FL125SDW 8-24
FUEL INJECTOR
The system employs fuel injector (Discharge pump; DCP) that causes injection fuel to be pressurized within
the pump.
The fuel injector pressurizes gravity fed fuel with its plunger and injects the pressurized fuel into the intake
pipe. With the pressure plunger controlled by ECM, necessary volume of fuel is injected at the best timing
for the engine operating condition.
Operation
• When the plunger returns, fuel in the pump chamber enters through IN check valve.
• By the ECM signal, the coil is energized causing the plunger to pressurize fuel. This pressurization occurs
after vapor inside the pump chamber has been bled through the pressure valve.
• When the pressurization begins, OUT check valve opens and the fuel pressure rises until the injection
nozzle opens.
• The volume of fuel injection is controlled by the length of time in which the plunger compresses fuel.
• When the ignition switch is turned ON, the discharge pump starts to operate for 2 seconds for purging (ini-
tial operation).
Vapor
Coil
Pressure valve
IN check valve
OUT check valve
Fuel
Filter
Orifice
Injection
Plunger
Содержание FL125S
Страница 1: ...9 9 5 0 0 3 1 3 7 1 0 1 E...
Страница 34: ...2 23 PERIODIC MAINTENANCE...
Страница 132: ...4 12 FUEL AND LUBRICATION SYSTEM Remove the throttle position switch T from the top cap L...
Страница 145: ...CHASSIS 5 8 Disconnect the rear turn signal light coupler 1 and rear com bination light coupler 2...
Страница 206: ...6 6 ELECTRICAL SYSTEM 1 CDI unit 2 Starter relay For FL125SD 3 Starter motor For FL125SD...
Страница 262: ...7 25 SERVICING INFORMATION BRAKE PEDAL L o n g 11 mm S h o r t...
Страница 263: ...SERVICING INFORMATION 7 26 PILLION FOOTREST Cotter pin Bend the cotter pin and its ends should face upward...
Страница 297: ...FL125SDW 8 22 A ECM I Ignition coil IG coil H Speedometer J Crankshaft position sensor CKPS...
Страница 398: ...Prepared by March 2007 Part No 99500 31371 01E Printed in Japan 396...
Страница 399: ...Printed in Japan K7...