Engine Maintenance - Murray 7800889 Operator's Manual

C
D
Figure 20: Sharpening the blade

Engine Maintenance

Carburetor Adjustment
Never make adjustments to the carburetor. The carburetor
was set at the factory to operate efficiently under most con-
ditions. However, if adjustments are required, see any Briggs
& Stratton Authorized Dealer for service.
How To Change The Oil
WARNING
Fuel and its vapors are extremely flammable and
explosive.
Fire or explosion can cause severe burns or
death.
• If you drain the oil from the top oil fill tube, the fuel tank
must be empty or fuel can leak out and result in a fire or
explosion.
Used oil is a hazardous waste product and must be disposed
of properly. Do not discard with household waste. Check
with your local authorities, service center, or dealer for safe
disposal/recycling facilities.
Remove Oil
You can drain the oil from the bottom drain hole, the side
drain hole, or from the top oil fill tube.
1. With engine off but still warm, disconnect the spark plug
wire and keep it away from the spark plug.
2. The engine is equipped with a bottom drain and/or a
side drain. Remove the oil drain plug. Drain the oil into
an approved container.
en
3. After the oil has drained, install and tighten the oil drain
plug.
4. If you drain the oil from the top oil fill tube (C, Figure
A
21), keep the spark plug end of the engine up. Drain the
oil into an approved container.
B
Add Oil
• Place engine level.
• Clean the oil fill area of any debris.
1. Remove the dipstick (A, Figure 21) and wipe with a
clean cloth.
2. Pour the oil slowly into the engine oil fill (C). Do not
overfill. After adding oil, wait one minute and then check
the oil level.
3. Install and tighten the dipstick.
4. Remove the dipstick and check the oil level. It should be
at the top of the full indicator (B) on the dipstick.
5. Install and tighten the dipstick.
Figure 21: Engine oil
Maintenance
WARNING: If you drain the oil from the top oil
fill tube, the fuel tank must be empty or fuel can
leak out and result in a fire or explosion. To
empty the fuel tank, run the engine until it stops
from lack of fuel.
C
A
B
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