Color Diagrams

90-897725 MARCH 2005 Page 8A-3

75/90 FOURSTROKE EFI WIRINGDIAGRAM

Color Diagrams

Page 8A-4 90-897725 MARCH 2005

75/90 FourStroke EFI Wiring Diagram1 - Electronic control module (ECM)2 - Engine water temperature sensor3 - Ignition coil for cylinder #1 and cylinder #44 - Ignition coil for cylinder #2 and cylinder #35 - Fuel injector #16 - Fuel injector #27 - Fuel injector #38 - Fuel injector #49 - Data test port10 - Main relay and fuel pump relay11 - Electric fuel pump12 - Splice saver13 - Throttle position sensor14 - Manifold air pressure/temperature sensor

(MAP‑T)15 - Idle air control (IAC)16 - Oil pressure sensor17 - Shift switch18 - 30 ampere fuse ‑ electric starter circuit19 - 20 ampere fuse ‑ power trim circuit

20 - 20 ampere fuse ‑ battery charging circuit21 - 20 ampere fuse ‑ main relay and fuel pump relay22 - Voltage regulator/rectifier23 - Stator ‑ 25 ampere24 - Trim indicator25 - Instruments26 - Crank position sensors27 - Malfunction indicator lamp (MIL) connection28 - Negative battery cable29 - Voltage regulator30 - Starter motor31 - Starter solenoid32 - Power trim relay33 - Cowl mounted trim switch34 - Remote control harness connector35 - Adaptor harness (model 2005)36 - Adaptor harness (model 2006)37 - Engine harness connector38 - Diode

123456789101112131415161718

BLK

BL

K

12345678910111213141516171819202122232425262728293031323334

PNK/GRN PNK/GRN

PN

K/G

RN

2 3 42

3 45 6 7

11

12

13 1415

16 12

17

18

8

9

10

WHT

WH

T

WH

T

WH

T

WH

T

WH

T

WHTWHT

WH

T

BLK/WHT

BL

K/W

HT

BLK/YEL

BL

K/Y

EL

RED/BLK

GRN/RED

GR

N/R

ED

GRN/RED

GRN/YEL

GR

N/Y

EL

GRN/YEL

RED

RE

D

RE

D

RE

D

RED

RED

RED

RED

RE

D

RE

D

RE

D

RE

D

RE

DR

ED

RE

D

RE

D

RE

D

RE

D

RE

D

PNK

PN

K

ORG/WHT

OR

G/W

HT

RED/YEL

RE

D/Y

EL

RE

D/Y

EL

RE

D/Y

EL RE

D/Y

EL

RE

D/Y

EL

RE

D/Y

EL

RE

D/Y

EL

RE

D/Y

EL

RE

D/Y

EL

RE

D/Y

EL

RE

D/Y

EL

DK BLU

DK

BL

U

DK

BL

UD

K B

LU

DK

BL

U

BR

N

BRN

BR

N/W

HT

LT G

RN

/WH

T

LT B

LU

/WH

T

PNK

PNK PNK

PN

K

WH

T/B

LK

YEL

YEL

YEL

YEL

YE

L

WHT/BLU

WH

T/B

LU

GRN/BLK

GR

N/B

LK

GRN/BLK

LT GRN

LT G

RN

LT G

RN

LT G

RN

LT G

RN

LT GRN

LT GRN

LT GRN

LT GRN

LT GRN

LT GRN

BLK/YEL

BL

K/Y

EL

RED

LT BLU

LT B

LU

LT B

LU

LT B

LU

LT B

LU

LT BLU

LT BLU

LT BLU

LT BLU

LT BLU

LT BLU

LT GRNWHT/BLK

WHT/BLK

WH

T/B

LK

BLU

LT BLU

WHT/RED

WH

T/R

ED

BLURED/BLK

RE

D/B

LK

RE

D/B

LK

PUR/RED

PU

R/R

ED

PU

R/R

ED

PU

R/R

ED

PUR/BLK

PU

R/B

LK

PU

R/B

LK

PU

R/B

LK

GRN

GR

N

GRN

GR

N

GR

N

GR

NG

RN

GR

N

GRNGRN

GRN

PNK/WHT PNK/WHT

PN

K/W

HT

ORG ORG

OR

G

OR

G

OR

GO

RG

OR

G

BLK/RED

BL

K/R

ED

BLU/WHT

BL

U/W

HT

GRN

BLK

BLU/YEL BLU/YEL

BL

U/Y

EL

1

BL

K

BL

K

BL

K

BL

K

BL

K

BL

K

BL

K

BL

K

BL

K

BL

K BL

K BL

K

BL

K

BL

K

BL

K

BLK

BLK

BL

K

BL

K

BL

KB

LK

BL

K

DK

BL

U

RE

D/Y

EL

RE

D/Y

EL

RE

D/Y

EL

RE

D/Y

EL

DK

BL

U

RE

D

RE

D

LT GRN

LT GRN

LT G

RN

LT BLU

LT BLU

LT BLU

RE

D

LT G

RN

/WH

T

LT B

LU

/WH

T

BL

K

BLK

BLK

BLK

BLK

BLK

BL

K

BL

K

BL

K

BL

K

23

WH

T/B

LK

PNK/BLK

WHT/BLK

BL

K

A B

CD

E

F

G

H

J K

L

N

P

M

1

918

10

118

1734

WHT/BLKBLK

PNK/BLK

PNK/WHT

19 20 21

2223

24 25 26

27

29

30

33

31

32

38

3435

36

37

28

PN

K

PN

K/W

HT

PN

K/B

LK

PN

K/B

LK

BLK

75/90 FourStroke EFI Wiring Diagram

1

13228

PNK/WHT

WHT/RED

Color Diagrams

90-897725 MARCH 2005 Page 8A-5

75/90 FOURSTROKE EFI TYPICALGAUGES WITH TACH SIGNAL

CONVERTER

Color Diagrams

Page 8A-6 90-897725 MARCH 2005

75/90 FourStroke EFI Typical Gauges with Tach Signal Converter1 - Panel Control 40002 - Neutral lock button3 - Trim switch4 - Throttle only button5 - Lanyard stop switch6 - Lanyard stop switch leads must be soldered and covered with shrink tube for a water proof connection.

If alternate method of connection is made (use of electrical butt connector) verify connection is secureand seal for moisture proof connection.

7 - Trim harness connection8 - Connect wires together with screw and hex nut (2 places). Apply Liquid Neoprene to connections and

slide heat shrink tubing over each connection.9 - Ignition key switch10 - 5‑pin tachometer harness connector11 - Warning horn12 - Speedometer13 - Temperature gauge14 - Trim Position gauge15 - Tachometer16 - Light switch connection17 - Tachometer signal converter (required for correct tachometer operation for 2001 model year)18 - To warning light ( if equipped)19 - To trim sender (if equipped)20 - To engine trim harness connections21 - To temperature sensor (if equipped)22 - Remote control harness connection

C

D E A

B

1110

S I

G

IGN.

CAL.

SEND.

GRD.

LT.

5P6P

2P

3P

8C4P

4C

6C

S I

G

1

78

9

5

6

4

3

2

12

13

14

1516

17

18

19

20

2122

75/90 FourStroke EFI Typical Gauges With Tach Signal Converter

13232

Color Diagrams

90-897725 MARCH 2005 Page 8A-7

75/90 FOURSTROKE EFI FUEL FLOWDIAGRAM

Color Diagrams

Page 8A-8 90-897725 MARCH 2005

75/90 FourStroke EFI Fuel Flow Diagram1 - Boat fuel tank2 - Water separating fuel filter assembly3 - Mechanical fuel pump4 - Fuel filter (in‑line)5 - Float valve assembly6 - High pressure fuel pump filter7 - Vapor Separator Tank (VST) drain fitting8 - Vapor Separator Tank (VST) drain screw9 - High pressure fuel pump10 - Vapor Separator Tank (VST) fuel vapor fitting11 - High pressure fuel out to fuel rail12 - Fuel pressure regulator13 - Fuel cooler14 - Fuel return to VST from fuel cooler fitting15 - Fuel rail16 - Fuel injector17 - Fuel pressure regulator internal view18 - Fuel pressure regulator vent to intake manifold19 - High pressure fuel inlet to fuel pressure regulator20 - High pressure fuel to fuel cooler21 - Vent to atmosphere22 - Vapor canister filter23 - Vapor canister24 - To intake manifold

Fuel Color Code

Yellow Fuel vapor

Orange Fuel is under low pressure

Red Fuel is under high pressure

75/90 FourStroke EFI Fuel Flow

1

2

4

6

7

8

9

10 1011

12

13

14

15

16

3

21 22 23

24

5

16

16

16

17

18

19

20

13229

Color Diagrams

90-897725 MARCH 2005 Page 8A-9

75/90 FOURSTROKE EFI OIL FLOWDIAGRAM

Color Diagrams

Page 8A-10 90-897725 MARCH 2005

75/90 FourStroke EFI Oil Flow Diagram1 - Sump2 - Oil pick‑up3 - Adapter plate4 - Oil pump and pressure regulator5 - Cylinder block with oil passages6 - Oil filter7 - Crankshaft with oil passages8 - Cylinder head with oil passages9 - Camshafts10 - Oil drains from head to block11 - Oil in block drains through adapter plate back to the sump.

1

2

3

4

5

5

6

7

8

9

10

11

75/90 FourStroke EFI Oil Flow

13231

Color Diagrams

90-897725 MARCH 2005 Page 8A-11

75/90 FOURSTROKE EFI WATERFLOW DIAGRAM

Color Diagrams

Page 8A-12 90-897725 MARCH 2005

75/90 FourStroke EFI Water Flow Diagram1 - Water inlet2 - Water pump3 - Driveshaft housing4 - Water tube5 - Oil sump6 - Adapter plate7 - Cylinder block8 - Cylinder head9 - Thermostat 60° C (140° F)10 - Water jacket cover11 - Water pressure relief valve12 - Fuel cooler13 - Tee fitting14 - Tell‑tale15 - Driveshaft bushing

1

2

34

5

6

7

8

9

10

11

12

13

14

15

75/90 FourStroke EFI Water Flow

13230