Suzuki Samurai 1986, Service Manual

Page: 33 / 482

1. Mixture adjusting screw pin
2. Rod
Mixture adjusting screw pin
10) With engine running at idle speed, adjust idle
mixture adjusting screw slowly in small incre-
ment allowing time for duty to stabilize after
turning screw to obtain duty of 10 50.
If duty is too low, back screw out; if too
high, screw it in. After obtaining duty of
10 50, recheck idle speed, and adjust if
necessary.
NOTE:
If adjustment can’t be made because duty meter
indicator does not deflect, check feed
system according to the checking procedure of
system described in section of Emission Control
System.
3) Reinstall carburetor following normal service
procedures.
Connect emission control system hoses and
lead wires. Make specified play on accelerator
cable and refill cooling system.
11) After adjustment, install seal rubber to duty
check coupler and drive in idle mixture
adjusting screw pin.
4) Place transaxle gear shift lever in “Neutral”,
set parking brake and block drive wheels.
5) Start engine, and warm it up to normal
operating temperature, stop engine.
6) Be sure to check the following before idle
mixutre adjustment.
l
Fuel level is within round mark at the
center of level gauge.
l
Valve lash is checked and adjusted accord-
ing to the maintenance schedule.
l
Air cleaner has been properly installed
and is in good condition.
l
All accessories (wipers, heater, lights etc)
are out of service.
29. CARBURETOR INSPECTION
Check each carburetor mounting nut for tight-
ness.
If it is found loose, tighten it securely.
Also, check where the carburetor and intake
manifold are mated and other parts of the
carburetor body for leakage. Be sure to correct
the cause for leakage, if any.
l
Ignition timing is within specification.
l
Choke valve opens fully.
l
Idle-up actuator does not operate.
7) Check and adjust idle speed to specification
if necessary.
Remove seal rubber of duty check coupler
and connect positive terminal of duty
meter to “Blue/Red” wire and negative
terminal to “Black/Green” wire.
9) Run engine at 1,500 2,000 for 30
seconds and bring it to idle speed.
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