Honda SH300 2009 User Manual

COOLING SYSTEM
7-9
THERMOSTAT
REMOVAL/INSTALLATION
Remove the following:
– maintenance lid (page 3-4)
– luggage box (page 3-5)
– floor side cover (page 3-8)
– under cover (page 3-9)
Drain the coolant from the system (page 7-7).
Remove the following:
– two bolts
– thermostat cover
– thermostat
Installation is in the reverse order of removal.
• The thermostat is installed with the bleed hole
facing up.
Fill and bleed the cooling system (page 7-6).
INSPECTION
Remove the thermostat (page 7-9).
Visually inspect the thermostat for damage.
Check for damage of the seal ring.
Replace the thermostat if the valve stays open at
room temperature.
Do not let the ther-
mostat or ther-
mometer touch the
pan, or you will get
a false reading.
Heat a container of water with an electric heating
element for 5 minutes.
Suspend the thermostat in heated water to check its
operation.
Replace the thermostat if the valve opens at a tem-
perature other than those specified.
Place a shop towel
under the
thermostat
housing.
COVER
BOLTS
THERMOSTAT
HOLE
SEAL RING
THERMOSTAT
THERMOSTAT BEGINS TO OPEN:
80 – 84 °C (176 – 183 °F)
VALVE LIFT:
4.5 mm (0.18 in) minimum at 95 °C (203 °F)
THERMOMETER
THERMOSTAT

Honda SH300 2009 Specifications

General

Displacement	279.1 cc
Bore x Stroke	72 mm x 68.5 mm
Compression Ratio	10.5:1
Fuel System	PGM-FI electronic fuel injection
Front Tire	110/70-16
Rear Tire	130/70-16
Width	730 mm
Height	1, 195 mm
Wheelbase	1, 420 mm
Engine Type	Liquid-cooled, 4-stroke, single-cylinder
Max Torque	26.5 Nm @ 6, 000 rpm
Transmission	V-Matic
Front Suspension	Telescopic fork, 35 mm
Rear Suspension	Twin shock absorbers
Front Brake	256mm hydraulic disc
Rear Brake	240 mm disc