Honda CB 400F
The CB400 Four is a little jewel of a motorcycle, produced in the Café racer style from 1975 to 1977. Its single overhead-cam inline-four engine is a conventional, two-valve per cylinder design, but the small dimensions of the engine internals allow it to rev to a dizzy-for-the-time l1000rpm.
The 408cc engine was developed from the CB350F powerplant, which had been rather underpowered for many riders. Though n ot an overly powerful motorcycle, the CB400's 28kW (37bhp), combined with a 178kg (3921b) dry weight, gives the little 400 exceptional performance for its capacity. The motor was extremely smooth, as well as willing, and was fairly reliable, although its high-rewing nature occasionally caused piston-ring wear. Screw and locknut valve adjustment and points ignition meant regular maintenance was required for optimal running.
Chassis technology in the mid-1970s was more than up to dealing with the little 400, a conventional telescopic front fork and twin-shock rear… Read more