Suzuki Boulevard M50 User Manual

FUEL SYSTEM AND THROTTLE BODY 6-17
THROTTLE BODY CLEANING

• Clean all passageways with a spray-type carburetor cleaner
and blow dry with compressed air.

INSPECTION
• Check following items for any damage or clogging.
*O-ring
* Throttle valve
* Secondary throttle valve
* Vacuum hose
* Delivery hose
* Injector dust seal
THROTTLE BODY REASSEMBLY
Reassemble the throttle body in the reverse order of disassem-
bly. Pay attention to the following points:
• Apply thin coat of the engine oil to the new O-rings.

Some carburetor cleaning chemicals, especially
dip-type soaking solutions, are very corrosive and
must be handled carefully. Always follow the chemical
manufacturer’s instructions for proper use, handling
and storage.
Do not use wire to clean passageways. Wire can dam-
age passageways. If the components cannot be
cleaned with a spray cleaner it may be necessary to
use a dip-type cleaning solution and allow them to
soak. Always follow the chemical manufacturer’s
instructions for proper use and cleaning of the throttle
body components. Do not apply carburetor cleaning
chemicals to the rubber and plastic materials.
Replace the O-rings with the new ones.
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)