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 1976 KZ 400 Standard

Identification    
 Letter designation    D3
 Color     Diamond blue, Diamond copper
 Frame #    Lincoln, NE: K4-506001 ~ , Akashi: K4-044601~
 Engine #    Lincoln, NE: K4E051559 ~ , Akashi: K4E050601~
     
Dimensions    

 Overall length

   2,080 mm

 Overall width

   810 mm, EU: 775 mm

 Overall height

   1,120 mm, EU: 1,050 mm
 Wheelbase    1,360 mm, EU: 1.370 mm
 Road clearance    125 mm
 Dry weight    170 kg
 Fuel tank capacity    14 l
     
Performance     
 Climbing ability    24°
 Braking distance    13.5 m from 50 kph
 Minimum turning radius    2,300 mm
     
Engine     
 Type    SOHC, 2 cylinder, 4 stroke, air cooled
 Bore and stroke    64 mm x 62 mm
 Displacement    398 cc
 Compression ratio    9.4
 Maximum horsepower    36 hp @ 8,500 rpm
 Maximum torque    3.3 kg-m @ 7,500 rpm
 Valve timing    

Inlet

 

Open

Closed

Duration 

 26° BTDC 

 74° ABDC 

 280°

Exhaust

 

Open

Closed

Duration 

 68.5° BBDC 

 31.5° ATDC 

 280°

 Carburetors    (2) Keihin CVB36
 Lubrication system    Wet sump
 Engine oil Type 

 SAE 10W40, 10W50, 20W40, 20W50

  Capacity  2.6 l, 3.0 l total incl. filter 
 Starting system    Electric starter and kick 
 Ignition system    Battery and coil
 Cylinder numbering method    
 Firing order    
 Ignition timing    From 10° BTDC @ 1,100 rpm to 40° BTDC @ 2,800 rpm
 Spark plugs    ND W24ES or NGK B8ES
     
Transmission     
 Type    5-speed, constant mesh, return shift
 Clutch    Multi-disc, wet
 Gear ratio 1st   2.571
  2nd  1.684
  3rd  1.273
  4th   1.040
  5th   0.889
  6th   -
 Primary reduction ratio    2.435
 Final reduction ratio    3.000, EU: 2.933
 Overall drive ratio    6.493, EU: 6.348
   
Electrical equipment     
 Alternator    Nippon Denso 021000-3560
 Regulator/rectifier    Nippon Denso 026000-2490
 Ignition coils    Nippon Denso 029700-3430
 Battery    Yuasa 12N 12A-4A-1 (12V 12AH)
 Starter motor    Mitsuba SM242
 Headlight Type   Sealed beam, EU: Semi-sealed
  Bulb   12V 50/35W, EU: 12V 35/35W
 Tail/brake light    12V 8/27W, EU: 12V 5/21W
 City light    12V 4W
 Turn signal lights    12V 23W, EU: 12V 21W
 Meter lights    12V 3.4W
 Indicator lights    12V 3.4W
 Horn    12V 2.5A
     
Frame     
 Type    Tubular, double cradle
 Steering angle    41° to either side
 Castor    27°
 Trail    102 mm
 Tire size Front   3.25 - 18
  Rear   3.50 - 18
 Suspension Front   Telescopic fork
  Rear   Swing arm
 Suspension stroke Front   135 mm
  Rear   80 mm
 Front fork oil Type   SAE 5W20
  Capacity   155 ~ 165 cc each fork
  Oil level 
     
Brakes     
 Type Front   Single disc
  Rear   Internal expansion, leading-trailing
 Effective disc diameter Front   277 mm
 Brake drum inside diameter Rear   180 x 30 mm

 

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