www.jawamoped.com
LIGHTWEIGHT SCOOTER
JAWA 50, Types-20, 21, 23, 23 A
SPECIFICATION AND OPERATOR'S
MANUAL
Cylinder capacity
49.9 c. c.
Maximum power output
3.5 HP at 6,500 r. p. m.
Manufacturers
Povazske strojarne,
Povazska Bystrica
Exporters
MOTOKOV•PRAHA•CSSR
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.
Povazské strojárne,
National Corporation,
Povazská Bystrica
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.
INDEX
I Technical data and riding instructions 7
1 Technical data 7
2 Running in a new machine 8
3. Riding instructions 13
4. List of tools 18
II. Maintenance 18
1. Cleaning the scooter 18
2. Lubricating the scooter 19
3. Adjusting the brakes 25
4. Tyres 26
5. Adjusting the chain 28
6. The clutch and its adjusting 29
7. The ,,JIKOV" 2917 PSb carburettor 31
8. Electrical equipment maintenance 33
9. Headlamp adjustment 34
10. Decarbonisation 35
11. Scooter maintenance table 37
III. Dismantling and assembling without
special tools 40
1. Removing the front wheel 40
2. Removing the rear wheel 40
3. Replacing the wheel ball bearings 43
4. Replacing the chain wheel ball bearing 45
5. Tipping up the seat 44
6. Dismantling and assembling the cowls 45
7. Removing and replacing cylinder barrel 46
8. Replacing the piston rings 47
9. Dismantling the headlamp 48
10. Dismantling the front fork 50
11. Pivoted rear fork 51
12. Replacing the speedometer flexible shaft51
13. Replacing the throttle cable 53
14. Replacing the clutch cable 54
15. Replacing the brake cable 55
16. Removing the engine from the frame 55
IV. Jawa 50 — type 21, Sports 59
V. Jawa 50 — types 23 and 23A Mustang 61
VI. Detects, causes and remedies 63
1 of 18 JAWA 50 type 20,21,23,23A owners handbook pages 1 to 5 jkw
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