Mercury 30 Service Manual

2C-6 - ELECTRICAL 90-826148R2 MARCH 1997
ADJUSTING MAXIMUM SPARK ADVANCE
IMPORTANT: Setting the idle timing is required
before adjusting the maximum spark advance.
16. Turn engine off.
17. Positiontwistgriporremotecontrolleverto maxi-
mum throttle opening, (wide open throttle).
18. Loosen jam nut and turn screw counter-clock-
wise until screw no longer makes contact with
throttle bracket platform.
19. Turn screw in (clockwise) until screw just makes
contactwiththethrottlebracketplatformandthen
give screw one (1) additional turn clockwise and
tighten jam nut.
55882
c
b
a
a - Throttle Bracket Platform
b - Screw
c - Jam Nut
20. With engine idling at specified R.P.M. in “FOR-
WARD” gear, loosen cam follower screw and
placecamfollowerrolleragainstthrottlecamand
tighten cam follower screw. Cycle the throttle
mechanismthroughpartthrottleandbacktoidle.
Recheck in gear idle R.P.M..
NOTE: When setting idle mixture, DO NOT adjust
leaner than necessary to attain reasonably smooth
idling. When in doubt, stay to the slightly rich side of
highest R.P.M..
21. Adjust carburetor for best performance, after
clearing the engine. With engine running at idle
speed in “FORWARD” gear, turn mixture screw
“IN” (clockwise) until engine starts to loose
R.P.M., fire unevenly, and or misfires. Back out
1/4turn ormore. (See General Specifications for
minimum and maximum adjustment).
22. Check for too lean of mixture on acceleration.
(Engine will “hesitate” or “stall” on acceleration).
Readjust mixture if necessary.
23. Re-adjustidle speed screw in “FORWARD” gear
to specification.
Shift Link Rod Installation
and Adjustment to Engine
Install cables into the remote control following the
instructions provided with the remote control.
NOTE: Install the shift cable to the engine first. The
shift cable is the first cable to move when theremote
control handle is moved out of neutral.
1. Position remote control and outboard into neu-
tral.
N
2. Measure distance “a” between mounting pin and
middle of the barrel holder.
a
c
b
a - Distance Between Pin and Middle of Barrel Holder
b - Mounting Pin
c - Barrel Holder

Mercury 30 Specifications

General

Brand	Mercury
Model	30
Category	Outboard Motor
Language	English