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1953 Zundapp KS601 Specifications - Engine
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The Zundapp model KS601 was produced from 1950 to 1958. During those years a total of just over
5000 were built in three variants; the KS601 through 1957 with plunger suspension, the KS601
Sport from 1952 to 1957 with more horsepower, and the KS601 Elastic from 1957 to 1958 with the
Sport engine and swingarm rear suspension. The American versions were apparently equipped with
a tandem upholstered seat rather than the solo saddle.
The following specifications are primarily from Section A, Technical Details, of the 1953
Operation-Instructions for Zundapp Motorcycle Model KS601. I have added data for the different
versions where appropriate, relating for the most part to engine output and chassis details and gathered
from diverse sources. Be aware there were some discrepancies among my various documents. I was
occasionally forced to make my best guess regarding dates, output, weight, etc., so this
compilation is not God's word on the subject, but I'd say the percentage of error is negligible.
As with the rest of this website, I'd welcome any knowledgeable input.
I pretty much stuck to the spelling, capitalization, and punctuation from the manual, so if it
looks a little weird tell Zundapp about it (If it's spelled wrong tell me about it). If
you have a later release of the Operation-Instructions manual I would sure appreciate a scan of
the spec's pages to make comparisons.
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Printable wiring diagram
for Zundapp KS601.
Page 7 Engine
Page 8 Carburettor & Chassis
Page 9 Chassis & Dimensions
Page 10 Gasoline and Oil Quantities
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(A) Technical Details
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Engine:
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Type of operation
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Stroke
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bore
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Number of Cylinders
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cubic Capacity
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compression Ratio
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Four-stroke
67.6 mm
75 mm
2
597 cc
1 : 6.4 - 6.7
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Power Output
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KS601
1950-1957
28 HP at 4700 R.P.M.
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KS601 Sport ('52-'58)
& Elastic ('57-'58)
34 HP at 4700 R.P.M./
38.5 HP at 6000 R.P.M.
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Engine Torque
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max. 4.38 mkg at 3950
R.P.M. (31.7 Lb/Ft)
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max. 4.9 mkg at 3550(?)
R.P.M. (35.4 Lb/Ft)
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Piston Clearance
(with cold engine)
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Valve Play
(with cold engine)
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Valve Cycle (adjust with
1.0 mm valve play)
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Battery-Lighting Set
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Adjustment
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Ignition Timing
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Type of Sparkplug
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Distance between Plug
Electrodes
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Type of Battery
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Cooling System
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Engine Lubrication
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Oil Pump
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Consumption
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0.08 mm
Intake 0.20 mm
Exhaust 0.25 mm
Intake opens 12° before T.D.C.
Intake shuts 48° after L.D.C.
Exhaust opens 54° before L.D.C.
Exhaust shuts 6° after T.D.C.
Noris DS 6/50/70 Set
(automatic voltage control)
6 Volts, 50/70 Watts;
starting with No. 551844:
Noris DSa 6/90 L, 6 Volts, 90 Watts.
by hand;
starting with No. 551844 automatic
Advanced ignition 10 mm (40°)
before T.D.C.
Bosch W 225 T 1 or
Beru K 225 b 1/14
0.7 mm
8 amp/h battery with internal
terminals
Air Cooling
Circulating type Lubrication
Gear Pump (automatic)
normally 1 litre per 1,000 km
(600 miles)
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- 7 -
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Page 7 Engine
Page 8 Carburettor & Chassis
Page 9 Chassis & Dimensions
Page 10 Gasoline and Oil Quantities
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Last updated 03-08-16
Email:
mechanique at wmol dot com
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