60092970 121403
http://www.os-engines.co.jp
6-15 3-Chome Imagawa Higashisumiyoshi-ku
Osaka 546-0003, Japan TEL. (06)6702-0225
FAX. (06)6704-2722
Dimensions (mm)
THREE VIEW DRAWING
79871020
79871055
79871180
M2.6x7
M2.6x18
M3x18
CAP SCREW SETS (10pcs./set)
Code No.
Size
Pcs. used in an engine
Cylinder Head Retaining Screw (4pcs.)
Cover Plate Retaining Screw (4pcs.)
Carburetor Retainer Retaining Screw (1pc.)
ENGINE EXPLODED VIEW
CARBURETOR EXPLODED VIEW
Type of screw
C...Cap Screw S...Set Screw
Type of screw
C...Cap Screw
ENGINE PARTS LIST
CARBURETOR PARTS LIST
The specifications are subject to alteration for improvement without notice.
* marked parts are available only for limited period
(one year after finishing the production).
No. Code No.
Description
Outer Head
Inner Head
Head Gasket Set (0.1mm / 0.15mm)
Built-Up Parts Set
Cylinder & Piston Assembly
Piston Pin
O.S. SPEED Piston Pin Retainer 4mm (6pcs.)
Connecting Rod
Carburetor Complete (Type 21M2(B))
Carburetor Retainer Assembly
"O" Ring (2pcs.)
Crankshaft Ball Bearing (Front)
Crankcase
Crankshaft Ball Bearing (Rear)
Crankshaft
Cover Gasket
Cover Plate
Glow Plug RP7
Exhaust Seal Ring (2pcs.)
O.S. SPEED Flywheel Collet (2pcs.)
O.S. SPEED Dust Cap Set For 12-30 Class
1
2
3
4
4-1
4-2
4-3
4-4
5
6
6-1
7
8
9
10
11
12
2A004000
2A004100
2A004160
2A003010
2A003000
22016000
21817010
23755020
2A081001
23981740
24881824
23731000
2A001000
23730020
2A002000
23107100
2A007000
71642070
22826140
71801110
22884254
3mm (2pcs.)/16mm (2pcs.)/18mm (1pc)
1
1-1
1-2
2
2-1
3
3-1
4
4-1
5
5-1
6
7
8
8-1
9
10
10-1
11
22082600
46066319
22781800
22082970
46066319
22082940
22082950
22848160
27881820
71533085
22615000
22082110
22082200
2A081610
27881820
23981520
23781400
26381501
29015019
Mixture Control Valve Assembly
"O" Ring (L) (2pcs.)
"O" Ring (S) (2pcs.)
Needle Assembly
"O" Ring (2pcs.)
Needle Holder Assembly
No.15 Universal Nipple Assembly
Throttle Stop Screw
"O" Ring (S) (2pcs.)
Carburetor Reducer (8.5mm Red)
"O" Ring (1pc.)
Carburetor Body
Slide Valve
Metering Needle Assembly
"O" Ring (S) (2pcs.)
Dust Cover
Ball Link No.3
Set Screw (1pc.)
Carburetor Rubber Gasket
No. Code No.
Description
* marked parts are available only for limited period
(one year after finishing the production).
1
1-1
1-2
2
2-1
3
4
5
7
3-1
11
5-1
4-1
6
5-1
S.M3x3
8
9
10
8-1
10-1
1
2
3
4-4
4-1
4-2
4-3
6
7
8
10
9
C.M2.6x18
11
C.M3x18
6-1
4
5
C.M2.6x7
12
3.49 cc / 0.213 cu.in.
16.08mm / 0.633 in.
17.20mm / 0.677 in.
2.8 ps / 2.76 hp / 33,000 r.p.m.
4,000-45,000 r.p.m.
340g / 11.99 oz.
45
31.6
UNF1/4-28
20.5
29.5
44
78.6
28
15.6
37
21
4- 3.3
Displacement
Bore
Stroke
Output
Practical R.P.M.
Weight
(Engine)
SPECIFICATIONS
Copyright 2013 by O.S. Engine Mfg. Co., Ltd. All rights reserved. Printed in JAPAN.
