SECTION 4 - ENGINE TROUBLESHOOTING

SYMPTOM

PROBLEM

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.

SOLUTION

PAGE

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

18

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Snapper SPLH152KW, SPLH172KW, SPA361, SPA481, SPA521, SPA611 Engine Troubleshooting, Symptom Problem, Solution