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V2.7
MODIFYING THE CARBURATOR 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 carburator
modified if the engine will routinely be operated at altitudes above 5,000 ft (1,500 m). Even with carburator
modification, engine power will decrease about 3.5% for each 1,000 ft (300 m) increase in altitude. The effect of
altitude on power will be greater than this is if no modification is made.
CAUTION! When the carburator has been modified for high altitude operation, the air fuel mixture will be too lean
for low altitude use. Operation at altitudes below 5,000 ft (1,500 m) may cause the engine to overheat and result in
serious engine damage. When using this engine at low altitudes, have a qualified technician return the carburator to
original factory specifications.
STORAGE
WARNING! Keep the engine away from sources of open flame such as the pilot light of a furnace, stove, water
heater or other appliances when storing with fuel in the tank, as an ignition source can ignite gasoline vapours.
WARNING! Transport the engine with an empty fuel tank or with the fuel cock secured in the OFF position.
Proper storage preparation is essential for keeping your engine in good condition. The steps below will help to keep
rust and corrosion from impairing your engine's function and appearance, and will make the engine easier to start
when used again.
The following precautions should be taken if storing your engine for a period exceeding 30 days, or for
seasonal storage.
•
Store in a clean dry area.
•
Change the oil while the engine is still warm.
•
Clean the debris, chaff or grass from the engine's surface.
•
Drain all fuel from the fuel tank into a proper receptacle for storage.
•
Remove the spark plug. Place 1 teaspoon (5 ml) of oil into the spark plug hole.
•
Pull starter rope slowly 8-10 times to properly coat the cylinder bore and piston for storage. Replace spark
plug and tighten. Any residual oil will burn off in subsequent starts. This may result in white smoke emission
from muffler.
•
Store this engine in horizontal position with the spark plug up. Do not store or transport with the spark
plug down.
NOTE: Storing or transporting with the spark plug down will result in hard starting and/or
engine smoking.
14
270cc OHV Gas Engine with Electric Start
For technical questions call 1-800-665-8685
8315517
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