2 thoughts on “Compression Test On 12HP Briggs & Stratton IC Engine

  1. I dont think he does, I read the 12 hp B&S engine  has a compression release , it says to over come that in what i read , you need to jump  it from a car battery to get the engine to turn 325 rmps to where you can read the compression. I think the reading you are getting is after release. Also a better way to do that is to use the quick release on your gage bottom and remove the gage and screw in your hose, then connect the gage.

Leave a Reply

Your email address will not be published. Required fields are marked *