed. wnhout Power Steerlng 2Y 700
?
50
rpm
4Y 700
?
50
rpm
wRh Power Steering 2Y B00
r_
50 rpm
4Y 800
?
50
rpm
If not as specifled, adjust according to the following procedure
Notice
.
A ways m e
a
CO metar
wnen
sdjusllng the
oole
m
nJre It
1 s no1 neceruv to aqust ~ r l n the d
e
mtnurr
a0
-51 ng
Frrew n most
.oh
rlrz
l
they are n go00 conu
I
on
.
If a CO-meter is not available and it is absolutely necessav
to adjust wlth the idle minure adjustlng screw, use the
alterndtlve method
(See page 17, 18)
A. METHOD WITH CO-METER
1. Visually check carburetor
(a) Check for loose screws or loose mounting to the manifold
(b) Check for wear in the linkage, m~ssing snap rings or
excesswe looseness
In
the throttle shaft Correct any
problems found
2. Initial condlliona
(a) Air cleaner installed
(b) Normal operating coolant temperature
(c) Choke fully open
(d) All accessories swltched off
(e) All vacuum lines connected
(f) lgnitlon timing set correctly
(g) Transmission in neutral
(
(h) Fuel level (1) should be about even wlth the correct level In
I
the sioht glass
- -
(i) CO-meter operates normally