Oil Change; Air Filter; Spark Plug - Briggs & Stratton 090600 Manual

Oil Change

Change oil after the first 5 hours of operation.
After that, change oil after every 50 hours of
operation. Change oil more often if engine is
operated in dirty or dusty conditions, under
heavy loads, or in high ambient temperatures.
1. Remove oil drain plug from side or bottom
of engine and drain oil while the engine is
1
still warm.
2. Install drain plug.
3. Fill crankcase with correct amount of new
1 oil.
4. Start engine and run at idle for a minute or
so.
5. Shut engine off and wait for oil to settle
back into the cylinder.
6. Check dipstick. If necessary, add more oil
slowly to bring level to FULL mark on
dipstick.

Air Filter

A correctly serviced air filter protects internal
engine parts from airborne dirt and dust. Poor
filter maintenance will allow dirt and dust to be
drawn into the engine, causing wear to the intake
system and contamination of the oil. Dirt in the oil
forms an abrasive mixture which wears down
moving parts.
Fuel and its vapors are extremely flam-
mable and explosive.
Fire or explosion can cause severe
burns or death.
• Never start or run the engine with the air
cleaner assembly or the air filter removed.
NOTE: Do not use pressurized air or solvents to
clean the filter. Pressurized air can damage the
filter and solvents will dissolve the filter.
1. Remove air cleaner cover (A and B,
Figure 1-2). Remove pre-cleaner (C) from
cartridge (D).
8
WARNING
2. Gently tap air filter cartridge on a hard
surface to loosen debris. Replace
cartridge if very dirty.
3. Wash foam pre-cleaner in warm, soapy
water, then rinse and allow to air dry.
4. Reassemble the air cleaner system.
Figure 1 - 2

Spark Plug

The spark plug should be replaced every year.
NOTICE
Spark plugs have different thread lengths
and heat ranges. When changing a spark
plug, use only the specified replacement,
otherwise engine damage could occur.
NOTE: In some areas, local law requires using
resistor spark plugs to suppress radio frequency
interference.
1. Disconnect spark plug wire.
2. Remove and inspect spark plug for wear
and damage. Replace spark plug if
electrodes are burned away, or the
porcelain is cracked.