O.S. SPEED 21XZ-B TY110% Engine Exploded View & Parts List - Carburetor Exploded View & Parts List

Oct 29, 2026

Upload by Mia

O.S. SPEED 21XZ-B TY110% engine exploded views provide detailed part identification and assembly references for the complete engine and the carburetor. Tables list screw types, sizes, code numbers, descriptions, and quantities used in an engine, including heads, gaskets, pistons, bearings, crankshaft, and carburetor components. The document also specifies limited-edition special parts, explaining that special assembled components are not available as spare parts and advising use of standard parts for replacements.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages1

Reading Time3 min

AccessFree to download

Engine Exploded View & Parts List

Screw Types and Sizes

Engine Parts Table

Carburetor Exploded View & Parts List

Carburetor Parts Table

Limited Edition Special Parts

O.S.SPEED 21XZ-B TY110% ENGINE EXPLODED VIEW & PARTS LIST Type of screw C...Cap Screw C. M3x18 ~~ ~~ ~~ ~~ 1 ~~ ~~ 2 3 ~~ ~~ 4 4-3 4-2 4-1 4-4 5 10 C.M2.6x7 11 12 CAP SCREW SETS (10pcs./set) | Code No. | Size | Pcs. used in an engine | | --- | --- | --- | | 79871020 | M2.6x7 | Cover Plate Retaining Screw (4pcs.) | | 79871055 | M2.6x18 | Carburetor Retainer Retaining Screw (1pc.) | | 79871180 | M3x18 | Cylinder Head Retaining Screw (4pcs.) | CARBURETOR EXPLODED VIEW & PARTS LIST Type of screw 1 C...Cap Screw S...Set Screw 1-1 2 S.M3x3 5-1 3 3-1 6-1 7-1 4 5 6 7 9 8-2 8-19-1 10 8 | No. | Code No. | Description | | --- | --- | --- | | 1 | 2A204000 | Outer Head | | 2 | 22424104 | Inner Head | | 3 | 22014162 | Head Gasket Set (0 . 1mm,0 .2mm) | | 4 | 22423110 | Built-up Parts Set | | 4-1 | 22423100 | Cylinder & Piston Assembly | | 4-2 | 22016000 | Piston Pin | | 4-3 | 21817010 | Piston Pin Retainer 4mm (6pcs.) | | 4-4 | 22425003 | Connecting Rod w/piston pin retainers (3pcs.) | | 5 | 2AN81002 | Carburetor Complete (Type 21J3(B)) | | 6 | 23981740 | Carburetor Retainer Assembly | | 6-1 | 24881824 | "O" Ring (2pcs.) | | 7 | 23731020 | Crankshaft Ball Bearing (Front) | | 8 | 22421050 | Crankcase | | 9 | 23730050 | Ceramic Ball Bearing (Rear) | | 10 | 22422030 | Crankshaft | | 11 | 23107100 | Cover Gasket | | 12 | 22427100 | Cover Plate | | | 71641300 | Glow Plug P3 | | | 22826145 | Exhaust Seal Ring 21 (10pcs.) | | | 71533270 | Carburetor Reducer 7mm (RED) w/ "O" Ring (2pcs.) | | | 22615000 | "O" Ring (1pc.) | | | 22884254 | Dust Cap Set 12-30 (3mmx2,16mmx2,18mmx1) | This engine is the limited edition. All the special parts assembled in the engine are not available as spare parts. Use standard parts when you replace them. The following are special parts for the limited edition. Outer head with special engraving Crankshaft with special engraving 7mm carburetor restrictor Crankcase with special engraving | No. | Code No. | Description | | --- | --- | --- | | 1 | 23781400 | Ball Link No.3 | | 1-1 | 26381501 | Retaining Screw | | 2 | 23981520 | Dust Cover | | 3 | 23818340 | Metering Needle Assembly | | 3-1 | 27881820 | "O" Ring (2pcs.) | | 4 | 22848210 | Slide Valve | | 5 | 23618197 | Needle Assembly | | 5-1 | 46066319 | "O" Ring (2pcs.) | | 6 | 22082940 | Needle Holder Assembly | | 6-1 | 22082950 | Fuel Inlet (No. 15) | | 7 | 22848160 | Throttle Stop Screw | | 7-1 | 27881820 | "O" Ring (2pcs.) | | 8 | 22082600 | Mixture Control Valve Assembly | | 8-1 | 46066319 | "O" Ring (L) (2pcs.) | | 8-2 | 22781800 | "O" Ring (S) (2pcs.) | | 9 | 2AN81100 | Carburetor Body 21J3(B) (w/Thermo Insulator) | | 9-1 | 2AN81101 | Thermo Insulator | | 10 | 29015019 | Carburetor Rubber Gasket | THREE VIEW DRAWING Dimensions (mm) SPECIFICATIONS | Displacement
Bore
Stroke
Output
Practical R. P. M.
Weight | 3.49 [cc / 0.213 cu.in](cc / 0.213 cu.in).
16.27 mm / 0 .641 in.
16.8 mm / 0.661 in.
2.65 ps / 2.61 hp / 34,000 r.p.m. 4,000-42,000 r.p.m.
353 g / 12.45 oz. (Engine) | | --- | --- | 6-15 3-Chome Imagawa Higashisumiyoshi-ku Osaka 546-0003, Japan [http://www.os-engines.co.jp](http://www.os-engines.co.jp) TEL. (06)6702-0225 FAX. (06)6704-2722 The specifications are subject to alteration for improvement without notice. C Copyright 2017 by O.S. Engines Mfg. Co. , Ltd. All rights reserved. Printed in Japan. 60093350 021902

FAQs

What information is included in the engine exploded view and parts list?

It includes screw types and sizes, part code numbers, descriptions, and quantities used in the engine, covering components such as heads, gaskets, pistons, bearings, crankshaft, and covers.

What information is included in the carburetor exploded view and parts list?

It lists carburetor-related subassemblies and components with code numbers and descriptions, including the carburetor body, insulators, rings, valves, bearings, and gaskets.

Are limited-edition special parts available as spare parts?

No. The document states that special parts assembled in the limited edition are not available as spare parts, and standard parts should be used when replacements are needed.

Oct 29, 2026

Upload by Mia