Power Fist 8700718 Mode D'emploi page 22

8700718
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.
NOTICE! When the carburetor 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 (1,524 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 carburetor to original factory specifications.
CHECKING MUFFLER AND SPARK ARRESTER
WARNING! Avoid contacting hot areas of this unit. Use caution around the
muffler, cylinder and other engine parts as they ca be extremely hot. Allow
hot components to cool before touching.
1. Remove the screws from the muffler cover (C), then remove the cover (Fig. 15).
2. Loosen the bolt, muffler cap,
muffler screen and then the spark
arrester (Fig. 16)
3. Check the muffler screen and
spark arrester for carbon
deposits or damage. Remove
carbon deposits with a wire
brush.
4. Install the spark arrester. Align the spark arrester projection with the hole
in the muffler pipe.
5. Install the muffler screen and muffler cap.
6. Install the outer casing and tighten the screws.
22
2,000W Inverter Generator
For technical questions call 1-800-665-8685
Fig. 15
V4.1
Fig. 16