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Mercury 15XD - Engine Timing and Adjustments

Mercury 15XD
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2
C
TIMING/SYNCHRONIZING/ADJUSTING
90-826883R2 JUNE 1998 Page 2C-1
ELECTRICAL
Section 2C - Timing/Synchronizing/Adjusting
Table of Contents
Specifications 2C-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Special Tools 2C-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Timing/Synchronizing/
Adjusting-Tiller Handle & Side Shift Models 2C-3. . . . . .
Side Shift Models: Adjusting Tiller Handle
Cables 2C-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tiller Shift Models: Adjusting Link Rod 2C-5. . . . . . .
Starting Procedure 2C-6. . . . . . . . . . . . . . . . . . . . . . . .
Timing Checking and Adjustment 2C-6. . . . . . . . . . . .
Adjusting Idle Speed 2C-8. . . . . . . . . . . . . . . . . . . . . . .
20 Jet/20/25 Models (Non Marathon/SeaPro) 2C-10
Timing/Synchronizing/Adjusting - Remote Control
Models 2C-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shift and Throttle Cable Installation to the
Outboard 2C-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shift Cable Installation 2C-14. . . . . . . . . . . . . . . . . . .
Throttle Cable Installation 2C-15. . . . . . . . . . . . . . . .
Starting Procedure 2C-16. . . . . . . . . . . . . . . . . . . . . . . . .
Adjusting Idle Speed 2C-17. . . . . . . . . . . . . . . . . . . . .
Specifications
TIMING
SPECIFI-
CATIONS
20 Jet 1994
1
/
2
THRU 1998
20/25 1994
1
/
2
THRU 1996
Electronic Spark Advance
Idle @ 750 ± 50 RPM (In Forward
Gear)
Fast Idle Speed
Maximum BTDC (Running)
Setup Timing
20 Jet 1999 AND NEWER
20/25 1997 AND NEWER
Mechanical Spark Advance
Idle @ 750 ± 50 RPM (In Forward
Gear)
Fast Idle Speed
Maximum BTDC (Running)
4°±2° B.T.D.C (Not Adjustable)
1400 RPM ± 250 RPM
25°±1 @5500 RPM
28° B.T.D.C. @ 3000 ± 200 R.P.M.
(Set-up timing of 28° B.T.D.C. will
be retarded to 25° B.T.D.C. @
5500 R.P.M.)
6°±1° B.T.D.C
1500 RPM ± 200 RPM
25°±1 @5500 RPM

Table of Contents

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