Suzuki Boulevard M50 User Manual

PERIODIC MAINTENANCE 2-15
MAJOR ADJUSTMENT
• Remove the rear and front seats. (8-3)
• Remove the fuel tank. (6-3)
• Loosen the lock nut 1 of the throttle returning cable.
• Turn the returning cable adjuster 2 to obtain proper cable
play.
• Loosen the lock nut 3 of the throttle pulling cable.
• Turn the pulling cable adjuster 4 in or out until the throttle
cable play A should be 2.0 – 4.0 mm (0.08 – 0.16 in) at the
throttle grip.
• Tighten the lock nut 3 securely while holding the adjuster 4.
Throttle cable play A: 2.0 – 4.0 mm (0.08 – 0.16 in)
• While holding the throttle grip at the fully closed position,
slowly turn the returning cable adjuster 2 to obtain a slack of
1.0 mm (0.04 in).
• Tighten the lock nut 1 securely.

THROTTLE VALVE SYNCHRONIZATION
Inspect the throttle valve synchronization periodically.
(6-24)
EVAPORATIVE EMISSON CONTROL SYS-
TEM (FOR E-33 ONLY)
(11-9)
PAIR (AIR SUPPLY) SYSTEM
Inspect the PAIR (air supply) system periodically.
(11-5)
After the adjustment is completed, check that handle-
bar movement does not raise the engine idle speed
and that the throttle grip returns smoothly and auto-
matically.
Inspect initially at 1 000 km (600 miles, 2 months) (For
E-33 only) and every 12 000 km (7 500 miles, 24
months).
Inspect every 12 000 km (7 500 miles, 24 months).
Replace vapor hose every 4 years.
Inspect every 12 000 km (7 500 miles, 24 months).
1 mm
(0.04 in)
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)