YS DZ170, Operator'S Manual

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# Part# Description QTY
1 YS5900 Crankcase 1
2 YS4495 Valve cover 1
3 YS0510 Head cover gasket 1
4 YS0515 Valve cover screw set 2
5 YS5905 Head gasket 1
YS5910 Head assembly
6 YS4505 Cylinder head 1
7 YS2160 Intake valve 1
8 YS2165 Exhaust valve 1
9 YS5915 Exhaust valve spring 1
10 YS5920 Intake valve spring 1
11 YS2175 Spring retainer set 2
12 YS2180 Valve spring retainer clips 4
13 YS0555 Rocker arm set 2
14 YS4510 Intake tappet adjusting screw 1
15 YS4515 Exhaust tappet Adjusting screw 1
16 YS0565 Tappet adjusting lock nuts 2
17 YS0570 Rocker arm shaft 1
18 YS0575 Rocker arm shaft screw 1
19 YS0580 E ring set 2
20 YS2615 Head bolt set 5
21 YS5925 Crankshaft 1
22 YS2190 Crankshaft ring 1
23 YS5930 Cylinder liner 1
24 YS5935 Piston 1
25 YS5940 Wrist pin 1
26 YS5125 Piston ring 1
27 YS5945 Connecting rod 1
YS5980 Back plate assy.
28 Back plate 1
29 Disc valve 1
30 Disc valve pin 1
31 Disc valve screw 1
32 YS0645 Back plate gasket 1
33 YS4550 Carburetor insulator 1
34 YS4705 Iusulator gasket 1
35 YS4560 Back plate screw set 6
36 YS0655 Cam gear cover 1
37 YS0660 Cam gear cover O-ring 1
38 YS0665 Cam gear cover screws set 2
39 YS4565 Cam 1
40 YS5985 Cam followers 2
41 YS4580 Exhaust push rod 1
42 YS4585 Push rod cover 1
43 YS0690 Push rod cover O-ring 4
44 YS1050 Front bearing 1
45 YS1730 Front bearing oil seal 1
46 YS0701 Rear bearing 1
47 YS0705 Cam gear bearing set 2
YS5950 Pump assembly
48 Regulator body 1
49 YS0195 Regulator adjusting screw 1
50 YS0725 Regulator adjusting screw O-ring 1
51 YS4605 Diaphragm 1
52 YS4610 Regulator spring 1
53 YS4615 Regulator screw set 2
54 Fuel pump body 1
55 YS4625 Pump valve 2
56 YS5990 Pump valve spring 2
57 Pump plate 1
58 YS4640 Pump screws 2
59 YS4645 Pump gasket 1
60 Plunger 1
61 YS4655 Pump insulator 1
DZ170 Parts list
62 YS4660 Insulator O ring 1
63 YS4665 Pump bracket 1
64 YS4735 Upper push rod 1
65 YS4740 Lower push rod 1
YS4745 Carburetor assembly
66 YS4750 Carburetor body with throttle barrel 1
67 Throttle barrel 1
YS2740 Needle valve assembly
68 YS2690 High speed needle valve 1
69 YS2695 High speed needle valve O-ring 1
70 YS2700 High speed needle seat 1
71 YS2705 Needle valve socket O-ring set 2
72 YS2710 Needle valve detent 1
73 YS4755 Throttle barrel seal 1
74 YS1090 Throttle barrel retainer 1
75 YS0785 Throttle stop screw 1
76 YS0790 Throttle stop spring 1
77 YS0200 Throttle arm set 1
78 YS4760 Carburetor gasket 1
79 YS2715 Drive washer 1
80 YS2720 Drive washer retainer 1
81 YS6000 Intake pipe 1
82 YS0840 Intake pipe O-ring 4
83 YS1540 Wrist pin access plug 1
84 YS0825 Propeller washer 1
85 YS6145 Propeller nut set HEX13mm 2
86 YS4723 Wrist pin access screw 1
87 YS5130 Check valve 1
YS4710 Gasket set 4
YS4715 O ring set 14
YS4720 Fuel tank clunk 1
YS5970 Tube holder 1
YS Parts and Service
1370 PORTER DRIVE MINDEN NEVADA 89423
Phone: 775-267-9252 Fax: 775-267-9690
56
56
52
69
76
82
35
82
43
43
B
C
D
A
4
2
3
1
5
71
74
85
86
64
63
54
60
65
61
62
59
55
55
57
51
58
48
50
49
DETAIL D
53
70
72
68
78
66
75
73
67
77
DETAIL C
DETAIL B
28
32
29
30
81
35
34
21
33
46
83
47
39
47
37
36
38
45
44
80
79
84
40
43
40
41
42
27
25
24
23
26
19
13
14
16
20
18
15
13
17
19
16
22
DETAIL A
11
9
6
8
11
10
12
12
7
87
31