Honda CY 50

Honda CY 50 (not 100% original condition)

Honda
Honda CY 50
Manufacturer	Honda
Sales description	Honda CY 50
Production period	1977 to 1983
class	Moped
Motor data
air-cooled single cylinder four-stroke engine
Displacement  (cm³)	49
Power  (kW / PS )	1.5 kW (2.1 hp) at 5,500 rpm
Torque  ( N m )	2.8 Nm (0.29 mkp) at 5,000 rpm
Top speed (  km / h)	40
transmission	Four-speed transmission
drive	Chain drive
Brakes	Cable-operated mechanical simplex drum brake at the front, rod-operated mechanical simplex drum brake at the rear
Wheelbase  (mm)	1,120
Dimensions (L × W × H, mm):	1,800 × 750 × 910
Seat height (cm)	64
Empty weight  (kg)	87
Previous model	Honda Dax

The CY 50 is a moped from the Japanese manufacturer Honda , which was also sold in Germany from 1977 to 1983 as the successor to the Honda Dax . The uncovered two-wheeler has an air-cooled single-cylinder engine with 50 cm³ displacement , the four-stroke engine has an output of 1.5 kW (2.1 HP). In contrast to the Dax with a horizontal motor, the motor of the CY 50 is installed upright.

The Honda CY 80 was also imported as a larger, but much rarer model . The road version Honda CB 50 and the enduro version XL 50 were also built with comparable engine technology .

particularities

It was advertised as a special feature that “ ... it does not require a fuel-oil mixture, but normal gasoline. This keeps the engines clean right through to the exhaust. Typical of the 4-stroke technology are the rich, round run and the low fuel consumption. And what runs smoothly lasts a long time ... These mokicks have the great technology from Honda. "

Especially for the German sales market with its then road traffic approval regulations (StVZO), the engine was provided with a speed limiter which, together with the spark plug, the preset ignition point, the carburetor and the gear ratio - all in the standard delivered - only reached a maximum speed of around 40 km / h. Detailed solutions adopted from the motorcycle sector, such as tubular frames, tanks, seats, side covers and helmet attachment options, as well as the four-stroke engine with vertical cylinder , overhead camshaft and real gearbox with wet clutch, made it a miniature motorcycle. The designers of the " Frech-Dax " - as the CY 50 was called in the Honda advertising - had developed various improvements for this model that were also incorporated into production, which at that time were still missing in the products of the competition besides the four-stroke technology described above. For example, the five-way adjustable rear suspension struts to adjust the spring preload to the load, a trip meter in the speedometer and a six-liter tank that allowed a range of around 200 kilometers.

Luggage racks at the rear and at the front even allowed a versatile work use, for example when transporting various hobby equipment . Front and rear wheel rims ( rims ) that can be unscrewed allow extensive care, immediate hose repair and easy changing of the casing in a problem-free self-assembly.

Weak points

A weak point of the model are the factory-made rigid mounting tubes for the front and rear indicators, which is why even slight falls can cause significant damage, especially to the front indicators and their mounting (see picture).

The valve seats with valve rings manufactured at that time and the built-in valves require that the engine be driven predominantly or at least occasionally with leaded regular and premium gasoline , which is no longer available at petrol stations . A declaration authorized by the manufacturer that continuous operation without the addition of lead in the fuel will sooner or later definitely not cause any damage to the relevant engine is not known. From a list posted on the Internet by Honda, however, it can be seen that the CY 50 can also be driven with normal unleaded petrol (DIN 51607; at least 91 RON ).

The design-related output of the alternator (swing light generator) with six-voltage electrics was not designed for this mokick to be always driven with the lights switched on, as prescribed after the later amendment of the StVO in the Federal Republic of Germany. Therefore, with this alternator in this driving mode, especially with predominantly short-distance traffic, the optimal charging of the standard accumulator (on-board battery - 6 V, 4 Ah) is no longer guaranteed while driving, which can lead to the fact that after some time the 21- Watt lightbulbs (6 V) will lose their function.

The standard fuel filler cap, which was part of the delivery condition, at least in Germany, was not lockable. In addition, the only signaling device in this country was a bicycle bell.

Cult status

Today the Honda CY 50 has become a sought-after collector's item and has cult status . For a well-preserved CY, the list price of 1,000 euros and more is paid again today.

There is a homepage dedicated to the Honda CY 50, CB 50 and XL 50. Information and downloads are provided with lots of details ; In the linked forum, everyday problems after the long life of the " oldtimer " are discussed and answered; In addition, measures are described to upgrade the old small motorcycles to the latest standards (e.g. safety, electrics and performance).

Further technical details

• Overhead camshaft with two valves
• Carburetor: Keihin, type PC 15 A / main jet: 62 #, idle jet: 35 #
• Fuel: (at least occasionally) leaded regular or premium gasoline
• Multi-disc clutch in an oil bath
• Transmission: four-speed claw-shift transmission (CY80 5-speed) with foot shift
• Kickstarter
• Standing noise 60 dB
• Driving noise 70 dB
• Frame: welded steel half-shells or single-loop steel tube
• Oil-dampened telescopic fork at the front, spring travel 104 mm
• Swing arm with five-way adjustable spring struts at the rear, spring travel 65 mm
• Total height including rearview mirror 980 mm
• Handlebar width 740 mm
• Handlebar height 910 mm
• Permissible total weight 245 kg
• Ground clearance 140 mm
• Cable-operated mechanical simplex drum brake at the front
• Link-operated mechanical simplex drum brake at the rear
• Balloon tires 5.4 × 10 "4PR at the front (corresponds to 130 / 90-10 today) / 5.4 × 10" 8PR at the rear - on 4 "sheet steel rims screwed together
• electrical system: 6 volts
• On-board battery: 6 V, 4 Ah
• Due to the design, no faster than approx. 40 km / h top speed

literature

• CY 50 , HONDA workshop manual

Individual evidence

1. ↑ in the driver's manual supplied as an accessory, p. 25: " Use petrol with a low lead content ... "
2. ↑ Archived copy ( Memento of the original from July 18, 2014 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Unleaded refueling (PDF file) 
3. ↑ http://www.cy50.de/ CY50 / CB50 / XL50 homepage
4. ↑ Archived copy ( Memento of the original from May 28, 2008 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. associated forum 
5. ↑ CY-Wiki ( Memento of the original from August 25, 2011 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.