Briggs and Stratton Auto Choke Problem/Mystery.

[Sabres321]

And I've often wondered why Briggs is so persistent on blocking that cooling air for the engine. Either a governor or now the choke deal. I took that choke deal off my mower with this deal on it. Another solution looking for a problem.

You know.. I may end up doing this in the.

 

[bertsmobile1]

The new series of engines goes 140cc to 190cc
The air vanes do not block te cooling air and push mowers do not run all that hot
It is an engine volume to cylinder surface area thing .

 

[tom3]

Many years ago I cut a hole in a distributor cap to see how the electronic timing advance worked, couldn't picture it but did see how it worked through the hole. Might have to do that someday on an old Briggs. That big old coil with that air vane shaped over and around it seems like it would really block some air. Someday I'll know.