Robin America EY20 manuals

Robin america EY20 Service Manual (62 pages)

Brand: Robin-america | Category: Engine | Size: 1.16 MB |

English

Table of contents

EY15-3, EY20-3

1

CONTENTS

3

1. SPECIFICATIONS

4

2. PERFORMANCE

5

2-4 PERFORMANCE CURVES

6

4-1 CYLINDER AND CRANKCASE

9

4-2 MAIN BEARING COVER

9

4-3 CRANKSHAFT

9

4-4 CONNECTING ROD AND PISTON

10

4-5 CAMSHAFT

10

4-6 VALVE ARRANGEMENT

10

4-7 CYLINDER HEAD

11

4-8 GOVERNOR SYSTEM

11

4-9 COOLING SYSTEM

11

4-10 LUBRICATION SYSTEM

11

4-12 CARBURETOR

12

4-13 AIR CLEANER

12

4-11 IGNITION SYSTEM

12

4-14 SECTIONAL VIEW OF ENGINE

13

Fig. 4-14

14

5. DISASSEMBLY AND REASSEMBLY

15

5-3 DISASSEMBLY PROCEDURES

16

Fig. 5-4

17

Fig. 5-6

18

Fig. 5-5

18

Fig. 5-7

19

Fig. 5-8

19

Fig. 5-9

20

Fig. 5-10 Fig. 5-11

21

Fig. 5-13

21

Fig. 5-12

21

Fig. 5-14

22

5-4-2 PISTON AND PISTON RINGS

23

5-4 REASSEMBLY PROCEDURES

23

5-4-1 CRANKSHAFT

23

Table. 1

24

5-4-4 TAPPET AND CAMSHAFT

25

5-4-5 MAIN BEARING COVER

25

Table. 2

26

5-4-7 TAPEET ADJUSTMENT

27

5-4-8 CYLINDER HEAD

28

5-4-9 SPARK PLUG

28

Flywheel Tightening torque

29

60-65N・m

29

(600-650kg・cm)

29

(43.4-47.0ft・lb)

29

Table. 3

30

6. GOVERNER ADJUSTMENT

31

Fig. 6-5

32

7. CARBURETOR

33

7-1-2 SLOW SYSTEM

34

7-1-3 MAIN SYSTEM

34

7-1-4 CHOKE

34

7-2-1 THROTTLE SYSTEM

34

7-2-2 CHOKE SYSTEM

34

7-2-3 SLOW SYSTEM

35

7-2-4 MAIN SYSTEM

35

7-2-5 FLOAT SYSTEM

35

Ignition timing

36

8-3 MAGNETO TROUBLESHOOTING

37

9. OIL LEVEL SENSOR (OPTION)

38

10. RECOIL STARTER

39

10-1-2 ASSEMBLY STEPS

40

About 200mm from the reel

41

10-1-3 CHECK AFTER REASSEMBLY

42

10-1-4 OTHER GUIDES

42

10-2-1 DISASSEMBLY STEPS

43

10-2-2 ASSEMBLY STEPS

44

Fig. 10-15

45

Fig. 10-16

45

10-2-3 CHECK AFTER REASSEMBLY

46

10-2-4 OTHER GUIDES

46

11. INSTALLATION

47

12. CHECKS AND CORRECTIONS

48

13.TROUBLESHOOTING

49

13-2. INSUFFICIENT OUTPUT

50

13-3. OVERHEAT

50

13-4. ROUGH IDLING

51

13-6. HIGH FUEL CONSUMPTION

52

13-7. DETONATION

52

14. SERVICE DATA

53

Unit : mm (in.)

54

Unit : mm (in)

57

14-2 TORQUE SPECIFICATIONS

59

14-3 OIL GRADE CHART

59

15. MAINTENANCE AND STORAGE

60

PRINTED IN THE USA

62

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