Craftsman 388, 731 Engine Fuel System, Troubleshooting Chart Problem Cause, Engine OIL, Cylinder

Page 15

ENGINE

FUEL SYSTEM

IMPORTANT: It is important to prevent gum deposits from forming in essential fuel system parts such as carburetor, fuel filter, fuel hose, or tank during storage. Also, experience indicates that alcohol blended fuels (called gasohol or using ethanol or methanol) can attract moisture which leads to separation and formation of acids during storage. Acidic gas can damage the fuel system of an engine

while in storage.

1.Drain the fuel tank.

2.Start the engine and let it run until the -

fuel lines and carburetor are empty.

Never use engine or carburetor cleaner products in the fuel tank or permanent damage may occur.

Use fresh fuel next season.

NOTE= Fuel stabilizer is an acceptable alternative in minimizing the formation of

•fuel gum deposits during storage. Add stabilizer to gasoline in fuel tank or

storage container. Always follow the mix ratio found on stabilizer container. Run

engine at least 10 minutes after adding stabilizer to allow the stabilizer to reach

the carburetor. Do not drain the gas tank and carburetor if using fuel stabilizer.

TROUBLESHOOTING

 

CHART

PROBLEM

 

CAUSE

 

Does not start

1.

Dirty air filter.

 

2.

Out of fuel,

 

3.

Stale

fuel.

 

4.

Water

in fuel.

5. Spark plug wire is disconnected.

ENGINE OIL

Drain oil (with engine warm) and replace with clean engine oil. (See "ENGINE" in the Maintenance section of this manual).

CYLINDER

1, Remove spark plug.

2. Pour one ounce (29 ml) of oil through spark plug hole into cylinder.

3, Pull starter handle slowly a few times to distribute oil.

4, Replace with new spark plug,

OTHER

Do not store gasoline from one season to another,

Replace your gasoline can if your can starts to rust, Rust and/or dirt in

your gasoline will cause problems,

if possible, store your unit indoors and cover it to give protection from dust and dirt.

Cover your unit with a suitable protective cover that does not retain moisture. Do not use plastic. Plastic cannot breathe which allows conden-

sation to form and will cause your unit to rust,

IMPORTANT: Never cover mower while

engone and exhaust areas are still warm.

A, CAUTION:Never store the lawn mower with gasoline in the tank inside a building where fumes may reach an open flame or spark, Allow the engine to cool before storing in any enclosure,

CORRECTION

1.Clean/raplace air filter.

2.Fill fuel tank.

3.Drain tank and refill with fresh clean fuel.

4.Drain fuel tank and carburetor and refill tank with fresh gasoline.

5.Connect wire to plug.

6.

Bad spark plug.

6.

Replace

spark plug.

7.

Loose blade or broken

7.

Tighten

blade bolt or

 

blade adapter.

 

replace

blade adapter.

8.

Control bar in released

8.

Depress

control bar to

 

position.

 

handle.

 

9.

Control bar defective.

9.

Replace

control bar.

15

Image 15
Contents Jcraftsmanj General Operation Limited TWO Year Warranty on Craftsman Power MowerIII. Children IV, ServiceII. Slope Operation Do notLawn Mower Performance Lawn Mower MaintenanceTo Remove Lawn Mower from Carton Howto SET Upyour Lawn Mower To Unfold HandleTo Install Atiachments UpperMeets Cpsc Safety Requirements Know Your Lawn MowerMulcherdoor Convert Mower To Adjust Cutting HeightHowto Useyour Lawn Mower Engine Speed Control Engine Zone ControlADD Gasoline To Start EngineTo Stop Engine Before Starting Engine ADD OILMulching Mowingtips MowingtipsGeneral Recommendations Tion ChartMaintenance Schedule LubricationLawn Mower TiresBlade Care To Change Engine OIL EngineGrass Catcher LubricationMuffler Lawn Mower To Adjust CUI-FING HeightTo Adjust Handle CleaningLawn Mower HandleCarburetor Cylinder Troubleshooting Chart Problem CauseEngine Fuel System Engine OILBuildup of grass, leaves Loss of power Rear of lawn mowerContact a Sears or other qualified service center Dirty air filterCraftsman Rotary Lawn Mower - Model no UpperHane Craftsman Rotary Lawn MOWER-- Model noCraftsman 4-CYCLE Engine ++++ ,7o+ 332 304 363@ 1210 689 OEmissions Label L.EASKETSeT CnAFrSMA,4-CYCLE Engine 231082 Craftsman Cycle EngineGet it fixed, at your home or ours