CARBURETOR
90-828631R3 MARCH 1999 Page 3B-13
Idle Mixture Screw Adjustment-Static Adjustment
NOTE: Idle mixture screw adjustment is required when carburetor has been overhauled.
NOTE: Screw Adjuster (91-809906A1) is required to adjust the idle mixture screws on 45
hp models.
NOTE: The idle mixture screw is:
Adjustable:
-All model years for the 45 hp version.
-1995-1997 model years for all other versions.
Non-adjustable:
-1998 model year and later.
1. Screw in the idle mixture screw on each carburetor until it is lightly seated, than back-out
specified number of turns.
1
2
3
4
a
b
a-Remove Plug
b-Idle Mixture Screw
Idle Mixture Screw-Turns Out
2.5
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