Troubleshooting; For Gasoline Fuel - Kubota WG972-E2 Workshop Manual

WG972-E2, DF972-E2, WSM

1. TROUBLESHOOTING

[1] FOR GASOLINE FUEL

Symptom
Engine Will Not Turn
Over
Engine Turns Over
Slowly but Does Not
Start
Engine Turns Over at
Normal Speed but
Does Not Start
Rough Low-Speed
Running and Idling
Rough High-Speed
Running
Probable Cause
Engine jammed
Battery discharged
Starter malfunctioning
Wires disconnected
Increased resistance of moving parts
Excessively high viscosity engine oil at low
temperature
No fuel
Compression leak
Improper valve clearance
Defective ignition coil
Defective spark plug
Defective ignitor
Defective fuel system
Over choked
Flooding from carburetor
Clogged air cleaner
Defective ignition coil
Defective spark plug
Defective ignitor
Incorrect carburetor idle adjustment
Incorrect governor adjustment
Improper valve clearance
Defective ignitor
Defective spark plug
Defective ignition coil
Incorrect governor adjustment
Check engine to find
the problem and
repair it
Charge
Repair or replace
Reconnect
Repair or replace
Use specified engine
oil
Replenish fuel
Check the
compression
pressure and repair
Adjust
Replace
Adjust spark plug gap
or replace
Replace
Check fuel line and
carburetor and repair
Clean spark plug
Check carburetor and
repair / replace
Clean or replace
Replace
Adjust spark plug gap
or replace
Replace
Adjust
Adjust
Adjust
Replace
Adjust spark plug gap
or replace
Replace
Adjust
S-1
GASOLINE / LPG ENGINE
Reference
Solution
Page
–
–
S-27
–
–
G-8
–
S-14
S-16
S-25
G-10
S-26
–
–
–
G-16
S-25
G-10
G-26
S-20
S-20
S-16
S-26
G-10
S-25
S-20
W1014322
KiSC issued 01, 2006 A