Poulan Pro 900 ZX manual Ignition System

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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.

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

2.Remove the spark plug with a spark plug socket wrench.

3.Check the spark plug. Replace the spark plug if fouled, the electrodes are burned and 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 .030” (0.75 mm). 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 using a spark plug wrench so that the washer is compressed. A used spark plug should be turned 1/8 of a turn from the seated position. A new spark plug should be turned 1/4 a turn from the seated position.

7.Replace the ignition cable.

IMPORTANT INFORMATION

Fitting the wrong spark plug type can damage the engine.

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

8011-054

Measure the electrode gap

English-37

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Contents Pro 900 ZX Page OPERATOR’S Manual Rider Series ContentsEnglish-2 Introduction IntroductionManufacturing Number Good ServiceSymbols and Decals Symbols and DecalsXxxx xxxxxx Objects Engine is Running Moving sharp blades under cover Safety Instructions Safety InstructionsGeneral Operation English-8 Slope Operation Personal Safety EquipmentChildren Maintenance General Maintenance Risk of sparking Important Information TransportCustomer responsibilities Controls ControlsControl Locations Tracking Motion Control LeversFuses Seat adjustment knobsBy pass linkages Refueling Blade switchIgnition Switch Choke ControlThrottle Control Hour Meter Parking BrakeMachine must be stopped before activating the parking brake Cutting height pedal AccessoriesOperation OperationTraining Starting the Engine Before StartingDepress the control for disengaging the mower deck Press in and turn the ignition key to the start position To remove cables, reverse order To start an engine with a weak batteryRunning Operating on hills Mowing Tips Stopping the Engine Moving by Hand Maintenance MaintenanceMaintenance Schedule = Described in this manual  = Not described in this manual Always use protective glasses when handling the battery BatteryTo clean battery and terminals Replacing batteryIgnition System Checking the Safety System Checking and Adjusting the Throttle Cable Checking and Adjusting the Choke CableChecking the Engines Cooling Air Intake Briggs and Stratton engine Replacing the Air FilterChecking the Parking Brake Faulty adjustment can cause an accidentReplacing the Fuel Filter Checking Tire PressuresDeck belt Checking the V-beltsDeck belt installation EZT belt To replace EZT E-Series Zeroturn Transaxle beltEZT belt removal Check the blades Checking the BladesAdjusting the Mower Deck To level deck Side-to-side adjustmentFront-to-back adjustment To adjust anti-scalp rollers Hardware Cleaning and WashingUse protective glasses when cleaning and washing Caster WheelsLubrication LubricationLubrication Schedule Engine Oil Briggs & Stratton Changing the Engine Oil Lubricating the CablesLubricating in Accordance with the Lubrication Schedule Caster wheelsOil drain valve Changing the Oil Filter Checking the oil levelTransmission Trouble Shooting Guide Trouble Shooting GuideProblem Cause Wrong fuel type English-58 Winter Storage ServiceStorage StorageWiring diagram Wiring DiagramsTechnical Data Technical DataZ4822 Equipment Torque Specifications Conformity Certificates Conformity CertificatesUSA requirements Action Date, mtr reading, stamp, sign Service JournalService Journal Delivery ServiceAfter the First 5-8 Hours Hour Service English-68 English-69 English-70 At Least Once Each Year English-72 English-73 110192Rir12/19/05