Snapper SPLH171KW, SPLH151KH, SPLH231KHE, SPA361, SPA481, SPA521, SPA611 Engine Troubleshooting

SECTION 4 - ENGINE TROUBLESHOOTING

SYMPTOM PROBLEM SOLUTION PAGE

Engine	Key OFF.
does not	Fuel Tank empty.
start..	Fuel Shut-Off Closed.
	Engine Throttle Control not at FAST
	(Rabbit) position.
	Choke NOT closed.
	Spark Plug Wire loose or disconnected.
	Blade Clutch Switch in ON position.
	Spark Plug bad.
	Dirty Air Filter.
	Traction Controls not Latched in Neutral.
Engine	Dirt or water Fuel Tank.
Starts Hard
or Loses	Air Filter dirty.
Power.	Spark Plug not gapped correctly.
	Spark Plug bad.
Engine	Spark Plug bad.
Runs	Spark Plug not gapped correctly.
Erratically.	Fuel Filter plugged or dirty.
Engine	Dirty Air Filter.
Idles Poorly.	Fuel Filter plugged
Engine	Engine Oil low in Crankcase.
Overheats.	Cooling Fins & Flywheel Screen Clogged.
Machine	Blade Mounting Bolts loose.
Vibrates	Blade out of balance.
Excessive.	Engine Mounting Bolts loose.
Engine	Mowing grass too tall.
Dies.	Mowing too fast.

Turn Key to Run.	12
Fill Fuel Tank.	11
Open Fuel Shut-Off.	12
Put Engine Throttle Control to FAST (Rabbit)12
position.
Put Throttle Control in CHOKE position.	12
Connect Spark Plug Wire.	(See Engine Manual)
Move Blade Clutch switch to OFF position.	6
Install new Spark Plug.	(See Engine Manual)
Clean Air Filter.	(See Engine Manual)
Move Traction Controls to NEUTRAL &	12
Engage Neutral Latch Lever
Drain and clean Fuel Tank, fill with fresh
Fuel.	11
Clean or install new Air Filter.	(See Engine Manual)
Check and set Spark Plug gap.	(See Engine Manual)
Install new Spark Plug.	(See Engine Manual)
Install new Spark Plug.	(See Engine Manual)
Check and gap spark plug gap.	(See Engine Manual)
Replace Fuel Filter.
Clean or replace Filter.	(See Engine Manual)
Replace Fuel Filter.
Add Oil.	(See Engine Manual)
Clean Fins & Screen
Tighten Blade Mounting Bolts.	16, 25
Sharpen and balance Blade.	25
Tighten Mounting Bolts.	(See Engine Manual)
Adjust cutting height.	16, 17
Reduce travel speed.	13

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