YS Engine Parts : YS 120-AC

Central Hobbies
1401 Central Avenue
Billings, MT 59102

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Exploded View of the YS 120-AC engine:

Chart#: 0 Part#: YSE2715
Description: Replacement Prop Drive Washer. Replaces old part YSE0815. Must be used with YSE2720 retainer
Pkg Qty: 1 Price: $24.15

Chart#: 0 Part#: YSE1485
Description: Air Chamber Gasket (not included in gasket set!) DISCONTINUED
Pkg Qty: 1 Price: $0.00

Chart#: 0 Part#: YSE1550
Description: Carburetor Assembly
Pkg Qty: 1 Price: $149.75

Chart#: 0 Part#: YSE0900
Description: Gasket Set
Pkg Qty: 1 Price: $17.55

Chart#: 0 Part#: YSE0905
Description: O-Ring Set
Pkg Qty: 1 Price: $19.95

Chart#: 0 Part#: YSE2720
Description: Drive Washer Retainer for use with YSE2715 Prop Drive Washer only
Pkg Qty: 1 Price: $6.55

Chart#: 0 Part#: YSE0405
Description: Check Valve
Pkg Qty: 1 Price: $10.95

Chart#: 0 Part#: YSE0860
Description: Rocker Arm Assembly w/ adjusters
Pkg Qty: 2 Price: $58.25

Chart#: 0 Part#: YSE4925
Description: New style Muffler, Exhaust Pipe and Lock Nut set
Pkg Qty: 1 Price: $54.95

Chart#: 1 Part#: YSE1400
Description: Crankcase DISCONTINUED
Pkg Qty: 1 Price: $144.95

Chart#: 2 Part#: YSE0505
Description: Valve Cover
Pkg Qty: 1 Price: $19.75

Chart#: 3 Part#: YSE0510
Description: Valve Cover Gasket (Also included in gasket set)
Pkg Qty: 1 Price: $3.50

Chart#: 4 Part#: YSE0515
Description: Valve Cover Screws
Pkg Qty: 2 Price: $3.50

Chart#: 5 Part#: YSE0520
Description: Head Gasket
Pkg Qty: 1 Price: $3.50

Chart#: 6 Part#: YSE2300
Description: YS 120SC/FZ Cylinder Head Assembly - Discontinued No Longer Available
Pkg Qty: 1 Price: $0.00

Chart#: 9 Part#: YSE0540
Description: Valve Spring Set
Pkg Qty: 2 Price: $8.75

Chart#: 10 Part#: YSE0545
Description: Spring Retainer Set
Pkg Qty: 2 Price: $7.95

Chart#: 11 Part#: YSE0550
Description: C-Rings DISCONTINUED
Pkg Qty: 2 Price: $0.00

Chart#: 12 Part#: YSE0555
Description: Rocker Arm Set
Pkg Qty: 2 Price: $43.95

Chart#: 13 Part#: YSE0560
Description: Tappet Adjusting Screw Set
Pkg Qty: 2 Price: $7.70

Chart#: 14 Part#: YSE0565
Description: Valve Adjuster Lock Nut Set
Pkg Qty: 2 Price: $4.35

Chart#: 15 Part#: YSE0570
Description: Rocker Arm Shaft
Pkg Qty: 1 Price: $7.65

Chart#: 16 Part#: YSE0575
Description: Rocker Arm Shaft Screw
Pkg Qty: 1 Price: $1.50

Chart#: 17 Part#: YSE0580
Description: E-Ring Set
Pkg Qty: 2 Price: $3.85

Chart#: 18 Part#: YSE0585
Description: Head Screws
Pkg Qty: 5 Price: $5.95

Chart#: 19 Part#: YSE1420
Description: YS120AC Crankshaft
Pkg Qty: 1 Price: $87.18

Chart#: 20 Part#: YSE0595
Description: Cylinder Liner
Pkg Qty: 1 Price: $65.95

Chart#: 21 Part#: YSE0600
Description: Piston
Pkg Qty: 1 Price: $60.45

Chart#: 22 Part#: YSE0605
Description: Wrist Pin
Pkg Qty: 1 Price: $9.95

Chart#: 23 Part#: YSE0610
Description: Wrist Pin Retainer
Pkg Qty: 2 Price: $7.95

Chart#: 24 Part#: YSE0615
Description: Piston Ring
Pkg Qty: 1 Price: $24.15

Chart#: 25 Part#: YSE0620
Description: Connecting Rod
Pkg Qty: 1 Price: $30.75

Chart#: 26 Part#: YSE1440
Description: Back Plate Assembly Set DISCONTINUED
Pkg Qty: 1 Price: $0.00

Chart#: 31 Part#: YSE0650
Description: Back Plate Screws
Pkg Qty: 6 Price: $5.95

Chart#: 32 Part#: YSE0655
Description: Cam Gear Cover
Pkg Qty: 1 Price: $6.55

Chart#: 32 Part#: YSE2230
Description: Cam Gear Cover
Pkg Qty: 1 Price: $7.65

Chart#: 33 Part#: YSE0660
Description: Cam Gear Cover O-Ring
Pkg Qty: 1 Price: $2.50

Chart#: 34 Part#: YSE0665
Description: Cover Screw Set
Pkg Qty: 2 Price: $2.75

Chart#: 35 Part#: YSE0670
Description: Cam Gear
Pkg Qty: 1 Price: $54.95

Chart#: 36 Part#: YSE0675
Description: Cam Followers
Pkg Qty: 2 Price: $16.45

Chart#: 37 Part#: YSE0680
Description: Push Rods (2 per package)
Pkg Qty: 2 Price: $17.55

Chart#: 38 Part#: YSE0685
Description: Push Rod Covers
Pkg Qty: 2 Price: $10.95

Chart#: 39 Part#: YSE0690
Description: Pushrod Cover O-Ring, Available in O-Ring set above
Pkg Qty: 0 Price: $0.00

Chart#: 40 Part#: YSE0695
Description: Front Bearing
Pkg Qty: 1 Price: $20.85

Chart#: 41 Part#: YSE0701
Description: Rear Bearing
Pkg Qty: 1 Price: $28.95

Chart#: 42 Part#: YSE0705
Description: Cam Gear Bearings
Pkg Qty: 2 Price: $18.65

Chart#: 43 Part#: YSE0710
Description: Fuel Nipples
Pkg Qty: 4 Price: $9.95

Chart#: 44 Part#: YSE0715
Description: Regulator Body
Pkg Qty: 1 Price: $39.95

Chart#: 45 Part#: YSE0195
Description: Regulator Adjusting Screw
Pkg Qty: 1 Price: $3.95

Chart#: 46 Part#: YSE0725
Description: Regulator Adjusting Screw O-Ring
Pkg Qty: 1 Price: $2.15

Chart#: 47 Part#: YSE0730
Description: Diaphram
Pkg Qty: 1 Price: $3.85

Chart#: 48 Part#: YSE0176
Description: Plunger
Pkg Qty: 1 Price: $3.85

Chart#: 49 Part#: YSE0180
Description: Plunger Spring
Pkg Qty: 1 Price: $3.85

Chart#: 50 Part#: YSE0745
Description: Regulator Gasket for all YS 120's, FZ140, and FZ110 made after March of 2006
Pkg Qty: 1 Price: $3.85

Chart#: 51 Part#: YSE0750
Description: Regulator Screws
Pkg Qty: 2 Price: $4.95

Chart#: 53 Part#: YSE1460
Description: Throttle Barrel - DISCONTINUED No Longer Available
Pkg Qty: 1 Price: $0.00

Chart#: 54 Part#: YSE2740
Description: Needle Valve Assembly-Replaces older needle valve and seat in all 120's and 91's
Pkg Qty: 1 Price: $37.35

Chart#: 56 Part#: YSE0775
Description: Needle Valve Socket O-Rings
Pkg Qty: 1 Price: $3.85

Chart#: 57 Part#: YSE0385
Description: Needle Valve Spring Detent DISCONTINUED
Pkg Qty: 1 Price: $0.00

Chart#: 58 Part#: YSE0785
Description: Throttle Stop Screw
Pkg Qty: 1 Price: $3.25

Chart#: 59 Part#: YSE0790
Description: Throttle Stop Spring
Pkg Qty: 1 Price: $2.95

Chart#: 60 Part#: YSE0200
Description: Throttle Arm
Pkg Qty: 1 Price: $7.65

Chart#: 64 Part#: YSE0815
Description: Discontinued - can be replaced by YSE2715
Pkg Qty: 1 Price: $0.00

Chart#: 66 Part#: YSE0825
Description: Propeller Washer
Pkg Qty: 1 Price: $5.25

Chart#: 67 Part#: YSE6145
Description: Propeller Nut Set, replaces YSE0830
Pkg Qty: 2 Price: $13.15

Chart#: 68 Part#: YSE0895
Description: Exhaust Pipe Assembly - DISCONTINUED
Pkg Qty: 1 Price: $24.15

Chart#: 69 Part#: YSE0840
Description: Air Chamber/Inlet Pipe O-Rings. DISCONTINUED
Pkg Qty: 4 Price: $6.55

Chart#: 70 Part#: YSE1470
Description: Crankshaft Rings
Pkg Qty: 2 Price: $44.95

Chart#: 71 Part#: YSENLA
Description: YS ENGINE PART NO LONGER AVAILABLE
Pkg Qty: 1 Price: $0.00

Chart#: 72 Part#: YSE1490
Description: Air Chamber Bracket
Pkg Qty: 1 Price: $4.75

Chart#: 73 Part#: YSE1500
Description: Bracket Screws
Pkg Qty: 2 Price: $4.75

Chart#: 74 Part#: YSE1510
Description: Air Chamber Fuel Nipple
Pkg Qty: 1 Price: $3.10

Chart#: 75 Part#: YSE1520
Description: Check Valve Bracket DISCONTINUED
Pkg Qty: 1 Price: $6.25

Chart#: 77 Part#: YSE1540
Description: Wrist Pin Access Plug DISCONTINUED
Pkg Qty: 1 Price: $6.55

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