White Outdoor 950-959, 960-969 Trouble Shooting Guide, Trouble Possible Causes Corrective Action

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SECTION 11: TROUBLE SHOOTING GUIDE

Trouble

Possible Cause(s)

Corrective Action

 

 

 

Engine fails to start

Blade control handle disengaged.

Engage blade control handle.

 

Spark plug wire disconnected.

Connect wire to spark plug.

 

Throttle control lever not in correct

Move throttle lever to FAST or START posi-

 

starting position.

tion.

 

Fuel tank empty, or stale fuel.

Fill tank with clean, fresh gasoline.

 

Blocked fuel line.

Clean fuel line.

 

Faulty spark plug.

Clean, adjust gap or replace.

 

Engine flooded.

Crank engine with throttle in FAST posi-

 

 

tion.

 

 

 

Engine runs erratic

Unit running in START position.

Move throttle lever to FAST position.

 

Spark plug wire loose.

Connect and tighten spark plug wire.

 

Blocked fuel line or stale fuel.

Clean fuel line; fill tank with clean, fresh

 

 

gasoline.

 

Vent in gas cap plugged.

Clear vent.

 

Water or dirt in fuel system.

Drain fuel tank. Refill with fresh fuel.

 

Dirty air cleaner.

Clean air cleaner.

 

Carburetor out of adjustment.

Adjust carburetor.

 

 

 

Engine overheats

Engine oil level low.

Fill crankcase with proper oil.

 

Air flow restricted.

Remove blower housing and clean.

 

Carburetor not adjusted properly.

Adjust carburetor.

 

 

 

Occasional skip (hesitates)

Spark plug gap too close.

Adjust gap to.030”.

at high speed

 

 

 

 

 

Idles poorly

Spark plug fouled, faulty or gap too

Reset gap to.030” or replace spark plug.

 

wide.

 

 

Carburetor improperly adjusted.

Adjust carburetor.

 

Dirty air cleaner.

Clean air cleaner.

 

 

 

Excessive vibration

Cutting blade loose or unbalanced.

Tighten blade and adapter. Balance blade.

 

Bent cutting blade.

Replace blade.

 

 

 

Mower will not mulch grass

Engine speed too low.

Run at full throttle.

 

Wet grass.

Do not mow when grass is wet; wait until

 

 

later to cut.

 

Excessively high grass.

Mow once at a high cutting height, then

 

 

mow again at desired height or make a nar-

 

 

rower cutting swath (1/2 width).

 

Dull blade.

Sharpen or replace blade.

 

 

 

Uneven cut

Wheels not positioned correctly.

Place all four wheels in same height posi-

 

 

tion.

 

Dull blade.

Sharpen or replace blade.

 

 

 

Refer to separate engine manual packed with your mower for more engine related information.

NOTE: For repairs beyond the minor adjustments listed above, contact your nearest authorized service dealer or call 1-800-94WHITE.

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Contents OPERATOR’S Manual Table of Contents Important Safe Operation Practices General OperationSlope Operation ARN Slope Gauge Unpacking Instructions Disconnect Spark Plug WireRemove Unit From Carton Setting Up Your Lawn Mower Items Required For AssemblyAssembling Your Lawn Mower Know Your Lawn Mower Throttle Control Cutting Height Adjustment Lever Model 950 ThruBlade Control Handle Recoil StarterOperating Your Lawn Mower All Units Neutral Adjustment TestTo Start Engine And Engage Blade To Stop Engine And Blade Using Your Rotary MowerSide Discharge Grass Clippings Handle Height Adjustment Making AdjustmentsDrive Clutch Control Adjustment Maintaining Your Lawn Mower Shift Lever Cable AdjustmentEngine Deck Cutting Blade Removal, Replacement And SharpeningElectric Start Units Only Drive Belt Removal And Replacement Pivot baffle towards the rear of the mower Six-Speed Lower Pulley Half Belt Guard Pin OFF-SEASON Storage ServiceCaster Assembly 960-969 Only Blade ControlTrouble Shooting Guide Trouble Possible Causes Corrective ActionModels 950 thru E969 Models 950 thru Models 950 thru Models 960 thru E969 Cap Screw HH 1/4-20 x Model E969 Labels Models 950 thru Models 950 thru E969 MANUFACTURER’S Limited Warranty for