This document is an engine instruction manual that emphasizes the importance of safety instructions and warnings, as well as providing detailed information on engine controls and other features. Users are reminded to keep the manual in a safe place for easy reference. It is also recommended to check the instructions supplied with the vehicle, radio control equipment, etc.
This manual provides comprehensive instructions for the O.S. FS-26S-C Ver.II, an overhead valve four-stroke engine designed specifically for 1/10 class radio-controlled vehicles. It details the installation of standard accessories, including the Type 20P carburetor and Super Air Cleaner 102S, and outlines procedures for starting the engine and performing the initial running-in process.
| Engine Cycle | four stroke cycle |
|---|---|
| Intended Use | 1/10 class R/C vehicles |
| Carburetor Type | Type 20P |
| Carburetor Bore | 5mm |
| Air Cleaner Type | Super Air Cleaner 102S |
| Glowplug Type | Type F |
The engine is designed expressly for 1/10 class R/C vehicles and should not be used for any other purpose.
The engine is supplied with an O.S. Type F glowplug, which is specially designed for O.S. four-stroke engines.
After pressing the carburetor into the exhaust manifold, fasten the lock nut 60-90 degrees further; do not fasten any further to avoid distortion.
We recommend a fuel containing 20% nitromethane as a starting point, though commercially available two-stroke fuel with 10-30% nitromethane is suggested.