The specifications are subject to alteration for improvement without notice.
Dimensions (mm)
THREE VIEW DRAWING
http://www.os-engines.co.jp
ENGINE EXPLODED VIEW
Type of screw
C...Cap Screw F...Flat Head Screw
ENGINE PARTS LIST
6-15 3-Chome Imagawa Higashisumiyoshi-ku
Osaka 546-0003, Japan
TEL. (06) 6702-0225
FAX. (06) 6704-2722
Cylinder Block
Cylinder Gasket
Piston Ring
Piston
Piston Pin
Piston Pin Retainer
Pilot Shaft
Drive Spacer
Taper Collet
Parallel Key
Ball Bearing (F)
Front Housing
Rotation Sensor
Rotation Sensor Retaining Screw Set (2pcs.)
Ball Bearing (M)
Crankshaft Assembly
Ball Bearing (R)
Rear Housing
Radial Motor Mount
Reed Valve Assembly
Carburetor Gasket Set (3pcs./set)
Carburetor Spacer
Carburetor Complete (HS-324A)
Throttle Lever (No.8)
Ignition Module (IG-10)
Spark Plug CM-6 (Rcexl)
Cap Screw M5x50 (10pcs./set)
Propeller Washer
(Ignition module)
No. Code No.
Description
Displacement
Bore
Stroke
Output
Practical R.P.M.
Weight
(Engine)
SPECIFICATIONS
C
Copyright 2017 by O.S. Engine Mfg. Co., Ltd. All rights reserved. Printed in Japan.
60093430 011800
1
2
3
4
5
6
7
8
8-1
8-2
9
10
11
11-1
12
13
14
15
16
17
18
19
20
28603100
28614000
28603401
28603200
29706000
29717000
28602100
4AB08000
29708100
29708200
29332000
4AB01000
74002A20
74002321
28631000
4AB02000
26730005
4AB01800
4AB28000
4AB18000
4AB15000
4AB21000
4AB81000
4AB81410
74002A10
71669010
79871550
4AB09000
5
C.M4x15
1
2
3
4
6
7
8
9
10
11
12
13
14
16
15
17
19
20
18
C.M5x75
C.M5x20
59.9 cc x 2 / 3.66 cu.in. x 2
44.0 mm / 1.732 in.
39.4 mm / 1.551 in.
10.0 ps / 9.86 hp / 7,000 r.p.m.
1,600-8,000 r.p.m.
2,450 g / 86.42 oz.
150 g / 5.29 oz.
C.M3x8
F.M6x16
8-1
8-2
11-1
CAP SCREW SETS / FLAT HEAD SCREW SET (10pcs./sets)
Code No.
Size
Throttle Valve Lever Retaining Screw (2pcs.)
Cylinder Block Retaining Screw (8pcs.)
Front Housing Retaining Screw (4pcs.)
Caburetor & Reed valve Retaining Screw (2pcs.)
Radial Motor Mount Retaining Screw (4pcs.)
Pcs. used in an engine
79871110
79871415
79871520
79871575
79875616
M3x8
M4x15
M5x20
M5x75
M6x16(F)
80
43
266
293
70
PCD 29
4- 6.3
69
4-M5
139
86 10.5
40
86
40
10.5
48
116
82
135
39
43
101
57
