G424 Service Manual LPG Fuel System(Low Emission Version)96
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.
LP Carburetor-Check, Clean
Check and Clean LP Carburetor.
The LP Carburetor requires periodic inspection,
and cleaning. Inspection and cleaning are as
follows :
1. Start engine.
2. Close the liquid outlet valve in the fuel storage
container.
3. Run engine out of fuel.
4. Remove mixer lid (4).
5. Remove air valve (2) and spring (3).
6. Clean air valve with warm soapy water.
7. Clean mixer throat with approved carburetor
cleaner.
8. Inspect air valve and mixer throat for wear,
repair/replace as required.
9. When reassembling mixer, locate the notch on
air/gas valve diaphragm to point to fuel inlet.
10. Open the fule storage container liquid outlet
valve solwly.
11. Check for leaks.
12. start engine and verify normal operation.
Check engine idle speed
Check engine low idle speed. If it does not meet
specification, adjust idle speed adjustment screw.
Low idle speed specification : 700+/-25 rpm
NOTICE
The idle air/fuel mixture is factory set, therefore, no
further adjusstments are required. The part throttle
air/fuel mixture is factory set, therefore, no further
adjusstments are required. The full power air/fuel
mixture is factory set, therefore no, further
adjustments are required, either.
Inspect and lubricate throttle cable linkage every
500 service hours or 3 months.
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