|
Make Model |
Honda CB 400T II Hawk |
|
Year |
1978 |
|
Engine |
Air cooled, parallel twin cylinder, four stroke, SOHC, 3 valves per cylinder, 360° crankshaft and twin balance-shafts |
|
Capacity |
395 |
| Bore x Stroke | 70.5 x 50.6mm |
| Compression Ratio | 9.3:1 |
|
Induction |
2x 32mm Keihin carbs |
|
Ignition / Starting |
CDI |
|
Max Power |
26,8 HP @ 8000 rpm |
|
Max Torque |
21,39 lb-ft @ 5000 rpm |
|
Transmission / Drive |
5 Speed / chain |
|
Front Suspension |
Telescopic forks |
|
Rear Suspension |
Dual EVO dampers with 5-way spring preload adjustment. |
|
Front Brakes |
Single 282mm disc |
|
Rear Brakes |
153mm Drum |
|
Front Tyre |
3.60 S19 |
|
Rear Tyre |
4.10 S18 |
|
Wet-weight |
177 kg |
|
Fuel Capacity |
13 Litres |
|
Consumption average |
48.5 mp/g |
|
Standing ¼ Mile |
14.6 sec / 89.1 mp/h |
|
Top Speed |
105.9 mp/h |
Having introduced the first four-cylindered motorbikes for the 350; 400; 500; 550 and 750 -classes, Honda seemed to take a step back with this parallel twin with classic 360° crank-layout. Nevertheless the engine showed to be reliable and sturdy and was to be a long living design used in all Honda's 400 & 450 twins for the next 10-15 years.
The distingtives of the engine, beside of the 360° crank, is: Heavy oversquared cylinder-layout; 3-valve design of the combustion chamber, tandem balance-shafts in the front left side of the engine and CDI ignition.
Beside of this, during time, almost classic engine, the CB400T also introduced the so called "Com-Star" compound aluminium-rims, using tubeless tyres for the first time - This together with the other models of same year mounted with the remarkable Com-Star rims!
The rather stubby design of the CB400T changed when Honda short after introduced the new "Euro-line" -design with the CB900 Bol d'Or. In the meantime it was launched in a version with the same design as the CX500 Costum: The CM400.
Later was the engine changed to 450ccm in the hunt for bigger torque, meanwhile the power remained the same. As for the 400, the 450 also showed up in several bike-designs during time!
Source Kim Nielsen
