engine Maintenance
warning Unintentional sparking could cause fire or electric shock resulting
in death or serious injury.
wHen adJusting or Making rePairs to your Pressure wasHer
• Disconnect the spark plug wire from the spark plug and place the wire where it
cannot contact spark plug.
wHen testing For engine sPark
• Use approved spark plug tester.
• DO NOT check for spark with spark plug removed.
oil
oil recommendations
We recommend the use of Briggs & Stratton Warranty Certified oils for best
performance. Other high-quality detergent oils are acceptable if classified for service
SF, SG, SH, SJ or higher. DO NOT use special additives.
Outdoor temperatures determine the proper oil viscosity for the engine. Use the chart
to select the best viscosity for the outdoor temperature range expected.
* B elow 4°C (40°F) the use of SAE 30 will result in hard starting.
** A bove 27°C (80°F) the use of 10W30 may cause increased oil consumption. Check
oil level more frequently.
23
Figure
checking oil Level
Oil level should be checked prior to each use or at least every 8 hours of operation.
Keep oil level maintained.
1. Make sure pressure washer is on a level surface.
2. Remove oil dipstick and wipe dipstick with clean cloth. Replace and tighten
dipstick. Remove and check oil level.
3. Verify oil is at Full mark (top hole) (a) on dipstick. Replace and tighten dipstick.
adding engine oil
1. Make sure pressure washer is on a level surface.
2. Check oil level as described in Checking Oil Level.
3. If needed, slowly pour oil into oil fill opening to the Full mark (top hole) on
dipstick. DO NOT overfill.
NOTICE Overfilling with oil could cause the engine to not start, or hard starting.
• DO NOT overfill.
• If over the Full mark on dipstick, drain oil to reduce oil level to Full mark on dipstick.
4. Replace and tighten dipstick.
changing engine oil
If you are using your pressure washer under extremely dirty or dusty conditions, or in
extremely hot weather, change the oil more often.
caution Avoid prolonged or repeated skin contact with used motor oil.
• Used motor oil has been shown to cause skin cancer in certain laboratory
animals.
• Thoroughly wash exposed areas with soap and water.
K EEP OUT OF REACH OF CHILDREN. DON'T POLLUTE. CONSERVE
RESOURCES. RETURN USED OIL TO COLLECTION CENTERS.
change the oil while the engine is still warm from running, as follows:
1. Make sure unit is on a level surface.
2. Disconnect the spark plug wire from the spark plug and place the wire where it
cannot contact spark plug.
12
3. Clean area around oil fill, remove oil fill cap/dipstick. Wipe dipstick clean.
4. Clean area around oil drain plug. The oil drain plug is located at base of engine,
opposite carburetor.
5. Remove oil drain plug and drain oil completely into a suitable container.
6. Reinstall oil drain plug and tighten securely.
7. Repeat steps 3 and 4 to add engine oil as described in Adding Engine Oil.
8. Wipe up any remaining oil.
9. Reconnect spark plug wire to spark plug.
24
Figure
service air cleaner
Your engine will not run properly and may be damaged if you run it with a dirty air
cleaner. Service more often if operating under dirty or dusty conditions.
to service the air cleaner, follow these steps:
1. Remove the knob (a) and air filter cover (B).
2. Lift the cartridge (c) off of the base (d).
3. Remove the pre-cleaner (e) from the cartridge. Discard the old cartridge.
4. Wash the pre-cleaner in liquid detergent and water.
5. Let the pre-cleaner thoroughly air dry. DO NOT oil the pre-cleaner.
6. Assemble the pre-cleaner onto the new cartridge.
7. Install the new cartridge and pre-cleaner into the base and onto stud (F). Make
sure cartridge fits securely into base.
8. Install air filter cover and secure with knob. Make sure knob is tight.
25
Figure
service spark Plug
Changing the spark plug will help your engine to start easier and run better.
1. Clean area around spark plug.
2. Remove and inspect spark plug.
3. Replace spark plug if electrodes are pitted, burned or porcelain is cracked. Use
the recommended replacement plug. See Specifications.
4. Check electrode gap with wire feeler gauge and reset spark plug gap to
recommended gap if necessary (see Specifications).
5. Install spark plug and tighten firmly.
inspect Muffler and spark arrester
Inspect the muffler for cracks, corrosion, or other damage. Remove the spark arrester,
if equipped, and inspect for damage or carbon blockage. If replacement parts are
required, make sure to use only original equipment replacement parts.
warning Exhaust heat/gases could ignite combustibles, structures or
damage fuel tank causing a fire, resulting in death, serious
injury and/or property damage.
Contact with muffler area could cause burns resulting in
serious injury.
• DO NOT touch hot parts and AVOID hot exhaust gases.
• Allow equipment to cool before touching.
• Keep at least 1.5 m (5 ft.) of clearance on all sides of pressure washer including
overhead.
• Contact the original equipment manufacturer, retailer, or dealer to obtain a spark
arrester designed for the exhaust system installed on this engine.
• Replacement parts must be the same and installed in the same position as the
original parts.
26
Figure
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 an
authorized Briggs & Stratton service dealer clean the cooling system 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.
carburetor adjustment
The carburetor on this engine is low emission. It is equipped with a non-adjustable idle
mixture valve. Top speed has been set at the factory. If adjustment is required, see an
authorized service dealer.
caution Excessively high operating speeds could result in minor injury
and/or pressure washer damage.
Excessively low speeds impose a heavy load.
• DO NOT tamper with governor spring, links or other parts to increase engine
speed. Pressure washer supplies correct rated pressure and flow when running at
governed speed.
• DO NOT modify pressure washer in any way.
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