Suzuki Intruder VZ800 User Manual

7-12 COOLING AND LUBRICATION SYSTEM
THERMOSTAT
REMOVAL
• Drain engine coolant. (2-17)
• Remove the reservoir tank. (3-4)
• Remove the water hoses 1 and water pump case 2.
• Remove the thermostat case 3.
• Remove the thermostat 4.
INSPECTION
Inspect the thermostat pellet for signs of cracking.
Test the thermostat at the bench for control action, in the follow-
ing manner.
• Pass a string 1 between flange of thermostat 2, as shown.
• Immerse the thermostat in the water contained in a beaker, as
shown in the illustration. Note that the immersed thermostat is
in suspension. Heat the water 3 by placing the beaker on a
stove 4 and observe the rising temperature on a thermome-
ter 5.
• Read the thermometer just when opening the thermostat. This
reading, which is the temperature level at which the thermo-
stat valve begins to open, should satisfy the standard value.
 Thermostat valve opening temperature
Standard: Approx. 75 °C (167 °F)
SAMPLE

Suzuki Intruder VZ800 Specifications

General

Engine Type	4-stroke, liquid-cooled, DOHC, 45-degree V-twin
Displacement	805 cc
Bore x Stroke	83.0 mm x 74.4 mm
Compression Ratio	9.4:1
Fuel System	Fuel injection
Ignition	Electronic ignition (transistorized)
Transmission	5-speed constant mesh
Final Drive	Shaft drive
Front Suspension	Telescopic, coil spring, oil damped
Rear Suspension	Link type, coil spring, oil damped
Rear Brake	Drum brake
Seat Height	700 mm (27.6 in)
Front Brake	Disc brake
Rear Tire	170/80-15M/C 77H, tube type
Fuel Tank Capacity	15.5 L (4.1 US gallons)