Troubleshooting Schedule - McCulloch M125-97FH Workshop Manual

Troubleshooting Schedule

Problem
Engine will not start
Starter does not turn over the engine
Engine does not run smoothly
Engine lacks power
Engine overheats
Battery does not charge
The ride-on mower vibrates
Uneven mowing
TROUBLESHOOTING CHART
Cause
See the "Checking the Safety System" section if the controls are in the wrong position
There is no fuel in the fuel tank
Spark plug defective
Dirt in the carburetor or fuel line
Starter does not turn over the engine
Bad or old fuel in the fuel tank
Incorrect fuel in the fuel tank
Battery flat
Main fuse blown. The fuse is found in front of the battery, under the engine cover
Bad contact between the cable and battery terminal
Ignition lock faulty
Faulty starter
Throttle in the choke position
Clogged air filter
Fuel tank vent blocked
Faulty spark plug
Dirt in the carburetor or fuel line
Carburetor incorrectly set
Incorrect ignition setting
Throttle in the choke position
Clogged air filter
Faulty spark plug
Dirt in the carburetor or fuel line
Carburetor incorrectly set
Engine overloaded
Air intake or cooling fins clogged
Fan damaged
Too little or no oil in the engine
Faulty spark plug
One or more battery cells faulty
Poor contact on the battery terminal cable connectors
Blades are loose
One or more blades unbalanced, caused by damage or poor balancing after sharpening
Blades blunt
Tall or wet grass
Grass build-up under the cover
Different tire pressures on right and left sides
Driving speed too high
Engine speed too low
Cutting deck rear drive belt slips
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English