Snapper S21, SP21, SPV21, SPV21S, SPV21E Troubleshooting, Problem, Probable Cause

TROUBLESHOOTING

PROBLEM		PROBABLE CAUSE			CORRECTIVE ACTION
Engine Will Not Start	1. Fuel tank empty.		1.	Fill fuel tank with fresh fuel.
Using Recoil Starter	2. Engine needs priming.		2.	Prime. Check Engine Manual for Instructions.
	3.	Spark plug wire disconnected.	3.	Place spark plug wire onto spark plug.
Engine Will Not Start	1. Fuel tank empty.		1.	Fill fuel tank with fresh fuel.
(Electric Start Models)	2. Engine needs priming.		2.	Prime. Check Engine Manual for Instructions.
	3.	Spark plug wire disconnected.	3.	Place spark plug wire onto spark plug.
	4.	Wiring harness disconnected.	4.	Connect wiring harness.
	5.	Battery dead.	5.	Charge or replace battery.
Engine Stalls or Stops	1. Blade control is released or is not being held securely		1.	Blade control should be held securely against
After Running		against handle.			handle at all times during operation of mower.
	2.	Fuel tank empty.	2.	Fill with fuel to proper level.
	3.	Engine air pre-cleaner and or air cleaner dirty.	3.	Clean free of all debris.
	4.	Spark plug defective or gap set improperly.	4.	Service spark plug.
	5.	Water, debris or stale fuel in fuel system.	5.	Drain and clean fuel system.
Engine Loses Power	1. Engine air pre-cleaner or air cleaner dirty.		1.	Clean or replace filters.
	2.	Spark plug faulty.	2.	Service spark plug.
	3.	Water, debris or stale fuel in fuel system.	3.	Drain and clean fuel system.
Excessive Vibration	1. Damaged, out of balance or bent mower blade.		1.	Service mower blade.
	2.	Loose blade components.	2.	Service and tighten loose parts.
	3.	Loose or missing air lift (if equipped).	3.	Replace air lifts. Tighten to proper torque.
	4.	Lumpy or frayed belt.	4.	Replace belt.
Mower Will Not Move	1. Build-up of debris on or around wheel drive		1.		Clean debris.
Loss Of Traction		components.
(Self-Propelled Models)	2. Transmission clutch cable adjustment required.		2.		Adjust transmission clutch cable.
	3. Drive belt requires replacement.		3.		Replace drive belt.
	4. Damaged transmission.		4.		Contact authorized SNAPPER dealer.
			1.		Adjust transmission clutch cable.
Transmission Noise	1. Transmission clutch cable adjustment required.
(Self-Propelled Models)	2. Damaged transmission.		2.		Contact authorized SNAPPER dealer.
Ground Speed	1. Build-up of debris on or around ground speed control		1.		Clean debris.
Too Fast / Too Slow;		components.
Unable to Adjust
Ground Speed
(Variable-Speed Self-	2. Ground speed control adjustment required.		2.		Adjust ground speed control.
Propelled Models)
	3. Drive belt requires replacement.		3.		Replace drive belt.
	4. Damaged transmission.		4.		Contact authorized SNAPPER dealer.
Cutting Grass	1. Cutting height too low or high.		1.		Adjust cutting height.
Improperly	2. Forward ground speed too fast.		2.		Move ground speed control to a slower speed.
	3. Terraced cut, side to side.		3.		Adjust height of cut with height adjust levers.
	4. Excessive deck pitch, front to rear.		4.		Adjust height of cut with height adjust levers.
	5. Cutting blade dull or damaged.		5.		Sharpen cutting edges or replace blade.
Poor Grass Discharge	1. Forward speed too fast.		1. Move ground speed control to a slower speed.
	2. Grass is wet.		2.		Mow when grass is dry.
	3. Excessively worn or damaged blade.		3.		Service mower blade.
	4. Build up of grass clippings and debris under deck.		4.		Clean deck.
	5. Improper blade installed on deck.		5.		Install proper SNAPPER blade.
	6. Blade installed improperly on deck.		6.		Install blade properly.
Oil Leaking	1. Leaking engine case.		1.		Contact authorized SNAPPER dealer.
			2.		Check and tighten drain plug.
			3.		Make sure dip stick or oil filler cap is securely
					in place.

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