While you wait for answers, we may have found some information which could help you.
Click here for Valve Tecumseh Engine
My Tecumseh BVS 143 Engine is spluttering and cutting out?
How can I get my spectra 40 Tecumseh to run?
Replacement clutch cable fitting - Tecumseh Vantage 35 Tiller?
Engine manual required?
Tecumseh vantage 35 push lawnmower cuts out?
how can a fix a vantage 35 tecumseh?