Honda SH300 2009 User Manual

LIGHTS/METERS/SWITCHES
22-25
Turn the ignition switch OFF.
Short the relay connector terminals of the wire har-
ness side with a jumper wire.
Remove the maintenance lid (page 3-4).
Disconnect the fuse 10 A.
Turn the ignition switch "ON".
Measure the voltage between the fuse box terminal
connector of the wire harness side and ground.
If the battery voltage appears, the main relay switch
line is normal.
Inspect the main relay function test (page 22-25).
If the battery voltage does not appear, inspect the
following:
– Open circuit in Red wire between the main fuse
and main relay switch line side
– Open circuit in Red/Yellow wire between the
main relay and fuse box
FUNCTION TEST
Remove the main relay (page 22-26).
Connect an ohmmeter to the switching side relay
terminals.
Connect a 12 V battery to the coil side relay termi-
nals.
There should be continuity while the battery is con-
nected to the relay terminals and there should be no
continuity when the battery is disconnected.
Connection: Red/Yellow – Red
Connection: Red/Yellow (+) – Ground (–)
RELAY CONNECTOR
JUMPER WIRE
FUSE 10 A
FUSE BOX
TERMINAL
R
R/Y
R/Y
CONNECTION: A – B
CONNECTION: C (+) – D (–)
A B
C
D
A
B
C
D
RELAY

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