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What is the normal compression for a 12 hp Briggs and Stratton engine?

I need to lean more about Briggs and Stratton engines.

asked by Snow4Life (24)

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answers

The Briggs and Stratton website has a lot of tech info on what is recommended and stock settings, etc. You could check it out to get more info.

8 votes

You can expect a normal operating pressure of 10 PSI (pounds per square inch) per unit of horsepower. So aprox 120 PSI.

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posted by mb (5457)
7 votes

I have a 7HP Briggs engine and it gives a compression of 90 pounds. This is barely enough. My friend told me it needs to be higher. Your engine has 12 HP so you can do the math!

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posted by icyblue (235)
7 votes

The proper way to check for compression is with a leak down test. But this requires special stuff and equipment. How much compression are you getting and how did you check your 12 hp Briggs and Stratton engine?

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posted by theblip (294)
  • Get your valves checked - it's easier than actually checking the compression. If it's dirty or clogged clean them and see if the engine works better. May save you some time.
    posted by addicted (186)
6 votes

If you want to learn more about your Briggs and Stratton engine you might try checking your user manual or their website. Try their FAQ section.

4 votes

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