Suzuki DF90A Service Manual

1A-2 Engine General Information and Diagnosis:
General Description
Engine Control System Description
Z9J0111101001
The DF70 / 80 / 90 models employ an integrated system which performs the control functions for fuel injection,
ignition, idle / trolling speed (idle air), etc. through the ECM (Engine Control Module).
System Structure
CKP sensor
CMP sensor
MAP sensor
IAT sensor
Cylinder temp. sensor
Throttle position sensor
Neutral switch
Shift position sensor
Oil pressure switch
Emergency stop switch
Ignition switch
PTT switch
Fuel injector
Ignition coil
IAC valve
High pressure fuel pump
Caution Buzzer
Monitor-tachometer
Starer motor relay,
(Starter motor)
Fuel injection system
Ignition system
Idle air control system
Fuel pump system
Caution system
Self diagnostic system
Fail saf
e system
Operating hour indication system
Oil changing reminder system
Start-in-gear protection system
Starter motor relay control system
Power trim and tilt relay
INPUT
(sensor/switch)
CONTROL
(ECM)
OUTPUT
(actuator etc.)
Exhaust manifold temp. sensor
PTT motor relay
Water pressure sensor (Optional)
Speedo sensor (Optional)
Trim/Tilt sensor
Trim gauge
Water pressure gauge
Speedometer
control system
I9J011110001-02
http://SelfFixer.com

Suzuki DF90A Specifications

General

Gear Ratio	2.59:1
Starting System	Electric
Cooling System	Water-cooled
Steering	Remote Control
Shaft Length	L: 508mm (20in), X: 635mm (25in)
No. of Cylinders	4
Oil Pan Capacity	4.5 L
Alternator	12V 40A
Engine Mounting	Shear Mount
Trim Method	Power Trim and Tilt
Exhaust	Through Prop Hub Exhaust
Engine Type	4-stroke
Maximum Output	90 hp
Fuel System	Sequential Multi Point Electronic Fuel Injection
Full Throttle Operating Range	5300 - 6300 rpm
Ignition System	Fully-transistorized
Displacement	1498 cm³