Suzuki Boulevard M50 User Manual

FUEL SYSTEM AND THROTTLE BODY 6-1
6
FUEL SYSTEM AND THROTLE BODY
CONTENTS
FUEL DELIVERY SYSTEM ...........................................................................6- 2
FUEL SYSTEM ..............................................................................................6- 3
FUEL TANK REMOVAL..........................................................................6- 3
FUEL TANK INSTALLATION .................................................................6- 3
FUEL PRESSURE INSPECTION............................................................6- 4
FUEL PUMP INSPECTION .....................................................................6- 5
FUEL DISCHARGE AMOUNT INSPECTION .........................................6- 5
FUEL PUMP RELAY INSPECTION ........................................................6- 6
FUEL PUMP REMOVAL AND DISASSEMBLY .....................................6- 7
FUEL MESH FILTER INSPECTION AND CLEANING ...........................6-11
FUEL PUMP REASSEMBLY AND INSTALLATION ..............................6-11
THROTTLE BODY.........................................................................................6-12
CONSTRUCTION ....................................................................................6-12
AIR CLEANER BOX REMOVAL.............................................................6-13
AIR CLEANER BOX INSTALLATION ....................................................6-13
THROTTLE BODY REMOVAL ...............................................................6-13
THROTTLE BODY DISASSEMBLY .......................................................6-14
THROTTLE BODY CLEANING...............................................................6-17
INSPECTION ...........................................................................................6-17
THROTTLE BODY REASSEMBLY ........................................................6-17
THROTTLE BODY INSTALLATION .......................................................6-20
STP SENSOR ADJUSTMENT ................................................................6-21
FUEL INJECTOR REMOVAL .................................................................6-21
FUEL INJECTOR INSPECTION .............................................................6-21
FUEL INJECTOR INSTALLATION .........................................................6-22
FAST IDLE ..............................................................................................6-22
FAST IDLE ADJUSTMENT.....................................................................6-22
THROTTLE VALVE SYNCHRONIZATION.............................................6-24
THROTTLE POSITION SENSOR (TPS) SETTING ................................6-25

Gasoline must be handled carefully in an area well ventilated and away from fire or
sparks.
SAMPLE

Suzuki Boulevard M50 Specifications

General

Compression Ratio	9.4:1
Fuel System	Fuel injection
Ignition	Electronic ignition (transistorized)
Transmission	5-speed constant mesh
Final Drive	Shaft drive
Front Suspension	Inverted telescopic, coil spring, oil damped
Front Tire	130/90-16M/C 67H, tubeless
Rear Tire	170/80-15M/C 77H, tubeless
Ground Clearance	140 mm (5.5 in)
Seat Height	700 mm (27.6 in)
Engine Type	4-stroke, liquid-cooled, V-twin
Bore x Stroke	83.0 mm x 74.4 mm
Rear Suspension	coil spring, oil damped
Front Brakes	Single hydraulic disc
Rear Brakes	Drum
Fuel Tank Capacity	15.5 L (4.1 US gal)
Wheelbase	1, 655 mm (65.2 in)