Mercury 225 EFI Service Manual page 147

Adjustments
IMPORTANT: All throttle linkage adjustments have been set at factory and appro-
priately secured to prevent unnecessary readjustment. These factory settings en-
able this engine to meet federally mandated emission standards and should not be
tampered with. However, should certain components fail, it may be necessary to
reset throttle linkage to approximate factory settings.
Throttle Cam Adjustment
1. Loosen cam follower screw, using Snap-On Tool TTXR25E, allowing cam follower to
move freely.
2. Allow roller to rest on throttle cam. Adjust idle stop screw on throttle arm to align
curved radius on throttle cam with center of roller. Tighten jam nut.
3. While holding throttle arm against idle stop, move cam follower arm until a 0.005 in.
to 0.020 in. (0.13 mm to 0.51 mm) clearance exists between roller and throttle cam.
Tighten cam follower screw.
a -
b -
c -
d -
e -
90-884294 OCTOBER 2001
a
b
c
Cam Follower Screw
Roller
Throttle Cam
Idle Stop Screw
Throttle Arm
f - Jam Nut
TIMING, SYNCHRONIZING & ADJUSTING
e
f
d
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