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LP Engine G430(3.0L) LP Fuel System
Tests or Adjustments
Adhere to the following warnings when performing any
tests or adjustments while the engine is running.
Work carefully around an engine that is running.
Engine parts that are hot, or parts that are moving,
can cause personal injury.
Exhaust fumes contain carbon monoxide (CO)
which can cause personal injury or death. Start
and operate the engine in a well ventilated area
only. In an enclosed area, vent the exhaust to the
outside.
Carburetor Adjustment
Low Idle Speed Adjustment
Low Idle Speed Adjustment
(1) Idle speed screw.
1. Make sure the setting for ignition timing is correct.
See Ignition Timing.
2. Connect the Electrical System Analyzer as shown in
Engine RPM Check in the Testing And Adjusting.
3. Start and run the engine until the engine reaches
normal operating temperature.
4. Adjust screw (1) to get the correct low idle speed.
5. Check low idle speed. The Correct low idle
speed is: .........................................800 L 25 rpm.
Idle Mixture Adjustment
Mixture Adjustment.
(2) Idle mixture Screw
1. Connect the Electrical System Analyzer to read
engine rpm.
2. Check to be sure the ignition timing is set correctly.
3. Run the engine until normal operating temperature
is reached.
4. Check to be sure the low idle speed is set correctly.
5. Turn idle mixture screw (2) clockwise or
counterclockwise to obtain the maximum smooth
rpm.
6. Check and readjust (if required) the low idle speed
again.
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