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Below is an exploded view of the YS 120-NC Engine
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Futaba YS120NCEX

Table

# CH Part # Description QTY Price
1 YS2152 Crankcase 1
 128.50
2 YS0505 Valve Cover 1
 14.75  
3 YS0510 Valve Cover Gasket (available in set, YS2280) 1  
4 YS0515 Valve Cover Screws 2
 1.50    
5 YS0520 Head Gasket 1
 2.50    
6 YS2305 Cylinder Head 1
 67.95  
7 YS2160 Intake Valve 1
 21.50  
8 YS2165 Exhaust Valve 1
 26.00  
9 YS2170 Valve Spring Set 2
 7.25    
10 YS2175 Spring Retainer Set 2
 7.25    
11 YS2180 Spring Retainer Clip 4
 7.25    
12 YS0555 Rocker Arm Set 2
 30.95  
13 YS0560 Tappet Adjusting Screw Set 2
 6.25    
14 YS0565 Tappet Lock Nut 2
 3.10    
15 YS0570 Rocker Arm Shaft 1
 5.50    
16 YS0575 Rocker Arm Shaft Screw 1
 1.50    
17 YS0580 E-Ring Set 2
 2.50    
18 YS0585 Head Screws 5
 4.75    
19 YS2310 Crankshaft 1
 69.95  
20 YS0595 Cylinder Liner 1
 43.25  
21 YS2195 Piston 1
 43.25  
22 YS0605 Wrist Pin 1

 8.50    

23 YS0610 Wrist Pin Retainer 2
 3.10    
24 YS0615 Piston Ring 1
 18.50  
25 YS0620 Connecting Rod 1
 30.75  
26 YS2205 Back Plate 1
 43.25  
27 YS2210 Disc Valve 1

DISCONTINUED
29 YS2220 Rear Disc Valve Retainer 1

DISCONTINUED
30 YS2225 Retainer Screw 1

DISCONTINUED
31 YS0645 Back Plate Gasket (available in set, YS2280)  
32 YS0650 Back Plate Screws 6
 4.75    
33 YS2230 Cam Gear Cover 1
 5.10    
34 YS0660 Cam Gear Cover O-Ring (available in set, YS2285) 1  
35 YS2235 Cam Gear Cover Screws 2
 4.25    
36 YS0670 Cam Gear 1
 46.25  
37 YS0675 Cam Followers 2
 12.25  
38 YS0680 Push Rods 2
 13.95  
39 YS0685 Push Rod Covers 2
 7.75    
40 YS0690 Push Rod Cover O-Ring (available in set, YS2285) 4  
41 YS0695 Front Bearing 1
 12.25  
42 YS2240 Front Bearing Oil Seal 1
 8.75    
43 YS0701 Rear Bearing 1
18.75   
44 YS0705 Cam Gear Bearing 2
12.95     
45 YS0710 Fuel Nipples 4
 9.25    
46 YS0715 Regulator Body 1
 33.95  
47 YS0195 Regulator Adjusting Screw 1
 3.25    
48 YS0725 Regulator Adjusting Screw O-Ring (available in set, YS2285) 1  
49 YS0730 Diaphragm 1
 3.10    
50 YS0176 Regulator Plunger 1

 3.10    

51 YS0180 Plunger Spring 1
 1.50    
52 YS0745 Regulator Gasket (available in set,YS2280) 1  
53 YS0750 Regulator Screws 2
 1.50    
54 YS2315 Carburetor Body 1  
 35.95  
55 YS2320 Throttle Barrel 1
 26.95  
56 YS0765

Needle Valve          Available in Assembly Only

 1 See Needle Valve Assembly Below
57 YS0770

Needle Socket     Available in Assembly Only

 1 See Needle Valve Assembly Below
58 YS0775 Needle Socket O-Ring     3
3.10     
59 YS0385 Needle Valve Detent 1 DISCONTINUED
60 YS0380 Throttle Barrel Retainer Screw 2
2.50     
61 YS0785 Throttle Stop Screw 1
 1.50    
62 YS0790 Throttle Stop Spring 1
 1.50    
63 YS0200 Throttle Arm 2
 5.50    
64 YS2260 Carburetor Gasket (available in set, YS2280) 1  
65 YS2265 Drive Washer 1
 17.25  
66 YS0820 Crankshaft Key 1
 3.10    
67 YS1220 Drive Washer Spacer 1
 3.10    
68 YS0835 Intake Pipe 1
 12.25  
69 YS0840 Intake Pipe O-Ring (available in set, YS2285) 4  
70 YS1540 Wrist Pin Access Plug 1  
 4.75    
71 YS0830 Propeller Nut Set 2
7.75     
72 YS2270 Propeller Washer 1
 2.25    
73 YS2275 Regulator Ballast    NO LONGER AVAILABLE 1  
74 YS2325

Muffler Discontinued --- Replaced by #YSE4930 Muffler

Also See Note below

 1

 36.25  

  *NOTE:

YSE4925

Muffler & Exhaust Pipe are also available

as a set of Muffler, Pipe, & Lock Nuts

 set

44.95

 
 
75 YS0850 Discontinued, Use #76 Below or see Note above    
76 YSE4345 Exhaust Pipe, replacing obsolete pipe 1
 16.95    
  YS2280 Gasket Set 1
10.00   
  YS2285 O-Ring Set 1
 17.25  
  YS2345 Carburetor Assembly 1
 93.95  
  YS0875 See Needle Valve Assembly Below 1  
  YS2295 Back Plate Assembly 1
 73.50  
  YS2300 Cylinder Head Assembly 1

$129.95
 
  YS2350 DISCONTINUED   See Muffler Assembly Note Above   See Muffler Assembly Note Above
  YSE2740 Needle Valve Assembly 1

28.95
 



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