Champion Power Equipment PORTAbLE GENERATOR Owner's Manual download pdf (Page 16)

13 REV 46599-20130614

ENGLISH 46599

OPERATION

Operation at High Altitude

The density of air at high altitude is lower than at sea

level. Engine power is reduced as the air mass and air-

fuel ratio decrease. Engine power and generator output

will be reduced approximately 3½% for every 1000

feet of elevation above sea level. This is a natural trend

and cannot be changed by adjusting the engine. At high

altitudes increased exhaust emissions can also result

due to the increased enrichment of the air fuel ratio.

Other high altitude issues can include hard starting,

increased fuel consumption and spark plug fouling.

To alleviate high altitude issues other than the natural

power loss, Champion Power Equipment can provide a

high altitude carburetor main jet. The alternative main

jet and installation instructions can be obtained by

contacting Customer Support. Installation instructions

are also available in the Technical Bulletin area of the

Champion Power Equipment internet site.

The part number and recommended minimum altitude

for the application of the high altitude carburetor main

jet is listed in the table below.

In order to select the correct high altitude main jet

it is necessary to identify the carburetor model. For

this purpose, a code is stamped on the side of the

carburetor. Select the correct main jet part number

corresponding to the carburetor code found on your

particular carburetor.

Operation using the alternative main jet at

elevations lower than the recommended minimum

altitude can damage the engine. For operation at

lower elevations, the standard main jet must be

used. Operating the engine with the wrong engine

conﬁguration at a given altitude may increase

its emissions and decrease fuel efﬁciency and

performance.

WARNING

Carburetor

Code

Main Jet Part Number Altitude

P19-2-R

Standard 26 .131017. 2 0 . R

3500 Feet

(1067 Meters)

Altitude 26.131017.20.01.R

P19-2-Z

Standard 26 .131017. 2 0 . Z

Altitude 26.131017.20.01.Z

P19-2-H

Standard 26 .131017. 2 0 .H

Altitude 26.131017.20.01.H

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