
Operating the Machine at High
Altitude
When operating in high altitudes, the carburetor jets may have
to be changed to obtain optimum engine performance. Use
the chart below to determine which carburetor jet is required
for the operating altitude. Order the carburetor jets from your
Briggs and Stratton Dealer.
Carburetor Jet Size
Altitude
Left Carburetor Jet
Right Carburetor Jet
Standard 274 m
(900 ft)
150
156
1524 m (5000 ft)
146
152
1981 m (6500 ft)
144
150
2743 m (9000 ft)
140
146
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