While you wait for answers, we may have found some information which could help you.
Click here for Power Engine ProblemHow to remove a pulley from a 12 hp tecumseh eng?
How can I fix my Troy-bilt 5.5 HP Tecumseh snowblower ?
need parts for Vantage 3.5hp Tecumseh?
Replacement clutch cable fitting - Tecumseh Vantage 35 Tiller?
where can i get parts?
how to fix my Tecumseh 35 Performance power 420 self-propelled?