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I. TECHNICAL DATA AND RIDING
INSTRUCTION
TECHNICAL DATA
Engine — two-stroke, air-cooled
Number of cylinders — single
Bore — 38 mm
Stroke — 44 mm
Cylinder capacity — 49.9 c. c.
Compression ratio — 9,2 to 1
Maximum power output — 3.5 HP at 6,500 r p m.
[2.65 HP at 6,500 r.p.m}
Fuel tank capacity — 1.2 galls. (5.5 litres)
Weight - dry - 143 lbs. ± 2% (65 kg ± 2%)
Payload - 352 lbs. (160 kg)
Primary drive - by CZ-Favorit chain 3/8 x 3/8 in.,
44 links (CSN 023321.1) .
Final drive - by chain 12.7 x 5.2; 111 links
[by chain 12.7 x 5.2; 111+1 links with ratio 11/55 teeth]
Overall gear rations I. II.
Bottom gear 27.72 to 1 30.03 to 1
Second gear 15.18 to 1 16.44 to 1
Top gear 10.27 to 1 11.13 to 1
Carburettor — Jikov 2917 PSb
Wheels — front and rear interchangeable
rims - 1.50 A x 16 in.
tyres - 2.75 x 16 in.
Internal expanding brakes — dia. 125/20 mm
Front wheel suspension — telescopic fork,
suspension travel 90 mm ;
Rear wheel suspension — pivoted rear fork with
dampers, suspension travel 85 mm
Magneto — 6V with windings for feeding the
ignition coil, the headlamp bulb 15/15 W,
and the identity end plate bulb 5 W
[headlamp bulb 25/25w + stop light bulb 10w]
[Battery - YANASA 6N4-2A-4 with fuse, stop switch BURGESS]
Ignition coil — 8 V, 02-9210.30
Sparking plug — PAL 14-8R with suppressor
Average fuel consumption — 0.5 galls / 60 miles
2.3 lt. / 100 km.
Maximum speed - 37 mph. (60 kph.)
[30 mph +5mph]
Maximum climbing ability — 25%
[Supplement for
JAWA 50 type 223.220 in italics]
2 of 18 JAWA 50 type 20, 21, 23, 23A Owners Handbook page 6 to 8/9 jkw
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