Husqvarna SG13B manual Ignition System, Fitting the wrong spark plug type can damage the engine

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MAINTENANCE

Ignition System

The engine is equipped with an electronic ignition system. Only the spark plug requires maintenance.

For recommended spark plug, see “Technical data”.

IMPORTANT INFORMATION

Fitting the wrong spark plug type can damage the engine.

1.Remove the ignition cable shoe and clean around the spark plug.

2.Remove the spark plug with a 13/16" (21 mm) spark plug socket wrench.

3.Check the spark plug. Replace the spark plug if the electrodes are burned or if the insulation is cracked or damaged. Clean the spark plug with a steel brush if it is to be reused.

4.Measure the electrode gap with a gapping tool. The gap should be 0.7-0.8 mm/0.028-0.031". Adjust as necessary by bending the side electrode.

5.Reinsert the spark plug, turning by hand to avoid damaging the threads.

IMPORTANT INFORMATION

Inadequately tightened spark plugs can cause overheating and damage the engine. Tightening the spark plug too much can damage the threads in the cylinder head.

6.After the spark plug is seated, tighten it using a spark plug wrench so that the washer is compressed. A used spark plug should be turned 1/8-¼ of a turn from the seated position. A new spark plug should be turned ½ a turn from the seated position.

7.Replace the ignition cable shoe.

8011-027

8011-054

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Contents Operator Manual Contents Introduction Decals and machine-mounted instructions Xxxx xxx xxxx xx xxxx xDecal Decal Important informationGeneral use SafetySafety Preparations Operating Storage Movement/TransportChildren Fuel System Maintenance Personal Protection Equipment Protection equipmentSET-UP Remove air cleaner and double wire clamp from engine Engine Main Components and Controls ControlsSpeed Control Lever EngineStarter Handle StarterFuel Valve Choke ControlSpark Plug Air FilterMuffler Oil Drain Oil DipstickFueling Fuel TankCentrifugal Clutch Operator Presence OP Grip Bar Control Panel On/Off Engine SwitchThrottle Brake Handle Adjustment BarPreparation OperationFuel valve Starting The EngineChoke control ThrottleEngine ON/OFF Switch Handle Engine SwitchOP Grip Bar Procedure Set the handle throttle to Fast to engage clutch Transport Operating On HillsNormal Shutdown Engine switchEmergency Shutdown BrakeMaintenance Schedule MaintenanceCyclone Filter HUSQVARNA-35 Sludge Reservoir Idle Adjustment Fitting the wrong spark plug type can damage the engine Ignition SystemDrive Belt Cutting Wheel Removing/Refitting Wheels Brake AdjustmentLeft Wheel Right WheelTwo Minute Rule CleaningLubrication Engine Oil Throttle cable Right wheelChecking Engine Oil Level Engine will not start TroubleshootingEngine is weak or runs unevenly Belt comes off Belt not staying tight after adjustmentBelt engages late or slips Cutting wheel does not rotateWinter Storage ServiceDimensions Technical DataModel SG13B EngineSchematics Delivery service Service JournalService Journal HUSQVARNA-53 Service Journal Limited Warranty Husqvarna S Obligations Under the Warranty 115 151327 IR 03/03/09