Kubota ZG332 Operator's Manual page 104

Symptom (If)
Engine stops suddenly.
Rough engine running.
Exhaust fumes are colored.
(Black, Dark or Gray)
Exhaust fumes are colored.
(White or Blue)
Engine overheats.
Engine knocks.
Engine will not idle.
Cause
A Insufficient fuel.
A Spark plug defective.
A High tension cord defective.
A Carburetion problems.
A Ignition coil defective.
A Choke is adjusted incorrectly.
A Fuel hose or fuel filter clogged or
damaged.
A Improper or stale fuel.
(Fuel quality is poor.)
A Air cleaner is clogged.
A Wire harness defective.
A Overload.
A Low grade fuel is used.
A Fuel filter is clogged.
A Air cleaner is clogged.
A Choke is not fully opened.
A Excessive engine oil.
A Piston ring is worn or stuck.
A Engine is overloaded.
A Engine oil is insufficient.
A Low coolant level.
A Loose or defective fan belt.
A Dirty radiator core or grille screens.
A Coolant flow route corroded.
A Air cleaner element is plugged.
A Engine speed is too low.
A Operating ground speed is too fast.
A Stale or low octane fuel.
A Engine overloaded.
A Engine speed is too low.
A Spark plug defective.
A Faulty spark plug.
A Carburetion problem.
TROUBLESHOOTING
Remedy
A Refuel.
A Check the fuel valve position.
A Adjust the spark plug gap or replace it.
A See your Kubota dealer.
A See your Kubota dealer.
A See your Kubota dealer.
A See your Kubota dealer.
A Clean or replace fuel lines, and see
your Kubota dealer.
A Replace fuel and the fuel filter.
A Clean or replace the air cleaner.
A See your Kubota dealer.
A Reduce load.
A Use specified fuel.
A Replace the fuel filter.
A Clean or replace the air cleaner
element.
A Check the choke knob position.
A Reduce to the specified oil level.
A See your Kubota dealer.
A Lower speed or reduce load.
A Replenish engine oil.
A Fill cooling system to the correct level;
check radiator and hoses for loose
connections or leaks.
A Adjust or replace fan belt.
A Remove all trash.
A Flush cooling system.
A Clean or replace the air cleaner
element.
A Operate at the "FAST" speed.
A Operate the machine at the slower
ground speed.
A Use specified fuel.
A Lower ground speed or reduce load.
A Operate at the "FAST" speed.
A Adjust the spark plug gap or replace it.
A Replace the spark plug.
A See your Kubota dealer.
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