Here is a collection of small engine repair manuals that I have.
As I do more and more engine work, I refer to these manuals less and less regarding disassembly and reassembly work.
However, these books contain very important information about engine specs like clearances and torque specs.
Carburetor work, carburetor linkage and governor settings are always important and I rely on these books for that information as well.
I also have a lot of PDF files from the internet regarding small engine repair. Most of my Tecumseh engine information is in the form of a PDF file.
I have also included a picture of my Ariens ST724 book. This is service information that I got from the internet. I then printed the information and made my own three ring binder SERVICE MANUAL - complete with a picture of MY snow thrower on the cover.
Briggs and Stratton
Part #270962-1/92
Briggs and Stratton
Part #276781-4/02
Briggs and Stratton
Part #272147-11/93
Briggs and Stratton
Part #272147-2/08
These two Vanguard engine books are the same part # but the second book is more current and includes newer Vanguard engines.
This is an older book that somebody gave to me.
Below I have included a link to a good source of Tecumseh operators manuals.
A Google search for Tecumseh engine repair often returns links to PDF files that can be saved to your computer. I have a number of those PDF files but cannot possibly remember where each of those files came from. Some websites charge money for those PDF files but I think it's worth searching around for the free downloads.