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TROUBLE SHOOTING
Possible Cause
Possible Remedy
ENGINE OPERATES IRREGULARLY OR KNOCKS
Engine incorrectly timed.
*
Spark plug dirty: wrong gap or wrong type.
Clean, reset the gap, or replace.
Poor or weak spark.
Check the spark plug and wiring.*
Carburetor setting Incorrect.
Adjust. Refer to "ADJUSTMENTS"*
Poor grade fuel or water in fuel.
Drain and use a good grade of clean fuel.
Engine overheating.
Refer to "MAINTENANCE."
Engine valves at fault.
*
Engine smokes.
Adjust the carburetor*
Oil level rises due to gasoline in crankcase.
Refer to "OPERATING IN COLD WEATHER."
Air filter becomes oil and fuel soaked.
Refer to "OPERATING IN COLD WEATHER."
Engine leaks oil .
Refer to "OPERATING IN COLD WEATHER."
Misfiring.
Refer to "OPERATING IN COLD WEATHER."
Other engine problems.
Excessive oil in air cleaner.
Be sure that oil dipstick is fully seated and all excess oil
is squeezed out of pre-cleaner foam element.
Air cleaner clogged
Engine overload.
Engine overheated
Poor fuel, too rich, or too lean a mixture ....
Fuel tank air vent clogged.
Air leakage between carburetor and engine
incorrect timing or faulty ignition
Brake drags..
LACK OF POWER
.
Service the air cleaner element. Refer to "MAINTE¬
NANCE."
.
Reduce the load.
.
Make sure air intake screen, shrouding, engine fins, and
grille are free of accumulated dirt and trash. Refer to
"MAINTENANCE."
.
Refer to "ADJUSTMENTS."
.
Open the vent in the cap.
.
Remove air cleaner. Tighten the carburetor and manifold
mounting nuts.
Replace as indicated in "MAINTE¬
NANCE."
Adjust the brake. Refer to "ADJUSTMENTS."
ENGINE OVERHEATING
Insufficient cool air, dirty air intake screen,
shroud, cooling fins, or dirty grille.
Keep the air intake area and cooling fins clean; refer to
"MAINTENANCE."
Lean carburetor adjustment.
Readjust. Refer to "ADJUSTMENTS."
Oil level incorrect.
Engine oil level must not be over the "FULL" mark or
below the "LOW" mark. Refer to "MAINTENANCE."
*See your authorized dealer.
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