Mercury Optimax 135 Service Manual

WIRING DIAGRAMS
90-855347R1 JANUARY 1999 Page 2D-15
Wiring Diagram – Gauge needle to point toward slow running engine
GRY=GRAY
WHT=WHITE
BLK=BLACK
PUR=PURPLE
51107
b
c
d
a
b
c
d
a-Tachometer Starboard Engine
b-Synchronizer Gauge
c-Tachometer Port Engine
d-Synchronizer Module
Wiring Diagram – Gauge needle to point toward fast running engine
GRY=GRAY
WHT=WHITE
BLK=BLACK
PUR=PURPLE
b
c
d
51107
a
b
c
d
a-Tachometer Starboard Engine
b-Synchronizer Gauge
c-Tachometer Port Engine
d-Synchronizer Module
Maintenance
Clean gauge by washing with fresh water to remove sand and salt deposits. Wipe off with
a soft cloth moistened with water. The gauge may be scored or damaged if wiped with
abrasive material (sand, saline or detergent compounds, etc.) or washed with solvents
such as trichloroethylene, turpentine, etc.

Mercury Optimax 135 Specifications

General

Engine Type	V6
Horsepower	135 HP
Fuel Induction System	2-stage direct fuel injection
Full Throttle RPM Range	5000-5750 RPM
Alternator Output	60 amp / 756 watt
Starting System	Electric
Steering	Remote
Dry Weight	431 lbs
Shaft Length	20", 25"