The Zündapp CS25 (also Zündapp CS 25 ) is a moped from Zündapp . It was built from 1980 to 1984 and replaced the ZD 50 TS , Zündapps top moped at the time. After the factory went bankrupt and Royal Enfield bought the manufacturing rights , it was built under the name Zündapp Madras in Chennai , India until 1995 . These so-called India models are particularly unpopular among Zündapp fans. The moped is the type 448–140 (1980–1982) or 448–141 (1983–1984) of the Zündappwerke. In the same years the Zündapp Hai 25 (later renamed the CX 25) was manufactured, which is identical to the CS25 except for a few details. The Hai 25 is an enduro moped with three gears, but has spoked wheels and a raised exhaust.
Differences to the CS 50 The Zündapp CS 25 is the little sister of the Mokicks CS 50, which was built from 1979. There are the following differences, among others:
design-related maximum speed 25 km / h instead of 40 km / h
3-speed manual shift instead of 4-speed foot shift
Bell instead of horn (both have bell)
shorter seat (no pillion seat)
lower engine power
From 1981 the CS50 had a handlebar fairing and a tachometer
The CS50 had indicators as standard
Innovations from 1983 The following innovations were made from the year of construction 1983 (from then type 448-141):
Electronic, maintenance-free ignition system
Halogen headlights
new, more curved decor of the tank, the side cover and the rear spoiler
Brake light with 10 watts instead of 5 watts of power
Speedometer lighting with 1.2 watts instead of 0.6 watts
no longer available ruby red (metallic red and still stratosilver)
Oil filling volume of the telescopic fork increased by 40 cm³
Technical specifications All technical data given here refer to the model 448-140!
engine
criteria
Data
Type:
278-560
Design type:
Single cylinder two-stroke engine
Arrangement:
blocked with gear
Displacement:
actually 49.9 cm³ (according to the tax formula 49.0 cm³)
Drilling:
39 mm
Hub:
41.8 mm
Compression:
11: 1
High performance:
1 kW at 4000 rpm
Maximum torque:
3.6 Nm at 2600 rpm
Cooling:
Airstream
Lubrication:
Mixture lubrication 1:50
Carburetor
criteria
Data
Type:
Bing 17/10/106
Main jet:
48
Needle nozzle:
2.08
Needle position:
2
Needle number:
2
Slider number:
1
Idle jet:
36
Air correction:
1 × open
Elbow:
20/26 mm
Electrical system
criteria
Data
Type:
Bosch magneto generator 6 V / 19-5 / 10 W.
Ignition coil:
in the power generator
Spark plug / heat value:
Bosch W8D, Champion N10Y / 145
Electrode gap:
0.4 mm
Ignition time before TDC:
1.1 mm
Headlight lamp:
6 V, 15 W permanently dimmed
Taillight lamp:
6 V, 4 W.
Brake light bulb:
6 V, 5 W.
Speedometer lamp:
6V, 0.6W
transmission
criteria
Data
Design type:
Draw key gear drive
Number of gears:
3
Circuit:
Manual transmission
Gear oil and quantity:
SAE 80, 350 cc
1st gear ratio:
2.47
2nd gear ratio:
1.48
3rd gear ratio:
1.08
Coupling:
Multi-disc oil bath clutch
Primary drive:
Spur gears
Gear ratio engine:
4.33 (78:18 teeth)
Secondary drive:
Roller chain 1/2 × 3/16 ″, 114 links
Gear ratio rear wheel:
4.27 (47:11 teeth)
Overall ratio 1st gear:
45.67
Overall ratio 2nd gear:
27.33
3rd gear overall ratio:
19.99
chassis
criteria
Data
Design type:
Central tubular frame with beams
Front suspension:
Telescopic fork
Front suspension:
Coil springs
Rear suspension:
Tube long swing arm
Rear suspension:
Suspension struts with external spring
Impellers:
Die-cast aluminum wheels
Rim size:
WM 1 / 1.6 × 17 "
Tires:
2.75 - 17 "reinforced
Front tire pressure:
1.8 bar overpressure
Rear tire pressure:
2.0 bar overpressure
Brakes:
mechanical inner-shoe drum brake front and rear
Brake drum:
120 mm ∅
Fuel tank content:
8.8 liters (including about 1.4 liters reserve)
Weights, dimensions, consumption, speed
criteria
Data
Empty weight:
77 kg
Maximum weight allowed:
200 kg
Permissible front wheel load:
90 kg
Permissible rear wheel load:
170 kg
Wheelbase:
1200 mm
Length:
1860 mm
Width:
635 mm
Height:
1010 mm
Seat height:
740 mm
Standard fuel consumption:
about 1.5 liters per 100 km
Top speed:
25 km / h
Mountaineering ability in 1st gear:
34%
swell Zündapp CS 25 - operation and maintenance
Individual evidence
↑ Zündapp model history from 1952-1984 by Uwe Frensel, Heel Verlag, ISBN 978-3-89880-504-9
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