APRILIA 8140172, Service And Repair Manual

Page: 201 / 279

FUEL SUPPLY SYSTEM
4
4 - 2
RSV mille
FUEL SUPPLY SYSTEM
4!",% /& #/.4%.43
&5%, 4!.+
..................................................... 4-3
4.1.1 MAINTENANCE ............................................. 4-4
4.1.2 CHECKING THE FUEL SUPPLY .................. 4-4
$2!).).' 4(% &5%, 4!.+
...................... 4-5
2%-/6).' 4(% 7(/,% &5%, 3500,9
05-0 5.)4
..................................................... 4-5
2%-/6).' 4(% &5%, ,%6%, 3%.3/2
. 4-5
2%-/6).' 4(% &5%, 3500,9 05-0
... 4-6
2%-/6).' 4(% $%,)6%29 &),4%2
........ 4-6
%.').% -!.!'%-%.4
.............................. 4-7
4.7.1 FOREWORD .................................................. 4-7
4.7.2 SENSORS ..................................................... 4-7
4.7.3 INJECTION SYSTEM DIAGRAM .................. 4-9
4.7.4 ENGINE CONTROL UNIT CONNECTORS . 4-10
4.7.5 AUTOMATIC TESTING ............................... 4-11
4.7.6 ELIMINATING
ELECTRONIC SYSTEM FAULTS
ACCORDING TO THE INFORMATION
SENT UP ON THE DISPLAY ......................4
-
11
4.7.7 CAMSHAFT POSITION SENSOR ...............4
-
11
4.7.8 DRIVING SHAFT POSITION SENSOR ....... 4-11
4.7.9 INTAKE PRESSURE SENSOR ................... 4-11
4.7.10 INTAKE PRESSURE SENSOR ................. 4-11
4.7.11 THROTTLE VALVE POTENTIOMETER ... 4-11
4.7.12 COOLANT THERMISTORS ...................... 4-11
4.7.13 AIR THERMISTORS .................................. 4-11
4.7.14 IGNITION COILS ....................................... 4-11
4(2/44,% "/$9
........................................ 4-12
4.8.1 REMOVING THE INJECTORS .................... 4-12
4.8.2 REMOVING THE THROTTLE BODY .......... 4-12
4.8.3 DISASSEMBLING
THE THROTTLE BODY .............................. 4-14
4.8.4 INSPECTING THE THROTTLE BODY ....... 4-16
4.8.5 REFITTING THE THROTTLE BODY .......... 4-17
4.8.6 REPLACING THE THROTTLE VALVE
CONTROL LEVER ...................................... 4-19
4.8.7 CHECKING THROTTLE VALVE CONTROL
SHAFT END PLAY ...................................... 4-21
4.8.8 ADJUSTING THE THROTTLE BODY ......... 4-22
4.8.9 ADJUSTING THE THROTTLE VALVE
POSITION SENSOR .................................... 4-23
4.8.10 SYNCHRONIZING CYLINDERS ............... 4-24