O.S. MAX-12XZ Engine User Manual

This manual introduces the use, safety operation, maintenance and other information of O.S. engines.


O.S. MAX-12XZ Engine User Manual - cover page
Brand
O.S. Engines
Category
Other
Document type
User Manual
Language
English
Pages
20
File format
PDF
File size
1.8 MB
Published
08 August, 2012
Updated
30 September, 2023
Model
MAX-12
MD5 checksum
26C5E7C4B251F9EBAE1FB1FB6B89BE4E

About this manual

This document is the official user manual for the O.S. MAX-12XZ model engine. It begins with critical safety warnings regarding fuel toxicity, flammability, and carbon monoxide exhaust, advising operation only in open areas. The guide details the engine's construction, specifically noting improvements over the Speed 12XZ for increased torque, and lists standard accessories including the RP6 glow plug and carburetor reducer.

What's inside

  • SAFETY INSTRUCTIONS AND WARNINGS
  • ENGINE CONSTRUCTION
  • NOTES WHEN APPLYING AN ELECTRIC STARTER
  • TOOLS, ACCESSORIES, etc.
  • INSTALLATION OF THE STANDARD ACCESSORIES
  • STARTING THE ENGINE & RUNNING-IN
  • CARE AND MAINTENANCE
  • TROUBLE SHOOTING
  • ENGINE EXPLODED VIEW &PARTS LIST

Specifications

Intended Usemodel cars
Fuel Nitromethane Content10-30%
Recommended Fuel Nitromethane Content20%
Glow Plug TypeRP6 T-type head
Carburetor Type12F
Head Gasket Thicknesses0.1mm and 0.2mm

Frequently asked questions

What type of fuel is recommended for the O.S. MAX-12XZ?

The manual suggests a fuel containing 10-30% nitromethane, with 20% recommended as a starting point.

Where should the engine be operated?

The engine must be run only in an open area because it exhausts deadly carbon monoxide.

What safety gear is recommended?

The wearing of safety glasses is strongly recommended, and users should not touch the engine until it has cooled.

What happens if the engine is over-primed before starting?

Over-priming can cause a hydraulic lock and damage the engine; the glowplug should be removed and the starter used to pump out surplus fuel.

Download PDF (1.8 MB)

More O.S. Engines Manuals


View all O.S. Engines manuals →