
Engine Maintenance
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.
* Below 4°C (40°F) the use of SAE 30 will result in hard starting.
** Above 27°C (80°F) the use of 10W30 may cause increased oil consumption. Check
oil level more frequently.
NOTICE Synthetic oil meeting ILSAC GF-2, API certification mark and API
servicesymbolwith“SJ/CFENERGYCONSERVING”orhigher,isan
acceptable oil at all temperatures. Use of synthetic oil does not alter
required oil change intervals.
Checking Oil Level
Figure
3
7
Oil level should be checked prior to each use or at least every 8 hours of operation.
Keep oil level maintained.
1. Make sure generator is on a level surface.
2. Clean area around oil fill (3, G), remove oil cap/dipstick and wipe dipstick with
clean cloth. Replace dipstick. Remove and and check oil level.
NOTICE DO NOT screw in dipstick when checking oil level.
3. Verify oil is at full mark (7, A) on dipstick. Replace and tighten oil cap/dipstick.
Adding Engine Oil
1. Make sure generator 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 on dipstick. DO
NOT overfill.
NOTICE Overfilling with oil could cause the engine to not start, or hard starting.
• DONOToverfill.
• Ifoverthefullmarkondipstick,drainoiltoreduceoilleveltofullmarkondipstick.
4. Replace and tighten oil cap/dipstick.
Changing Engine Oil
Figure
3
If you are using your generator under extremely dirty or dusty conditions, or in
extremely hot weather, change the oil more often.
KEEP 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.
3. Clean area around oil drain plug (3, H). The oil drain plug is located at base of
engine, opposite carburetor.
4. Remove oil drain plug and drain oil completely into a suitable container.
5. Reinstall oil drain plug and tighten securely. Remove oil fill cap/dipstick.
6. Repeatsteps3and4toaddengineoilasdescribedinAdding Engine Oil.
7. Wipe up any spilled oil.
Service Air Cleaner
Figure
8
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. Loosen screws (A) and remove air cleaner cover (B).
2. Carefully remove cartridge (C) from base (D).
3. Install clean (or new) air cleaner assembly inside cover. Dispose of old filter
properly.
4. Assemble air cleaner cover onto base and tighten screws.
Service Spark Plug
Figure
9
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. Check electrode gap with wire feeler gauge and reset spark plug gap to
recommended gap if necessary (see Specifications).
4. Replace spark plug if electrodes are pitted, burned or porcelain is cracked. Use
the recommended replacement spark plug. See Specifications.
5. Install spark plug and tighten firmly.
CAUTION Avoid prolonged or repeated skin contact with used motor oil.
• Usedmotoroilhasbeenshowntocauseskincancerincertainlaboratory
animals.
• Thoroughlywashexposedareaswithsoapandwater.
12 BRIGGSandSTRATTON.COM
WARNING Unintentional sparking could cause fire or electric shock resulting
in death or serious injury.
WHEN ADJUSTING OR MAKING REPAIRS TO YOUR GENERATOR
• Disconnectthesparkplugwirefromthesparkplugandplacethewirewhereit
cannot contact spark plug.
WHEN TESTING FOR ENGINE SPARK
• Useapprovedsparkplugtester.
• DO NOT check for spark with spark plug removed.
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