.30
My book for my John Deere snowblower , which has a 5 horsepower Tecumseh engine , shows to use the Champion RJ17LM spark plug
If that is a 5 horsepower Tecumseh engine - ( .030 inch )
Use this link-http://manddsmallengine.com/tecumseh/info/plug2.html
what is correct spark plug gap for aeriens 624E snowblower
.030
The spark will depend upon the type of engine being used, either 2 cycle or 4 cycle. If it is a 4 cycle, chances are the engine was produced by either Tecumseh or Briggs.
According to my owners manuel the spark plug gap is 30
Tecumseh website, "All spark plugs air gap is .030."
Tecumseh Part #611049 - Champion Spark Plug #RCJ8Y
Rape will happen.
Set the spark plug gap to .030"(.762mm).
The plug gap for a 5.5 hp Tecumseh is .030 in.