Craftsman 247.388240 owner manual Problem Possible Cause

Page 19

PROBLEM

POSSIBLE CAUSE

Engine fails to start 1. Blade control handle disengaged

2.Spark plug wire disconnected

3.Throttle controllever not in starting position

4.Fuel tank empty, or stale fuel

5.Blocked fuel line

6.Faulty spark plug

Engine runserratic 1. Spark plug wire loose

2. Blocked fuel line or stale fuel

CORRECTIVE ACTION

1.Engage blade control handle.

2.Connect wire to spark plug.

3.Move throttle lever to starting position.

4.Fill tank with fresh, clean fuel. 5,Clean fuel line.

6, Clean, adjust gap or replace.

1, Connect and tighten spark plug wire. 2, Clean fuel line, fill tankwith clean,fresh

Engine overheats

Occasional skip (hesitates) at high speed

i Idles poorly

Excessive vibration

Mower will not mulch grass

3.Vent in gas cap plugged 4.Water or dirt in fuel system

5.Dirty air cleaner

1.Engine oil level low

2.Air flow restricted

1.Spark plug gap too close

1.Spark plug fouled, faulty, or gap too wide

2.Dirty air cleaner

1.Cutting blade loose or unbalanced

2.Bent cutting blade

3.Bent engine crankshaft

1.Wet grass

2.Excessively high grass

gasoline. 3, Clear vent.

4, Drain fuel tank. Refill with fresh fuel.

5.Clean air cleaner. Refer to Maintenance sectionof this manual.

1, Fill crankcase with proper oil.

2.Clean lawn mower engine.

1.Adjust gap to .630 inches.

1.Reset gap to .030 inches or replace spark plug.

2.Clean air cleaner followinginstructions on page 13.

1.Tighten blade and adapter, balance blade.

2.Replace blade.

3.Contact your SEARS Service Center.

1.Wait until later to cut.

2. Mow once at a high cuttingheight, then

mow again at desired height. Make a

narrower cutting swath (1/2) width. Do

not cut off more than 1/3 of the total

length.

3.Dull blade

Uneven cut

1. Wheels not in same height position

2. Dull blade

3. Sharpen or replace blade,

1. Place all four wheels in same relative

height position.

2.Sharpen or replace blade.

please contact your nearest SEARS Service Center. For repairs beyond the minor adjustments listed above,

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Contents Sears, Roebuck & Co., Hoffman Estates, IL 60179, U.S.A CraftsmrnProduct Specifications General Operation Slope Operation ServiceChildren Your Responsibility Siavertichtanoho or a TR Assembling Handle Disconnecting Spark PlugRemoving Unit From Carton Loose PadsAttaching Grass Catcher to Mower Attaching Starter RopeAttaching Discharge Chute Assembling Grass CatcherKnow Your Lawn Mower Meets Cpsc Blade Safety StandardsStarting Engine Gas And Oil Fill-UpUsing Grass Catcher Using Your Lawn MowerHeight Adjustment Ustomer Responsibilities CleaningEngine Maintenance General RecommendationsTo Change Engine Oil Lubrication Blade CareServicing Blade Engine AdjustmentsAdjusting Cutting Height Adjusting Handle HeightMower EngineOther Problem Possible Cause Sears Craftsman 4.0 H.P. Lawn Mower Model 731-1405 300 This en inecouldhavebeenbuittwith590694starter Carburetor No Recoil Starter Part