Table of Contents
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JAWA 50, Types-20, 21, 23, 23 A
The JAWA 50, model 20 Lightweight scooter you
have just acquired is the result of many years of
development of the well known JAWA 50, model
550, 555 and J-05 motorcycle.
The experience gained with the previous models
has been applied to the design of the scooter and
many new features introduced.
Modern design, higher engine power, improved
suspension and perfect weather protection, provide
reliable and comfortable riding as well as easy
handling.
This Manual will help you to become acquainted
with your mount and to acquire the necessary
knowledge of its components and their operation.
It will advise you on maintenance and now to
remedy minor defects. In your own interest rely on
the Manual for information; you will thus avoid
possible damage to your machine.
Accept our best wishes for many thousands of
pleasant and joyful miles with your new scooter.
IMPORTANT
The right to alter the design as a result of further
development of the machine regardless of the
illustrations and description in the Manual is
reserved.
1 of 18
www.jawamoped.com
LIGHTWEIGHT SCOOTER
SPECIFICATION AND OPERATOR'S MANUAL
Cylinder capacity
Maximum power output 3.5 HP at 6,500 r. p. m.
Manufacturers
Exporters
Povazské strojárne,
National Corporation,
Povazská Bystrica
JAWA 50 type 20,21,23,23A owners handbook pages 1 to 5
49.9 c. c.
Povazske strojarne,
Povazska Bystrica
MOTOKOV•PRAHA•CSSR
INDEX
I Technical data and riding instructions 7
4. Replacing the chain wheel ball bearing
IV. Jawa 50 - type 21, Sports
VI. Detects, causes and remedies
7
8
13
18
18
18
19
25
26
28
29
31
33
34
35
37
40
40
40
43
45
44
45
46
47
48
50
51
53
54
55
55
59
63
jkw
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Summary of Contents for JAWA 50
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Page 1: Table Of Contents
IV. Jawa 50 — type 21, Sports The right to alter the design as a result of further V. Jawa 50 — types 23 and 23A Mustang 61 development of the machine regardless of the VI. Detects, causes and remedies illustrations and description in the Manual is reserved. -
Page 2: Technical Data
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... -
Page 3: Running In A New Machine
Rinse with rinsing oil and refill (see Part II, Para 2). h) Having covered 6,000 miles (10,000 km) change the oil in the gearbox for the second time 3 of 18 JAWA 50 type 20, 21, 23, 23A Owners Handbook Page 8/9 to 12... -
Page 4: Riding Instructions
Second gear is thus engaged. Release quickly the Main and dipped beam is controlled by the dip clutch lever and open the throttle. switch on the L.H. handlebar. 4 of 18 JAWA 50 type 20, 21, 23, 23A Owners Handbook page 13 to 16... -
Page 5: List Of Tools
The tyre inflator is located under the dual seat. The remaining tools are fastened to the frame with rubber bands under the front cowl. 5 of 18 JAWA 50 type 20, 21, 23, 23A Owners Handbook page 16 to 20... -
Page 6: Adjusting The Brakes
The tail lamp bulb employed is 6 V 10 W. 6 of 18 JAWA 50 type 20, 21, 23, 23A Owners Handbook page 20 to 25... -
Page 7: Lubrication Chart
1 (petrol with Castrol SAE 40-50 or Shell at a ratio of 20 to 1) After running in period (having covered 90 miles – 1,500 km) with Castrol SAE 40-50 or Shell at a ratio of 24 to 1 and 30 to 1... -
Page 8: Tyres
(do not tighten). 8 of 18 JAWA 50 type 20, 21, 23, 23A Owners Handbook page 26 to 29... -
Page 9: The Clutch And Its Adjusting
Microfilter is neither washed nor oiled. The change of microfilter takes place after driving 10,000 - 15,000 km (6,000 - 9,000 miles). 9 of 18 JAWA 50 type 20, 21, 23, 23A Owners Handbook page 29 to 33... -
Page 10: Electrical Equipment Maintenance
Do not forget to retighten the clips after the setting. Then check the ignition advance and the contact breaker point gap. 10 of 18 JAWA 50 type 20, 21, 23, 23A Owners Handbook page 33 to 35... -
Page 11: Decarbonisation
(16) Lubricate the steering head ball bearing (15) Check the operation of the pivoted rear fork dampers, if necessary, top up the damper liquid. 11 of 18 JAWA 50 type 20, 21, 23, 23A Owners Handbook page 35 to 39... -
Page 12: Dismantling And Assembling Without Special Tools
Catch the motorcycle at the grip on the rear cowl and lift it in so that the wheel could freely fall out. 12 of 18 JAWA 50 type 20, 21, 23, 23A Owners Handbook page 40 to 43... -
Page 13: Tipping Up The Seat
After unscrewing two M6 nuts in the top portion same piston groove as before the removing. 13 of 18 JAWA 50 type 20, 21, 23, 23A Owners Handbook page 43 to 47... -
Page 14: Replacing The Piston Rings
D. Make the front fork play. front fork or steering head have to be E. According to Part III, Para 9 replace the headlamp cowl and headlamp. 14 of 18 JAWA 50 type 20, 21, 23, 23A Owners Handbook page 47 to 50... -
Page 15: Pivoted Rear Fork
Part II, Para 6. cable and remove the throttle valve together with the top. 15 of 18 JAWA 50 type 20, 21, 23, 23A Owners Handbook page 51 to 55... -
Page 16: Replacing The Brake Cable
When dismantling according to the fig. no, a 1. By means of screwdriver put out the cover from one groove 2. The cover remove from the R. H. cover. 16 of 18 JAWA 50 type 20, 21, 23, 23A Owners Handbook page 55 to 57... -
Page 17: Jawa 50 - Types 23 And 23A Mustang
3years. For the engine (for fuel) is used SAE 30 oil Jawa 50 types 20 and 21. The technical while running-in in ratio 1:20, after running-in parameters, service and maintenance are 1:30. 17 of 18 JAWA 50 type 20, 21, 23, 23A Owners Handbook page 58 to 61... - Page 18 Throttle cable sticks Lubricate cable, if necessary replace Engine overheated Let engine cool off and keep at low revolutions Faulty sparking plug Replace plug 18 of 18 JAWA 50 type 20, 21, 23, 23A Owners Handbook page 63 to 68...