Mercury Optimax 115 Service Manual page 110

Section 2C - Timing, Synchronizing & Adjusting
Table of Contents
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Special Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Crank Position Sensor . . . . . . . . . . . . . . . . . . . . . . . .
Throttle Cam Adjustment . . . . . . . . . . . . . . . . . . . . . .
Maximum Throttle . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications
FULL THROTTLE RPM RANGE
IDLE RPM (IN FORWARD GEAR)
MAXIMUM TIMING: @ WIDE OPEN
IDLE TIMING
SPARK PLUG TYPE
SPARK PLUG GAP
FIRING ORDER
THROTTLE POSITION SENSOR 1
(INNER TPS)
THROTTLE POSITION SENSOR 2
(OUTER TPS)
*Standard with engine
90-855347R1 JANUARY 1999
ELECTRICAL
2C-1
2C-2
2C-4
2C-5
2C-5
LIGHT DUTY
HEAVY DUTY
@ IDLE
@ W.O.T.
@ IDLE
@ W.O.T.
TIMING, SYNCHRONIZING & ADJUSTING
Throttle Plate Screw . . . . . . . . . . . . . . . . . . . . . . .
Throttle Position Sensor (TPS) Adjustment
Idle Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5000 - 5600
Not Adjustable Controlled by ECM
Not Adjustable Controlled by ECM
NGK: ZFR5F-11
Champion RC12MC4
NGK: PZFR5F-11 (Heavy Duty)*
0.040 in. (1.0 mm)
3.70 - 4.90 VDC
0.30 - 1.80 VDC
0.10 - 1.50 VDC
3.20 - 4.90 VDC
2C-6
. . . . . . 2C-6
2C-6
550 25
1-2-3-4-5-6
Page 2C-1
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