V 4.0
Engine for 20 in. 4-in-1 Self-Propelled Lawn Mower
8925521
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11
HOW TO DRAIN OIL
WARNING! Do not tip the engine while draining. This can cause fuel to leak
into the oil compartment, creating a potential fire hazard. If this is
unavoidable, drain the fuel from the engine before draining the oil.
1. Remove the dipstick .
2. Place an approved container below
the oil drain plug (Fig. 3).
3. Remove the oil drain plug and allow
oil to the drain into the approved
container.
4. Install oil drain plug and tighten
with a wrench.
IMPORTANT! Used oil must be disposed
of properly. Do not pour it on the
ground, down a drain or throw it in the trash. Take the oil to your local
recycling centre or a service station for reclamation.
CARBURETOR ADJUSTMENT
Never make adjustments to the carburetor. The carburetor was set at the factory
to operate efficiently under most conditions. Only a qualified service technician
should adjust the carburetor if it is required.
MODIFYING THE CARBURETOR FOR HIGH ALTITUDES
At high altitude, the standard air-fuel mixture is too rich, causing increased fuel
consumption and decreased performance. A rich mixture will also foul the spark
plug and cause hard starting.
A qualified technician can improve high altitude performance with certain
modifications. Have your carburetor modified if the engine will routinely be
operated at altitudes above 5,000 ft (1,524 m). Even with carburetor
modification, engine power will decrease about 3.5% for each 1,000 ft (305 m)
increase in altitude. The effect of altitude on engine power will be greater than
this is if no modification is made.
Fig. 3
