Husqvarna MZ6128/966613103 warranty Troubleshooting Guide, Problem Cause

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TROUBLESHOOTING GUIDE

Problem

 

Cause

 

 

 

 

Engine will not start

Blade switch is engaged

 

• Steering controls are not locked in the neutral position

 

• Parking brake is not activated

 

Battery is dead

 

• Contamination in the carburetor or fuel line

 

• Fuel supply is closed

 

• Clogged fuel filter or fuel line

 

Faulty ignition system

 

 

 

 

Starter does not turn the engine over

Dead battery

 

• Poor contacts on the battery terminal cable connections

 

Fuse blown

 

Ignition system faulty

 

• Fault in the starter safety circuit. See Safety System in

 

 

Maintenance section

 

 

 

 

Engine runs rough

Faulty carburetor

 

• Clogged fuel filter or jet

 

• Clogged ventilation valve on the fuel cap

 

• Fuel tank nearly empty

 

Fouled spark plug

 

• Spark plug is loose

 

• Rich fuel mixture or fuel-air mixture

 

Wrong fuel type

 

• Water in the fuel

 

Clogged air filter

 

 

 

 

Engine seems weak

Clogged air filter

 

Fouled spark plugs

 

Carburetor incorrectly adjusted

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Contents Operator Manual All rights reserved Contents Page Introduction Good Service Manufacturing NumberSymbols and Decals Xxxx xxxxxx xxxxx xxxx Xxxxxx xxxxxxxxx. xx xxxxxxxxWhole body Safety Safety InstructionsGeneral Operation Never take passengers Personal Safety Equipment Slope OperationBe extra cautious when driving on slopes Safe Handling of Gasoline General Maintenance Risk of sparking Transport Spark ArrestorControls Control LocationsMotion Control Levers Hour Meter Choke ControlTracking Knob Blade Switch Ignition SwitchParking Brake Fuses Cutting Height Adjuster Seat Adjustment LeverFuel Shut Off Valve Fuel Tank Hydro Release LeversOperation TrainingSteering Before Starting Starting the Engine Open the fuel tank valve Press in and turn the ignition key to the start position Weak Battery To remove cables, reverse orderRunning Operating on Hills Stopping the Engine Mowing Tips Moving Machine By Hand Maintenance Maintenance ScheduleMaintenance Battery Replacing batterySafety System Tire PressuresDeck Belt Installation Deck BeltDeck Belt Removal Belt Installation Pump BeltBelts Replacing Pump BeltCutting Blades Adjusting the Mower Deck Leveling deckAnti-scalp rollers Cleaning Use protective glasses when cleaning and washingCaster Wheels HardwareLubrication Lubrication ScheduleGeneral Wheel and Deck Zerks Front Wheel MountFront Wheel Bearings Deck SpindlesTransaxle Transmission Fluid Change Troubleshooting Guide Problem CauseTroubleshooting Guide Service StorageWinter Storage Wiring Diagram Technical Data Torque SpecificationsHex Head Cap Screws Standard HardwareMZ6128 EngineConformity Certificates USA requirementsService Journal Delivery ServiceAction Stamp, signAfter 10 hours Date, mtr reading Stamp, signDaily Service Hour Service Service Journal Service Journal At least once each year Action Date, mtr reading Stamp, sign Page 115 523327 Rev a 2012-09-15