Suzuki Boulevard M50 User Manual

COOLING AND LUBRICATION SYSTEM 7-13
• Keep on heating the water to raise its temperature.
• Just when the water temperature reaches specified value, the
thermostat valve should have lifted by at least 6.0 mm (0.24
in).
 Thermostat valve lift A
Standard: 6.0 mm and over at 90 °C
(0.24 in and over at 194 °F)
• A thermostat failing to satisfy either of the two requirements
(start-to-open temperature and valve lift) must be replaced.
INSTALLATION
Install the thermostat in the revers order of removal. Pay atten-
tion to the following points:
• Apply engine coolant to the O-ring and install the water pump
cover.
• Tighten the water pump cover bolts.
NOTE:
Fit the clamp to the bolt A.
• Bleed air from the cooling circuit. (2-18)
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)