
8/05/08
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Section 12: Troubleshooting
4220ST & 4420ST Light Utility Vehicles 700-504M
Table of Contents
Section 12: Troubleshooting
Symptoms
Probable Causes
Suggested Remedies
Battery is dead
Key switch is not in the off position.
Switch key to off position.
Disconnect and recharge battery.
Battery is worn out or defective.
Replace battery.
Starter solenoid is shorted.
Replace starter solenoid.
Battery will not charge up
Battery connections are loose or
corroded.
Clean and tighten battery connections.
Battery fluid level is low.
Add distilled water to battery cell.
Battery cell is dead.
Replace battery as soon as possible.
Battery is worn out or defective.
Brakes are sticking (won’t release)
Master cylinder linkage is out of
adjustment.
Adjust master cylinder linkage.
Master cylinder return spring is broken.
Replace master cylinder return spring.
Ground debris in brake linkage.
Clean debris from brake linkage.
Brakes don’t function
Master cylinder oil level is low.
Add brake fluid to the master cylinder.
Brake line is broken.
Replace brake line.
Brake line has air in it.
Bleed brake line and add brake fluid.
Master cylinder is defective.
Replace master cylinder.
Electrical System does not work
Electrical fuse is blown or missing.
Replace electrical fuse.
Battery connections are loose or
corroded.
Clean and tighten battery connections.
Battery is worn out or defective.
Replace battery.
Ignition switch is defective.
Replace ignition switch.
Engine backfires
Spark plug is fouled.
Replace or clean spark plug.
Fuel solenoid is stuck.
See Honda Engine Manual.
Air intake restrictor upstream of air
cleaner is missing or incorrectly
installed.
Replace or correctly install air intake
restrictor.
Throttle cable is defective or out of
adjustment.
Clean and oil throttle cable. Replace
worn or damaged cable.
Engine knocks
Engine speed is set too low.
Adjust engine idle screw.
Fuel is stale or dirty.
Replace fuel with new fuel.
Engine overheats
Engine cooling fins are plugged.
Allow engine to cool. Clean cooling
fins with high pressure air.
Engine oil level is low.
Add specified engine oil.
Carburetor air intake tube is plugged.
Clean air intake tube.
Air cleaning element is plugged or
missing.
Replace or clean air cleaner with air.