For Lpg Fuel - Kubota WG972-E2 Workshop Manual

WG972-E2, DF972-E2, WSM
Symptom
Engine Speed Does
Not Increase
Defection Output
Engine Noise

[2] FOR LPG FUEL

Symptom
Engine Turns Over at
Normal Speed but
Does Not Start
Rough Low-Speed
Running and Idling
Defection Output
Probable Cause
Incorrect governor adjustment
Defective ignitor
Incorrect carburetor adjustment
Clogged air cleaner
Improper intake or exhaust valve sealing
Incorrect governor adjustment
Excessive carbon in engine
Improper valve clearance
Piston ring and cylinder worn
Clogged air cleaner
Improper valve clearance
Spark knock due to low-octane fuel or carbon
Rattles from loosely mounted external
components
Probable Cause
No LPG fuel
Vacuum lock system is defective
Mistake of throttle lever position
Lack of amount of gas supply
Idling is defective
Density of the LPG is rich
LPG shortage
Adjust
Replace
Adjust
Clean or replace
Replace
Adjust
Remove carbon
Adjust
Replace
Clean or replace
Adjust
Use higher-octane
fuel and remove
carbon
Retighten
Replenish LPG fuel
Check of taking valve
of LPG tank
Check of shut off
valve
Check of vacuum
hose
Replace of vaporizer
Set the throttle lever
to the low idle
position
Replenish LPG fuel
Check of shut off
valve
Replace of vaporizer
Draining the tar from
vaporizer
Replace of vaporizer
Repair or replace of
fuel system
Replace of vaporizer
S-2
GASOLINE / LPG ENGINE
Reference
Solution
Page
S-20
S-26
S-20
G-16
S-52
S-20
–
S-16
S-64
G-16
S-16
–
–
W1060742
Reference
Solution
Page
–
S-23
S-20
–
G-20
–
–
W1014322
KiSC issued 01, 2006 A