V 4.0
Engine for 20 in. 4-in-1 Self-Propelled Lawn Mower
8925521
Visit www.princessauto.com for more information
9
5. Remove the fuel cap slowly to allow the pressure to equalize.
6. Check the fuel level.
7. Fill the tank to approximately 1.5 in. (38 mm) below the top of the fuel tank
to allow for fuel expansion. Take care to not overfill the tank. It may be
necessary to lower the fuel level depending on operating conditions.
8. Reinsert the fuel tank cap and tighten.
9. Wipe up any spilled fuel before starting the engine or allow to evaporate.
Spilled fuel is both a fire hazard and an environmental hazard. Dispose of
the fuel-soaked rags in a proper hazardous waste container.
ENGINE OIL
NOTICE! Engine oil is a major factor affecting engine performance and
service life. Non-detergent and 2-stroke engine oils will damage a 4-stroke
engine and are not recommended.
High-quality detergent engine oils are acceptable if the (API) performance rating
is SF, SG, SH, SJ or higher. Always check the API service label on the oil
container for the performance rating.
1. Check the oil level before each use
with a cool engine that is level.
2. Do not use special additives.
3. SAE 10W-30 is recommended for
general, all-temperature use. Other
viscosities shown on the chart may be
used when the average temperature in
your area is within the indicated range
(Fig. 1).
4. Above 27°C (80°F), using 10W-30 oil may increase oil consumption. Check
the oil level more often.
5. Below 4°C (40°F), using SAE 30 oil will cause hard starting.
Fig. 1
