Honda SH300 2009 User Manual

CYLINDER HEAD/VALVES
9-20
Route the cam chain through the cylinder head and
install the cylinder head.
Apply molybdenum oil solution to the thread and
seating surface of the cylinder head 9 mm bolts and
washers.
Install the 9 mm bolts, washers and tighten the bolts
in a crisscross pattern in 2 or 3 steps to the specified
torque.
Install the two cylinder head 6 mm bolts and tighten
them.
Connect the water hose.
Install the two bolts and clamp stay.
Install the main wire harness wire band, CKP sensor
wire band, ignition coil wire band and spark plug
wire band to the stay.
Install the following:
– spark plug (page 4-7)
– camshaft/rocker arm (if removed) (page 9-21)
– cam sprocket (page 9-22)
– cylinder head cover (page 9-24)
– O
2 sensor (page 6-76)
– ECT sensor (page 6-75)
– thermostat (page 7-9)
– intake manifold (page 6-64)
– exhaust pipe/muffler (page 3-15)
Fill the engine oil (page 4-11).
Fill and bleed the cooling system (page 7-7).
TORQUE: 38 N·m (3.9 kgf·m, 28 lbf·ft)
BOLTS
CYLINDER HEAD
BOLTS/WASHERS
HOSE
Route the wires
properly (page 1-
19).
STAY
BANDS BOLTS

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