| Scheda Tecnica CB750K1 |
| Dimension |
Standard |
Metric |
|
Overall length
|
85.0 in.
|
2,160 mm
|
|
|
Overall width
|
34.8 in.
|
885 mm
|
|
|
Overall height
|
44.5 in.
|
1,155 mm
|
|
|
Wheel base
|
57.3 in.
|
1,455 mm
|
|
|
Seat height
|
31.5 in.
|
800 mm
|
|
|
Foot peg height
|
12.2 in.
|
310 mm
|
|
|
Ground Clearance
|
5.5 in.
|
140 mm
|
|
|
Dry weight
|
479 lb
|
218 kg
|
|
| Frame |
|
Type
|
Double cradle
|
|
|
|
F. Suspension, travel
|
5.6 in.
|
143 mm
|
telescopic fork
|
|
R. Suspension, travel
|
3.3 in.
|
85 mm
|
Swing arm
|
|
F. Tire pressure, size
|
28 psi
|
2.0 kg/cm2
|
3.25-19 (4 PR)
|
|
R. Tire pressure, size
|
28 psi
|
2.0 kg/cm2
|
4.00-18 (4 PR)
|
|
F. Brake, lining area
|
swept area 59.3 sq. in.
|
382.9 cm2
|
Disk brake
|
|
R. Brake, lining area
|
swept area 33.2 sq. in
|
220.5 cm2
|
Internal expanding shoe
|
|
Fuel Capacity
|
4.5 US gal, 3.7 Imp. gal
|
17 liter
|
|
|
Fuel Reserve Capacity
|
1.3 US gal, 1.1 Imp. gal
|
5 liter
|
|
|
Caster Angle
|
63 °
|
|
|
|
Trail Length
|
3.7 in.
|
95 mm
|
|
|
Front Fork oil capacity
|
7.5-7.8 oz
|
220-230 cc
|
to fill if dry
|
|
Front Fork oil capacity
|
6.9-7.1 oz
|
200-210 cc
|
to fill after draining
|
| Engine |
|
Type
|
Air-cooled, inline 4-cylinder, 4-stroke, sohc
|
|
Bore and Stroke
|
2.402 x 2.480 in.
|
61 x 63 mm
|
|
|
Displacement
|
44.93 cu in
|
736 cc
|
|
|
Compression Ratio
|
9.0 : 1
|
|
|
|
Valve train
|
Chain driven overhead camshaft
|
|
|
Oil Capacity
|
3.7 US qt, 3.1 Imp. gal
|
3.5 liter
|
|
Oil Tank Capacity
|
4.22 US pt., 3.55 Imp. pt
|
2 liter
|
|
Lubrication System
|
Forced pressure and dry sump
|
|
|
Cylinder head compression pressure
|
170.7 psi
|
12 kg/cm2
|
|
Intake valve: open
|
at 5 ° BTDC
|
|
|
|
Intake valve: close
|
at 30 ° after bottom dead center
|
|
|
Exhaust valve: open
|
at 35 ° before bottom dead center
|
|
|
Exhause valve: close
|
at 5 ° ATDC
|
|
|
Valve Tappet Clearance
|
In: 0.002 in., Ex: 0.003 in.
|
In:0.05 mm, Ex:0.08 mm
|
|
| Carburetor |
|
Type
|
Piston valve
|
|
|
|
Setting mark
|
7A
|
|
|
|
Main jet
|
#120
|
|
|
|
Slow jet I
|
#40
|
|
|
|
Air screw opening
|
1 ± 3/8 turns
|
|
|
|
Float height
|
0.866 in.
|
26 mm
|
|
| Drive Train |
|
Clutch
|
Wet, multi-plate
|
|
|
|
Transmission
|
5-speed, constant mesh
|
|
|
Gear Ratio I
|
2.500
|
|
|
|
Gear Ratio II
|
1.708
|
|
|
|
Gear Ratio III
|
1.333
|
|
|
|
Gear Ratio IV
|
1.097
|
|
|
|
Gear Ratio V
|
1.939
|
|
|
|
Primary reduction
|
1.708:1
|
|
|
|
Final Reduction
|
2.667:1 (18T x 48T)
|
|
|
| Electrical |
|
Type
|
12 volt, negative earth
|
|
|
Ignition
|
Coil and contact breaker, spare spark
|
|
|
Starting system
|
Electrical motor and kick pedal
|
|
|
Alternator
|
3-phase A.C. 12 V-0.21kW@5,000 rpm
|
|
|
Battery Capacity
|
12V - 14 amp hour
|
|
|
|
Spark plug
|
NGK D8ES-L, NDX 24ES
|
|
|
Spark plug gap
|
0.024 ~ 0.028 in.
|
0.6 ~ 0.7 mm
|
|
|
Point gap
|
0.012 ~ 0.016 in.
|
0.3 ~ 0.4 mm
|
|
|
Headlight
|
low/high 12V; 40W / 50W
|
|
|
Tail/stoplight
|
Tail/stop 12V; 7/23W (SAE Trade No. 1157)
|
|
Turn signal light
|
front/rear 12V; 23/23W
|
|
|
Speedometer light
|
12V - 3W
|
|
|
|
Tachometer light
|
12V - 3W
|
|
|
|
Neutral indicator light
|
12V - 3W
|
|
|
|
Turn signal indicator light
|
12V - 3W
|
|
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