📘 OS ENGINES manuals • Free online PDFs

OS ENGINES Manuals & User Guides

User manuals, setup guides, troubleshooting help, and repair information for OS ENGINES products.

Tip: include the full model number printed on your OS ENGINES label for the best match.

About OS ENGINES manuals on Manuals.plus

User Manuals, Instructions and Guides for OS ENGINES products.

OS ENGINES manuals

Latest manuals from manuals+ curated for this brand.

OS ENGINES 91HZ-R 3D Helicopter Engine Instruction Manual

May 18, 2024

OS ENGINES 91HZ-R 3D Helicopter Engine It is of vital importance, before attempting to operate your engine, to read the general 'SAFETY INSTRUCTIONS AND WARNINGS' in the following section and…

OS ENGINES Gasoline Aircraft Engine User Manual

July 2, 2021

OS ENGINES Gas0oline Aircraft Engine User Manual It is of vital importance, before attempting to operate your engine, to read the general 'SAFETY INSTRUCTIONS AND WARNINGS' in the following section…

OS Engines GF40 Four-Stroke Gasoline Engine Instruction Manual

Instruction Manual

Comprehensive instruction manual for the OS Engines GF40 four-stroke gasoline engine, covering safety, installation, operation, maintenance, and specifications for model aircraft.

OS ENGINES manuals from online retailers

OS Engines 71615009 Type F Glow Medium Plug User Manual

OSMG2692 • August 10, 2025

Comprehensive user manual for the OS Engines 71615009 Type F Glow Medium Plug, detailing setup, operation, maintenance, and specifications for four-stroke RC engines.

O.S. Engines 24604010 Cylinder Head 46AXII Instruction Manual

OSMG5043 • June 14, 2025

Comprehensive instruction manual for the O.S. Engines 24604010 Cylinder Head 46AXII (Model OSMG5043), covering installation, maintenance, and troubleshooting.