Mercury 225 EFI Service Manual page 145

Section 2C - Timing, Synchronizing & Adjusting
Table of Contents
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . .
Special Tools . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Throttle Cam Adjustment
Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications
EFI MODELS Idle RPM
Wide Open Throttle (WOT) RPM
Float Adjustment (Vapor Separator)
IGNITION Type
SYSTEM Spark Plug Type
Spark Plug Gap
Firing Order
Throttle Position Sensor
@ Idle*
@ W.O.T.*
TIMING Idle Timing
Maximum Timing @ W.O.T.*
*NOTE: Although the Throttle Position Sensor voltage and the idle and maximum timing
settings are not adjustable, they can be monitored by using a Digital Diagnostic Terminal
(DDT).
90-884294 OCTOBER 2001
ELECTRICAL
2C-1
2C-2
2C-3
. . . . . . . . . . . . . . 2C-3
2C-4
– All Models
– All Models
Float Level
– All Models
– All Models
TIMING, SYNCHRONIZING & ADJUSTING
Maximum Throttle Adjustment
Throttle Position Sensor . . . . . . . . . . . . . . .
Idle Speed . . . . . . . . . . . . . . . . . . . . . . . . . . .
Throttle Cable Installation
Throttle Plate Screw . . . . . . . . . . . . . . . . . .
625
5000 – 5800
Preset @ Factory
Digital Inductive
Champion QL77CC
0.040 in. (1.0 mm)
1-2-3-4-5-6
0.19 – 1.0 vdc
3.45 – 4.63 vdc
– 6 BTDC
0
22 BTDC
. . . . . . . . . . 2C-4
2C-5
2C-5
. . . . . . . . . . . . . 2C-5
2C-6
50
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