Mercury 25 EFI Service Manual page 167

2. If the throttle arm does not contact the throttle arm stop, remove the ball socket from the throttle cam and thread the ball
socket into the throttle link several turns to shorten the length of the throttle link.
a
3. While holding the throttle arm at the WOT position, push on the throttle cam. The throttle cam should not move when
carefully pushed towards the WOT position.
4. If the throttle cam can be moved, remove the ball socket from the throttle cam and thread the ball socket out one turn.
5. Install the ball socket to the throttle cam and recheck the throttle cam for movement. Repeat the procedure until no
movement of the cam can be seen. Check to ensure the throttle arm is contacting the throttle arm stop.
a
90-8M0105568 eng MARCH 2016
c
b
c
Timing, Synchronizing and Adjustments
b
22609
a - Throttle arm at the WOT position
b - No movement on throttle cam when
pushed
c - Throttle arm contacting the throttle
arm stop
22610
© 2016 Mercury Marine
a - Throttle arm at the WOT
position
b - Ball socket
c - Throttle arm not contacting the
throttle arm stop
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