Husqvarna 155, 155 AWD 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 chapter ”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 5/8" (16 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 1,02 mm/0.040". Adjust as necessary by bending the side electrode.

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

6.After the spark plug is seated, tighten it with 38-43 Nm (28-32 lbft).

7.Replace the ignition cable shoe.

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.

IMPORTANT INFORMATION

Do not turn over the engine if the spark plug or ignition cable has been removed.

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Contents Rider 155 Rider 155 AWD Page Contents Introduction Good Service Manufacturing NumberEngine Transmission III. Children Safe operation practices for ride-on mowersGeneral operation II. Slope operationSafe handling of gasoline IV. ServiceTravel and transport on public roads Towing of the machineIntended use Xxxxxxx xxxx xxxxxxxx xxx Xxxx xxxxxx Explanation of Symbols and DecalsPlacards Safety Instructions Safety InstructionsSafety Instructions Slope Operation Personal Safety EquipmentChildren Maintenance General Maintenance Always use protective glasses when handling the battery Transport Customer responsibilities Location of the controls ControlsThrottle and Choke lever Speed limiterParking brake Lift lever for the cutting unit Cutting unitLever for adjustment of cutting height SeatRefueling Cold engine OperationBefore starting Starting the engineWarm engine To remove cables, reverse order To start an engine with a weak batteryRunning Moving tips MAX1015 Stopping the engineRelease lever Rear AxleFront Axle Maintenance schedule MaintenanceAvoid using a high pressure washer or a steam cleaner Cleaning and washingRight-hand fender Dismantling of the machine hoodsEngine hood Front hoodChecking and adjustment of the steering wires Adjusting the Parking Brake Rider 155 AWD Adjusting the parking brakeInspecting the mufﬂer Adjusting the throttle wireReplacing the air filter Replacement of the fuel filterProcedures on contact with acid Check the level of the battery acidFitting the wrong spark plug type can damage the engine Ignition systemChecking the safety system Main fuse Checking the tire pressureCheck the engine’s cooling air intake Observe caution to avoid trapping your hand Fitting the cutting unitChecking the cutting unit’s parallelism Removing the cutting unit Adjusting the parallelism of the cutting unitService position for the cutting unit Placing in service positionBelt replacement on the cutting unit Remove the two support wheels from under the front hood 8009-122 6017-223 6017-225 6017-226 Checking the blades Restoring from service positionRemoval of BioClip plug Combi Lubrication Check the engine’s oil levelChanging the oil Check the transmission’s oil level Change of oil filterGeneral lubrication Lubricating the belt adjusterProblem Procedure Trouble Shooting ScheduleCover ServiceStorage Winter storageTechnical Data Technical Data Work done Date, mileage, stamp, sign ServicejournalPre-delivery service After first 5 hours´z+R23¶5L¨ Page 115 01