Mercury 45 Jet 50-55 - Carburetor Synchronization; (Models with One Piece Throttle Link Rod); (Models with Adjustable Length Throttle Link Rod); (Both One Piece and Adjustable Link Rod)

2C-2 - ELECTRICAL and IGNITION 90-817643R1 DECEMBER 1996
Carburetor Synchronization
(MODELS WITH ONE PIECE THROTTLE LINK ROD)
a. Remove four (4) attaching screws from sound box
cover and remove cover.
b. Loosen screw (a) of cam follower.
c. Loosen two (2) synchronizing screws (b) located
on throttle levers of top and bottom carburetors.
d. Look into throats of carburetors and verify all
throttle shutters are completely closed. Tighten
synchronizing screws.
51045
a
b
b
7.
(MODELS WITH 4 ADJUSTABLE LENGTH THROTTLE
LINK ROD)
a. Remove four (4) attaching screws from sound box
cover and remove cover.
b. Loosen screw (a) of cam follower.
c. Loosen four (4) synchronizing screws (b) located
on link rod.
d. Look into throats of carburetors and verify all
throttle shutters are completely closed. Tighten
four (4) synchronizing screws (b).
51045
b
b
a
(BOTH ONE PIECE AND ADJUSTABLE LINK ROD)
1. Recheck throttle shutters and make any necessary ad-
justments.
2. Hold throttle arm (c) so that idle stop screw (d) is
against stop.
3. Place roller (e) of cam follower against throttle cam (f)
and adjust idle stop screw (d) to align raised mark (g)
of throttle cam with center of cam follower roller. Tight-
en locknut (h).
51045
c
d
e
g
h
f