Chapter 7. Fuel Injection System; Fuel Injection System - Yamaha RS90GTZ Service Manual

FUEL INJECTION SYSTEM

ECU (engine control
unit)
Battery
Injector #2
Intake air pressure
sensor 1 (cylinders #1,
#2, and #3)
Injector #3
ISC (idle speed con-
trol) unit
FUEL INJECTION SYSTEM
FUEL INJECTION SYSTEM
Coolant temperature
sensor
Cylinder-#3 ignition
coil
Spark plug
Cylinder-#2 ignition
coil
Speed sensor
Cylinder-#1 ignition
coil
7-1
Intake air pressure
sensor 2 (cylinder #1)
Oil pressure switch
Throttle position sen-
sor
Crankshaft position
sensor
Injector #1
Intake air temperature
sensor
FI
Warning light
Fuel pump
Fuel injection system
relay
Load control relay
Headlight relay
Radiator fan motor
relay
Grip/thumb warmer
adjustment switch