90-826148R2 MARCH 19973B-10 - FUEL SYSTEM
Main (High Speed) Jet Adjustment
The carburetor has a fixed high speed jet. Extreme
changes in weather (temperature and humidity) and/
or elevation may result in a too lean or rich fuel mix-
ture at wide-open-throttle, which may require a
change in the high speed jet. A smaller size main jet
will lean the fuel mixture, and a larger size jet will en-
rich the fuel mixture.
52372
a
b
c
a - Idle Mixture Screw
b - High Speed Jet
c - Bowl Drain (Remove Plug)
a
b
c
d
b
a - Carburetor Number Location
b - Off Idle Transfer Ports
c - Idle Speed Screw
d - Idle Pickup Tube
a
b
c
a - Idle Pickup Tube
b - Bowl Vent Tube
c - Main Jet Plug
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