Murray 387004x48A manual Trouble Shooting Chart, Problem The engine will not start

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TROUBLE SHOOTING CHART

PROBLEM: The engine will not start.

1.Follow the steps, “How To Start The Engine” in this book.

2.Electric-Start Models: Clean the battery terminals. Tighten the cables.

3.Drain the fuel tank. Clean the fuel line. Replace the fuel filter.

4.Remove the spark plug(s). Move the throttle to the SLOW posi- tion. Turn the ignition key to the ON position. Try to start the en- gine several times. Install the spark plug.

5.Replace the spark plug.

6.Adjust the carburetor.

PROBLEM: The engine will not turn over.

1.Follow the steps, “How To Start The Engine” in this book.

2.Electric-Start Models: Check the level of the acid in the battery. If needed, add water. Charge the battery.

3.Replace the fuse.

4.Check the wiring harness for damage or a loose connection. Repair the damaged wire.

5.Electric-Start Models: replace the solenoid. Recoil-Start Mod-

els: replace the module.

PROBLEM: The engine is difficult to start.

1.Adjust the carburetor.

2.Replace the spark plug.

3.Replace the fuel filter.

PROBLEM: The engine does not run smooth or has a loss of power.

1.Check the oil.

2.Clean the air filter.

3.Clean the air screen.

4.Replace the spark plug.

5.The engine is working too hard. Use a lower gear.

6.Adjust the carburetor.

7.Replace the fuel filter.

PROBLEM: The engine does not run smooth at fast speed.

1.Replace the spark plug.

2.Adjust the throttle control.

3.Clean the air filter.

4.Replace the fuel filter.

PROBLEM: The engine stops when the blades are engaged.

1.To activate the seat sensor, always sit in the middle of the seat.

2.Check the wiring harness for damage or a loose connection. Repair the damaged wire.

PROBLEM: On slopes, the engine stops.

1.Mow up and down slopes. Never mow across a slope.

2.To activate the seat sensor, always sit in the middle of the seat.

PROBLEM: The engine will not idle.

1.Replace the spark plug.

2.Clean the air filter.

3.Adjust the carburetor.

4.Adjust the throttle control.

5.Drain the fuel tank. Clean the fuel line. Replace the fuel filter.

PROBLEM: A hot engine causes a decrease in power.

1.Clean the air screen.

2.Check the oil.

3.Adjust the carburetor.

4.Replace the fuel filter.

PROBLEM: Excessive vibration.

1.Replace the blade.

2.Check for loose engine bolts.

3.Decrease the air pressure in the tires.

4.Adjust the carburetor.

5.Check for a damaged belt or damaged pulley. Replace the damaged parts.

PROBLEM: The grass does not discharge correctly.

1.Stop the engine. Clean the mower housing.

2.Raise the height of cut.

3.Replace or sharpen the blade(s).

4.Move the shift lever to a slower speed.

5.Move the throttle control to the FAST position.

6.Replace the spring for the blade idler.

PROBLEM: The mower housing does not cut level.

1.Check the air pressure in the tires.

2.Adjust the level of the mower housing.

3.Check the front axle. If the front axle does not freely pivot, loos- en the axle bolt(s).

PROBLEM: The mower blades will not rotate.

1.Check the mower drive belt. Make sure the belt is installed cor- rectly.

2.Replace the mower drive belt.

PROBLEM: The unit will not move when the clutch is engaged.

1.Check the motion drive belt. Make sure the belt is installed correctly.

2.Adjust the clutch.

3.Replace the motion drive belt.

PROBLEM: The unit moves slower or stops when the clutch is engaged.

1.Adjust the clutch.

2.Replace the motion drive belt.

PROBLEM: When the clutch/brake pedal is released, belt noise can be heard.

1.Temporary belt noise does not change the operation of the unit. If belt noise is continuous, check the routing of the belt. Make sure the belt is inside all belt guides.

2.If the noise is continuous, adjust the clutch.

PROBLEM: The rear wheels spin over uneven terrain.

1.Check the front axle. If the front axle does not freely pivot, loos- en the axle bolt(s).

PROBLEM: The transaxle is difficult to shift between gears with the engine running and the clutch depressed.

1.Check the clutch adjustment to make sure the belt stops when the clutch pedal is depressed with the transaxle in (N) neutral.

2.Check the belt guides around the transaxle drive pulley. Make sure the belt guides do not touch the pulley.

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Contents Model Table of Contents OWNER’S Information Responsibility of the OwnerII. Slope operation Safe Mowing Guide Safe Mowing Guide Safe Mowing Guide Steps to Follow Before MowingInternational Pictorials International PictorialsAssembly AssemblyMaintenance Free Battery HOW to Charge the Maintenance Free BatteryHOW to Install the Seat HOW to Assemble the Steering WheelHOW to Prepare the Engine Check the Level of the Mower HousingIMPORTANT! Before YOU Start Mowing Check the TiresLift Lever OperationLocation of Controls Attachments HOW to USE the Throttle ControlHOW to USE the Shift Lever HOW to SET the Parking Brake HOW to Change the Cutting HeightHOW to Stop the Unit HOW to Transport the UnitHOW to Operate with the Mower Housing HOW to Operate the Unit on HillsHOW to Start the Engine HOW to Start with a Weak BatteryBefore Starting the Engine CarburetorOperating Tips Mowing and Bagging TipsMaintenance Maintenance ChartHOW to Check the Muffler General RecommendationsInspect Blade HOW to Remove and Install the BladeHOW to Sharpen the Blade HOW to Adjust the Blade Rotation Control HOW to Check and Adjust the Drive Brake HOW to Check and Adjust the ClutchHOW to Clean the Battery Where to Lubricate HOW to Check the Fuel FilterHOW to Remove the Mower Housing HOW to Install the Mower HousingSide to Side Adjustment HOW to Level the Mower HousingFront to Back Adjustment HOW to Replace the Motion Drive Belt Removal HOW to Replace the Mower Drive Belt HOW to Install the Wheels Front WheelHOW to Replace the Fuse HOW to Replace the Light BulbHOW to Clean the Mower Housing BatteryTrouble Shooting Chart Problem The engine will not startMURRAY, INC. Lawn Mower Central Parts Distributors Repair Parts Chassis & HoodKey Description Repair Parts Motion Drive Motion Drive Steering Key Part Description Mower Housing Suspension Repair Parts Mower Housing Key Description Engine Mount Repair Parts Electrical System Key Part Description 040733L 040733L 040733L Index Lawn Tractor Accessories