This is an operation manual for OS OHV 1/8 Off-Road Truck engine
This manual provides instructions for the O.S. MAX-28XZ, a high-performance .28 cu.in. engine expressly designed for 1/8 scale radio-controlled truck (Truggy) racing. It features a large size outer head and T-type plug design, along with a new 21J carburetor supplied with 8mm and 9mm reducers. The document covers safety warnings, engine construction details, and specific notes for using an electric starter.
| Displacement | .28 cu.in. |
|---|---|
| Scale Application | 1/8 scale |
| Carburetor Type | 21J |
No guarantee is offered against material wear or damage resulting from actual use due to the high stresses of racing and powerful fuels.
Remove the glowplug, close the needle-valve, and apply the starter to pump out surplus fuel while covering the head with a rag.