According to sand and sun :
Looking for a repair manual for 6.5hp Tecumseh engine. Googling the web
reveal a lot of repair CDs in the market, are they really good as they
claim or better be be off with the Tecumseh printed manual?, TIA

Most of those repair CDs probably _are_ the official Tecumseh manuals.

Tecumseh publishes them both as CDs/online and paper. I downloaded mine
for about $7.
--
Chris Lewis, Una confibula non set est
It's not just anyone who gets a Starship Cruiser class named after them.