Rotax four stroke aircraft engines have proven themselves as reliable engines. They can be bought as experimental (UL) or certified (A and F) engine and there are three main models to date. The original engine is the 80 hp 912, from which the 100 hp 912S was developed and Rotax also has a 115 hp turbocharged 914 engine.
The purpose of the operators manual is to familiarize the owner/user of an aircraft engine with basic operating instructions and safety information.
Excerpt from the document:
This manual contains all operating instructions for standard and abnormal conditions of this engine. Performance data is also included as are limitations of the engine and its weights.
To continue reading see the pdf below: