Trouble
Engine will
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not start.
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Engine
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stalls or
runs
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erratically
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TROUBLESHOOTING
Possible cause
Air filter dirty
Low fuel
Stale (old) or contaminated
fuel.
Fuel valve is defective
Clogged fuel filter
Loose spark plug
Spark plug fouled or
defective.
Spark plug gap is incorrect
Spark plug cap is not
attached
Trying to start engine while
applying throttle
Low compression
Problem with the electrical
system
Air filter dirty
Low fuel
Stale or contaminated fuel
Spark plug is fouled or
defective
Spark plug gap is incorrect
Spark plug cap is loose
Carburetor is clogged or has
water in it
Idle is not adjusted properly
Problem with the electrical
system
Low compression
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Clean or replace air
filter
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Fill with fresh fuel
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Have a service center
flush and fill with fresh
fuel.
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Replace fuel valve
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Replace fuel filter
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Tighten spark plug
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Clean or replace plug
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Gap the plug
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Attach spark plug cap
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Do not apply throttle
while starting engine
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Take to a service cen-
ter for repair
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Take to a service cen-
ter for diagnostics and
repair
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Clean or replace air
filter
•
Fill with fresh fuel
•
Have a service center
flush and fill with fresh
fuel.
•
Clean or replace plug
•
Gap the plug
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Secure the spark plug
cap
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Take to a service
center
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Take to a service
center
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Take to a service cen-
ter for diagnostics and
repair
•
Take to a service cen-
ter for repair
34
Solution