KZR's Bikes of the Month for 2025

1980 KZ 750 LTD Twin  
Identification    
 Letter designation    G1
 Color     
 Frame #    
 Engine #    
     
Dimensions    

 Overall length

   2,170 mm

 Overall width

   835 mm

 Overall height

   1,235 mm
 Wheelbase    1,460 mm
 Road clearance    160 mm
 Dry weight    206 kg
 Fuel tank capacity    14.5 l
     
Performance     
 Climbing ability    30°
 Braking distance    12 m from 50 kph
 Minimum turning radius    2.5 m
     
Engine     
 Type    4 stroke, DOHC, 2 cylinder, air cooled 
 Bore and stroke    78 mm x 78 mm
 Displacement    745 cc
 Compression ratio    8.5
 Maximum horsepower    55 hp @ 7,000 rpm
 Maximum torque    6.2 kg-m @ 3,000 rpm
 Valve timing    

 Inlet


Open

Closed

Duration 


 Exhaust


Open

Closed

Duration 


 Carburetors    (2) Mikuni BS28
 Lubrication system    Wet sump
 Engine oil Type   SAE 10W40, 10W50, 20W40, 20W50
  Capacity  4.0 l
 Starting system    Electric starter and kick
 Ignition system    Battery and coil (transistorized)
 Cylinder numbering method    
 Firing order    
 Ignition timing    From 5° BTDC @ 1,000 rpm to 30° BTDC @ 3,750 rpm
 Spark plugs    NGK B6ES or ND W20ES-U
     
Transmission     
 Type    5 speed, constant mesh, return shift
 Clutch    Multi-disc, wet
 Gear ratio 1st   2.33
  2nd  1.63
  3rd  1.27
  4th   1.04
  5th   0.89
  6th   -
 Primary reduction ratio    2.48
 Final reduction ratio    2.38
 Overall drive ratio    5.23 @ top gear
   
Electrical equipment     
 Alternator    
 Regulator/rectifier    
 Ignition coils    
 Battery    
 Starter motor    
 Headlight Type   
  Bulb   12V 50/35W
 Tail/brake light    12V 8/27W
 City light    
 Turn signal lights    12V, 23W
 Meter lights    12V, 3.4W
 Indicator lights    12V, 3.4W
 Horn    12V, 2.5A
     
Frame     
 Type    Tubular, double cradle
 Steering angle    
 Castor    27.5°
 Trail    110 mm
 Tire size Front   3.25 - 19
  Rear   130/90 - 16
 Suspension Front   Telescopic fork
  Rear   Swing arm
 Suspension stroke Front   
  Rear   
 Front fork oil Type   
  Capacity   
  Oil level   
     
Brakes     
 Type Front   Single disc
  Rear   Drum
 Effective disc diameter Front   
  Rear   

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