
1. GENERAL INFORMATION
1-2
Downtown 300i ABS
SPECIFICATIONS
Name
Downtown 300i ABS
Model No.
SK60AB
Overall length
2200 mm
Overall width
800 mm
Overall height
1410 mm
Wheel base
1545 mm
Engine type
4 stroke O.H.C.
Displacement
298.9 cc
Fuel Used
92# nonleaded
gasoline
Front wheel
79
Rear wheel
110
Total
189
Front wheel
149
Rear wheel
205
Total
354
Ground clearance (mm)
140
Braking distance (m)
7.9m / 40 km/hr
Min. turning radius (m)
2.6
Engine part
Starting system
Starting motor
Type
Gasoline 4-cycle
Cylinder arrangement
Single cylinder
Combustion chamber type
Semi-sphere
Valve arrangement
O.H.C.-4V
Bore x stroke (mm)
φ
72.7 * 72
Compression ratio
10.8:1
Compression pressure
(kg/cm
²
-rpm)
16-570 rpm
Max. output (ps/rpm)
29 / 7750
Max. torque (kg-m/rpm)
2.7 / 6500
Open
-9.5° BTDC
Close
37.5° BTDC
Open
40° BTDC
Close
10° BTDC
Intake
0.10
Exhaust
0.10
Idle speed (rpm)
1620±100 rpm
Cooling Type
Liquid cooling
Lubrication type
Forced pressure &
wet sump
Oil pump type
Inner/outer rotor
Oil filter type
Full-flow filtration
Oil capacity
1.5 liter
Exchanging capacity
1.3 liter
Fuel injection system
Air cleaner type & No
Paper element, wet
Fuel capacity
12.5 liters
Brand
Keihin
Throttle Body
Butterfly type
Venturi diameter (mm)
34
Fuel pump pressure
43.4 psi (3.0 bar)
Electrical system
Ignition type
ECU
Ignition timing
10°BTDC / idle
33° / 6500min
Spark plug
CR7E (NGK)
Spark plug gap
0.6
~
0.7mm
Battery Capacity
12V10AH
Transmission system
Clutch type
Dry multi-disc
Transmission type
CVT
Operation type
Auto centrifugal
Reduction gear type
Two-stage reduction
1
st
0.72 ~ 2.24
2nd
7.222
Moving device
Tire type
Tubeless
Front
120/80-14 58S
Rear
150/70-13 64S
Front
2.0
Rear
2.25
Wheel material
Aluminium
Left
40
°
Right
40
°
Front
ABS
Rear
ABS
Clearance between
Wheel Sensor and
Rotor
Front
0.4-1.2mm
Rear
0.4-1.2mm
Damping Device
Front
Telescope
Rear
Swing arm
Shock absorber
stroke
Front
110 mm
Rear
100 mm
Curb weight
(kg)
Max. weight
(kg)
Valve clearance
Exhaust Timing
Intake Timing
Tire spec.
Tire pressure
(kg/cm
²
)
Turning angle
Brake type
Suspension
type
Reduction ratio
Summary of Contents for Downtown 300i ABS
Page 10: ...1 GENERAL INFORMATION 1 7 Downtown 300i ABS TORQUE VALUES...
Page 11: ...1 GENERAL INFORMATION 1 8 Downtown 300i ABS TORQUE VALUES FRAME...
Page 17: ...1 GENERAL INFORMATION 1 14 Downtown 300i ABS ISC Throttle Body TPS WTS Injector MAP Sensor...
Page 19: ...1 GENERAL INFORMATION 1 16 Downtown 300i ABS Starter Relay Regulator Rectifier CPS O2 Sensor...
Page 43: ...3 INSPECTION ADJUSTMENT 3 2 Downtown 300i ABS...
Page 69: ...6 CYLINDER HEAD VALVES 6 1 Downtown 300i ABS SCHEMATIC DRAWING...
Page 81: ...7 CYLINDER PISTON 7 1 Downtown 300i ABS SCHEMATIC DRAWING...
Page 89: ...8 DRIVE AND DRIVEN PULLEYS V BELT 8 1 Downtown 300i ABS SCHEMATIC DRAWING...
Page 103: ...9 FINAL REDUCTION 9 1 Downtown 300i ABS SCHEMATIC DRAWING...
Page 109: ...10 A C GENERATOR STARTER CLUTCH 10 1 Downtown 300i ABS SCHEMATIC DRAWING...
Page 119: ...11 CRANKCASE CRANKSHAFT 11 1 Downtown 300i ABS SCHEMATIC DRAWING...
Page 125: ...12 COOLING SYSTEM 12 1 Downtown 300i ABS SCHEMATIC DRAWING...
Page 206: ...15 REAR WHEEL REAR BRAKE REAR SUSPENSION Downtown 300i ABS 15 8...
Page 227: ...19 LIGHTS SWITCHES FUEL PUMP 19 1 Downtown 300i ABS ELECTRICAL EQUIPMENT LAYOUT Radiator...
Page 235: ......