| Scheda Tecnica CB750K2, K3, K4 |
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Dimensions
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Standard
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Metric
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Overall length
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85.6 in.
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2,175 mm
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Overall width
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34.3 in.
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870 mm
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Overall height
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46.1 in.
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1,170 mm
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Wheel base
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57.3 in.
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1,455 mm
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Seat height
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31.9 in.
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810 mm
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Foot peg height
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12.2 in.
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310 mm
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Ground Clearance
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5.5 in.
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140 mm
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Dry weight
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479 lb
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218 kg
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Frame
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Type
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Double cradle
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F. Suspension, travel
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5.6 in.
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143 mm
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telescopic fork
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R. Suspension, travel
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3.3 in.
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85 mm
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Swing arm
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F. Tire pressure, size
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28 psi
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2.0 kg/cm2
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3.25-19 (4 PR) Rib tire
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R. Tire pressure, size
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28 psi
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2.0 kg/cm2
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4.00-18 (4 PR) Block tire
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F. Brake, lining area
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swept area 59.3 sq. in.
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382.9 cm2
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Disk brake
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R. Brake, lining area
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swept area 34.2 sq. in
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220.5 cm2
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Internal expanding shoe
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Fuel Capacity
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4.5 US gal, 3.7 Imp. gal
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17 liter |
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Fuel Reserve Capacity
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1.3 US gal, 1.1 Imp. gal
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5 liter |
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Caster Angle
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63 °
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Trail Length
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3.7 in.
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95 mm
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Front Fork oil capacity
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7.5-7.8 oz
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220-230 cc
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to fill if dry
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Front Fork oil capacity
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5.3-5.4 oz
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155-160 cc
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to fill after draining
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Engine
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Type
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Air-cooled, 4-stroke, OHC
engine
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Cylinder Arrangement
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4-cylinder in line
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Bore and Stroke
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2.402 x 2.480 in.
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61 x 63 mm
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Displacement
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44.9 cu in
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736 cc
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Compression Ratio
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9.0 : 1
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Valve train
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Chain driven overhead
camshaft
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Oil Capacity
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3.7 US qt, 3.1 Imp. gal
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3.5 liter
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Lubrication System
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Forced pressure and dry sump
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Cylinder head compression pressure
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170.7 psi
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12 kg/cm2 |
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Intake valve: open
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at 5 ° BTDC
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Intake valve: close
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at 30 ° after bottom dead
center
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Exhaust valve: open
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at 35 ° before bottom dead
center
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Exhause valve: close
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at 5 ° ATDC
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Valve Tappet Clearance
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In: 0.002 in., Ex: 0.003 in.
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In:0.05 mm, Ex:0.08 mm
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Idle speed
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950 rpm
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Carburetor
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Type
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Piston valve
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Setting mark
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7A
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Main jet
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#120; K3, #105
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Slow jet I
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#40
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Air screw opening
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1 ± 3/8 turns
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Float height
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0.866 in.
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26 mm
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Drive Train
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Clutch
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Wet, multi-plate
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Transmission
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5-speed, constant mesh
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Primary Reduction
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Primary: 1.708
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Gear Ratio I
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2.500
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Gear Ratio II
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1.708
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Gear Ratio III
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1.333
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Gear Ratio IV
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1.097
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Gear Ratio V
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1.939
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Final Reduction
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2.667, drive sprocket 18 T,
driven sprocket 48 T
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Gear shift pattern
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left foot return type
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Electrical
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Ignition
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Battery and ignition coil
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Starting system
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Electrical motor and kick
pedal
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Alternator
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Three phase A.C. 12
V-0.21kW@5,000 rpm
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Battery Capacity
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12V - 14 amp hour
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Spark plug
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NGK D8ES-L, NDX 24ES
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Spark plug gap
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0.024 ~ 0.028 in.
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0.6 ~ 0.7 mm
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Point gap
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0.012 ~ 0.016 in.
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0.3 ~ 0.4 mm
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Headlight
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low/high 12V; 40W / 50W
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Tail/stoplight
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Tail/stop 12V; 3/32 CP (SAE
Trade No. 1157)
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Turn signal light
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front/rear 12V; 32/32 CP
(SAE Trade No. R1034, L1073)
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Speedometer light
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12V; 2 CP (SAE Trade No. 57)
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Tachometer light
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12V; 2 CP (SAE Trade No. 57)
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Neutral indicator light
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12V; 2 CP (SAE Trade No. 57)
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Turn signal indicator light
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12V; 2 CP (SAE Trade No. 57) |
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High beam indicator light
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12V; 2 CP (SAE Trade No. 57) |
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Position light
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12V; 4 CP
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