Honda CB 50 J.

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1978 Honda CB 50 J.
1978 Honda CB 50 J.

The Honda CB 50 J is a mokick from the Japanese manufacturer Honda .
In the colors blue, green and orange, it was offered in Germany from 1976 at a retail price of DM 1,699. Mobile models are available from 600 € today, well-preserved models from 1,200 €.

The CB 50 J was intended to be the successor to the aging SS50 model . It has a single-cylinder four-stroke engine with pressure circulation lubrication and a light metal cylinder with a cylinder liner that is tilted forward by 20 degrees. The chain-driven overhead camshaft actuates the two hanging valves in the cylinder head via rocker arms . In Germany they came as called. Mokick version 2 HP (1.4 kW) at 5,000 min -1 , 4 courses and a maximum authorized speed of 40 km / h on the market. In other countries, they had 6 or 6.3 hp at 10,500 min -1 and a five-speed gearbox.
It was reduced in power, among other things, by a thinner inner pipe in the manifold, a smaller 13 mm carburettor and a negative ignition adjustment in the pole wheel, which shifted the ignition point in the direction of "late" instead of "early" from 6000 revs. By fixing the centrifugal force weights on the ignition timing, this limitation can be prevented and the engine then reaches higher speeds. This manipulation or changes to the manifold or carburetor invalidates the operating license .

Compared to other mokicks, the Honda scored points in its year of publication with the four-stroke engine, a mechanical disc brake at the front, a tachometer and the passenger footrests, which are not attached to the swing arm. Weak points compared to other mokicks were breaking rear shock absorbers, which were related to the construction of the luggage rack, a rather quickly rusting exhaust and a leaky ignition coil, which led to fault currents in the rain. The motor is considered to be very robust simply because of the speed throttle.

The first CB 50 from 1967 had a horizontal cylinder as the Honda SS 50, 3.9 kW (5.3 hp) at 11,000 min -1 and reached top speeds of over 80 h km /.

Technical specifications

engine Single cylinder four-stroke engine , air-cooled, 2 valves

hanging over overhead chain-driven camshaft and rocker arm

Mixture preparation Keihin PC 13 A - round slide carburetor
Bore × stroke 42 × 35.6 mm
Displacement 50 cc
Compression ratio 9.5: 1
Maximum power 2 HP (1.4 kW) at 5000 min -1
Max. Torque 2.9 Nm at 5000 min -1
coupling Multi-disc clutch in an oil bath
transmission 4 courses
Final drive 420 roller chain, 102 links, 12 pinion and 42 sprocket
Top speed 40 km / h
ignition Momentum light magneto (58 W)
starter mechanical kick starter
Board electrics 6 volt system, 4 Ah battery
Dimensions (L × W × H) 1795 mm × 665 mm × 965 mm
wheelbase 1175 mm
Seat height
Tank capacity 8.5 liters, approx. 1 liter reserve
chassis Tubular frame
Front suspension Telescopic fork
Rear suspension Swing arm with five-way adjustable spring legs
Brakes in front mechanically operated disc brake (240 mm)
Rear brakes 110 mm simplex drum brake
Rims front / rear Wire spoke wheels with steel rims
Front tires 2.50-17 (4-PR)
Rear tires 2.75-17 (6-PR)
Empty weight 87 kg
Perm. total weight 247 kg
consumption in Ø 1.7 l per 100 km

  • Honda CB 50, 1967