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77-78 DT400 D&E Specifications

Model

DT400 D&E

 

Year

1977-78

 Yamaha DT400 78  1

Frame/Engine Prefix   (XXX-000101)

1M2/1R6[1]

Bore (mm)

85

Stroke (mm)

70

Capacity (cc)

397

Compression Ratio (to 1)

6.4

Bhp @ rpm

 23 hp @ 5500 rpm

Model Notes

Torque (kgm) @ rpm

 2.9 kgf-m @ 3900 RPM  

Pictures only show one year on multi-year bikes. Check VIN tables for colors for your specific year.

Oil System

Autolube

Engine Cooling

Air

Carburetor (mm)

VM34SC

Ignition System

CDI

Ignition Timing (mm)

2.9

Primary drive gearing

2.83

Final Drive Gearing

45/16

Box Gearing first

2.71

Box Gearing second

1.79

Box Gearing third

1.30

Box Gearing fourth

1.0

Box Gearing fifth

0.77

Box Gearing sixth

-

Fuel Cap. (liters)

9

Engine Oil Cap. (liters)

1.2

Gearbox Oil Cap. (Liters)

1.2

Fork Oil Ca. (cc/leg)

190

Front Tire (stock)

3.00 X 21

Rear Tire (stock)

4.00 x 18

Front Brake

Drum

Rear Brake

Drum

Rear Suspension

Monoshock

Front Susp. Travel (mm)

 

Rear Susp. Travel (mm)

 

Rake (degrees)

28.5

Trail (mm)

120

Width (mm)

870

Ground Clearance (mm)

255

Wheelbase (mm)

1,415

 logosmall

Dry Weight (kg)

125

   
   

[1]  = EUROPE

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