No4.pdf – O.S. Engines 12XZ Speed Spec III User Manual
Page 4
Copyright 2013 by O.S. Engine Mfg. Co., Ltd. All rights reserved.
60092680 021401
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
Specifications
Displacement
Bore
Stroke
PracticalR.P.M.
Output
Weight
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
S...Set Screw
Type of screw
C...Cap Screw
ENGINE PARTS LIST
The specifications are subject to alteration for improvement without notice.
CARBURETOR PARTS LIST
The specifications are subject to alteration for improvement without notice.
No. Code No.
Description
No. Code No.
Description
79871020
79871050
79871160
M2.6x7
M2.6x15
M3x16
1
2
3
5
4
6
7
9
10
C.M2.6x15
C.M3x16
11
12
C.M2.6x7
8
4-1
4-2
4-3
4-4
6-1
1
2
3
4
4-1
4-2
4-3
4-4
5
6
6-1
7
8
9
10
11
12
21654020
21654120
21531410
21653020
21653010
21656000
21817000
21655000
21682010
21538170
24881824
21630500
21651020
21931100
21652010
21921800
21537000
71642060
21427200
21682950
1
1-1
1-2
2
2-1
3
4
10
5
3-1
3-1
4-1
6
2-2
7-1
7
S.M3x3
9-1
8
9
5-1
2-3
2-4
1
1-1
1-2
2
2-1
2-2
2-3
2-4
3
3-1
4
4-1
5
5-1
6
7
7-1
8
9
9-1
10
21682600
27881820
22781800
21681900
21538900
27881820
21682940
21881950
71533255
22615000
21982620
22781800
21682100
21982900
21682210
21682510
22781800
21982520
23818430
26381501
22615000
2.10 cc (0.128 cu.in.)
13.8 mm (0.543 in.)
14.0 mm (0.551 in.)
5,000-44,000 r.p.m.
1.75 ps / 1.73 hp / 35,000 r.p.m.
225g (7.94 oz.)
26
39
68.7
17.7
34.9
29.5
UNF1/4-28
0.5
11
31.4
4- 3.3
Items marked * are available for only limited time.
(One year after discontinuing the production)
Outer Head
Inner Head
Head Gasket Set (2pcs.)
Built-Up Parts Set
Cylinder & Piston Assembly
Piston Pin
Piston Pin Retainer (2pcs.)
Connecting Rod
Carburetor Complete (Type 12F2-B)
Carburetor Retainer Assembly
"O" Ring
Ball Bearing (F) 12
Crankcase
Ceramic Bearing (R)
Crankshaft
"O" Ring
Cover Plate
Glow Plug RP6
Exhaust Seal Ring (2pcs.)
Dust Cap Set ( 3mm 1pc,16mm 2pcs.)
Mixture Control Valve Assembly
"O" Ring (L) (2pcs.)
"O" Ring (S) (2pcs.)
Needle Valve Assembly
Needle
"O" Ring (2pcs.)
Needle Hoolder
No.14 Universal Nipple Assembly
Carburetor Reducer (5.5mm Red)
"O" Ring (1pc.)
Throttle Stop Screw
"O" Ring (S) (2pcs.)
Carburetor Body (w/Thermo Insulator)
Thermo Insulator
Slide Valve
Metering Needle Assembly
"O" Ring (S) (2pcs.)
Dust Cover
Ball Link No.5
Set Screw
Carburetor Rubber Gasket