Lp Fuel System; (Standard And/Or Low Emission Version) - Daewoo G424 Gasoline Service Manual

LP Fuel System (Standard and/or Low Emission Version)
Problem
Will Not Start/FCV
Staying On
Will Not Start/FCV
Staying On
G424 Service Manual
Probable Cause
Fuel container empty
Liquid valve closed
Excess flow valve closed
Plugged fuel line
Clogged fuel filter
Faulty vapor connection
between pressure regulator
and carburetor
Fuel lock malfunction
Pressure regulator
malfunction
Carburetor malfunction
Air filter plugged
No spark
Engine Mechanical
180
Probable Solution
Fill fuel container
• Do not exceed 80% of liquid capacity.
Open liquid valve slowly
Reset excess flow valve
• Close liquid valve
• Wait for click sound
• Open valve slowly
Remove obstruction from fuel line
• Close liquid fuel valve
• Using caution, disconnect fuel line
• Clear obstruction with compressed air
• Re-connect fuel line
• Leak test
Repair/replace as required
• Close liquid fuel valve
• Using caution, disconnect fuel line
• Remove/replace filter element
• Clean fuel filter housing
• Open liquid fuel valve
• Leak test
Check connection
• No holes in hose
• Clamps must be tight
• Watch for kinked and/or pinched
and/or collapsed hose
• Check circuit wiring
• Check safety switch
• Check fuelock
• Repair/replace fuelock as required
Test pressure regulator operation
• Use test kit
• Install primary pressure gauge
• Install secondary pressure gauge
• Crank engine and observe readings
on pressure gauges
• Compare readings to specifications
• If readings are out of spec
repair/replace pressure regulator
Check carburetor
•Remove air/gas valve assembly
• Clean air/gas valve and carb throat
• Check diaphragm for holes/damage
• Check air/gas valve for wear/damage
• Repair/replace as required
Check air filter
• Clean/replace as required
Check for spark
• See, lgnition system sectiom
• Repair/replace as required
See Troubleshooting section
Adjustment and Troubleshooting