163
MAINTENANCE
Carburetor Adjustments
If the vehicle is to be operated at various altitudes and temperatures, certain adjust-
ments can be made to improve its operation and driveability. Above 6000 feet (1800
m) the engine air/fuel mixture becomes overly rich. An engine loses approximately
3% of its power for each 1000 foot (304.8 m) increase in elevation. Although this pow-
er cannot be regained, changes to the carburetor and drive system can be made to
allow efficient operation. These changes include:
1. Carburetor re-jetting to compensate for altitude and/or temperature changes.
2. Transmission convertor modification to adjust for engine horsepower loss during
high altitude operation. Contact your dealer.
3. On 2 cycle models, air screw adjustments can be made to compensate for temper-
ature changes and/or changes in altitude.
NOTE:
Contact your dealer for altitude adjustments. They have the training and spe-
cial tools required to perform all necessary modifications for you.
Summary of Contents for Sportsman 90
Page 1: ......
Page 3: ...Indicates a potential hazard which could result in severe injury or death ...
Page 5: ...ii ...
Page 17: ...R 1 RIDER S SECTION ...
Page 27: ...R 11 KNOW YOUR MACHINE 1 2 3 ...
Page 42: ...6 GENERAL SAFETY AND DESCRIPTION OF LABELS 1 WARNING ...
Page 50: ...14 GENERAL SAFETY AND DESCRIPTION OF LABELS 5 6 ...
Page 52: ...16 GENERAL SAFETY AND DESCRIPTION OF LABELS 7 10 8 8 ...
Page 83: ...47 VEHICLE IDENTIFICATION NUMBERS 2 1 ...
Page 120: ...84 RIDING ...
Page 122: ...86 RIDING Making Turns ...
Page 126: ...90 RIDING Traveling Uphill 15_ Maximum ...
Page 128: ...92 RIDING Sidehilling ...
Page 130: ...94 RIDING Traveling Downhill ...
Page 136: ...100 RIDING Trail Obstacles ...
Page 138: ...102 RIDING Parking on an Incline ...
Page 159: ...123 MAINTENANCE Lubrication Recommendations Operating Range 2 Transmission plug ...
Page 161: ...125 MAINTENANCE NOTE Hours are based on 10 mph average 4 ...
Page 207: ...171 WIRING DIAGRAM ...
Page 208: ...172 WIRING DIAGRAM ...