Mercury Optimax 115 User Manual

DIRECT FUEL INJECTION
90-855347R1 JANUARY 1999 Page 3B-35
FUEL INJECTOR REMOVAL
1. Remove 2 screws securing injector.
NOTE: Use a cotter pin extractor tool in pry holes to remove injectors.
2. Gently pry up on injector to loosen O-ring adhesion and remove injector.
56125
a
a
b
57418
a-Screws
b-Pry Holes
3. Inspect fuel injector orifices for foreign debris; O-rings for cuts or abrasions and plastic
components for heat damage. Replace components as required.
4. An ohm test of the fuel injector may be made by connecting test leads to injector termi-
nals. Ohm reading should be 1.8 ± 0.1 ohm.
VOLTS
DC AMPS
OHMS
0
2
46
8
10
DCV ACV
DVA
0
0
5
10
20
10
30
15
40
20
0
5
10
15
20
30
40
60
100
200
X1
56002
56124
a
b
c
a
b
c
a-Fuel Injector
b-Fuel Nozzle
c-O-Rings

Mercury Optimax 115 Specifications

General

Fuel Induction System	2-stage Direct Fuel Injection (DFI)
Alternator Amp	60 amp / 756 watt
Steering	Remote
Cylinders	3
Starting	Electric
Displacement	1.5 L
Bore x Stroke	89 x 76 mm
Shaft Length	20" (508 mm)
Horsepower	115 HP