4.Replace spark plug if electrodes are pitted, burned or porcelain is cracked. Use the recommended replacement plug. See Specifications.
5.Install spark plug and tighten firmly.
Spark Arrester Service
Your engine is not
If the engine has been running, the muffler will be very hot. Allow the muffler to cool before servicing spark arrester.
WARNING
Contact with muffler area can result in serious burns.
Exhaust heat/gases can ignite combustibles, structures or damage fuel tank causing a fire.
•DO NOT touch hot parts and AVOID hot exhaust gases.
•Allow equipment to cool before touching.
•Keep at least 5 feet (1.5 m) of clearance on all sides of pressure washer including overhead.
•Code of Federal Regulation (CFR) Title 36 Parks, Forests, and Public Property require equipment powered by an internal combustion engine to have a spark arrester, maintained in effective working order, complying to USDA Forest service standard
•Remove spark arrester screen for cleaning and inspection.
•Replace if screen is damaged.
Air Cooling System
Over time debris may accumulate in cylinder cooling fins and cannot be observed without partial engine disassembly. For this reason, we recommend you have a qualified service dealer clean the cooling system (A) per recommended intervals (see Maintenance Schedule in beginning of Maintenance section). Equally important is to keep top of engine free from debris. See Clean Debris.
A 
After Each Use
Water should not remain in the unit for long periods of time. Sediments or minerals can deposit on pump parts and freeze pump action. Follow these procedures after every use:
1.Shut off engine, turn off water supply, point gun in a safe direction, press red button and squeeze trigger to relieve trapped pressure, and let engine cool.
WARNING
The high pressure stream of water that this equipment produces can cut through skin and its underlying tissues, leading to serious injury and possible amputation.
Spray gun traps high water pressure, even when engine is stopped and water is disconnected, which can cause injury.
•Keep high pressure hose connected to pump and spray gun while system is pressurized.
•ALWAYS point spray gun in safe direction, press red button and squeeze spray gun trigger, to release high pressure, every time you stop engine.
2.Disconnect hose from spray gun and high pressure outlet on pump. Drain water from hose, gun, and nozzle extension. Use a rag to wipe off the hose.
3.Empty pump of all pumped liquids by pulling recoil handle about six times. This should remove most liquid in pump.
4.Store unit in a clean, dry area.
5.If storing for more than 30 days, see Long Term Storage on next page.
WARNING
Fuel and its vapors are extremely flammable and explosive.
Fire or explosion can cause severe burns or death.
WHEN STORING FUEL OR EQUIPMENT WITH FUEL IN TANK
•Store away from furnaces, stoves, water heaters, clothes dryers, or other appliances that have pilot light or other ignition source because they can ignite fuel vapors.
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