Oh my gosh, it runs and runs well! I could never do that. Even though I do understand motors pretty well from an old lady standpoint, that was too intricate for me. Great job!

Yep been there,done that. I got involved with Briggs and Stratton engines and the Johnson Iron Horse engines back in the 70s. What you just did my friend, brought a whole lot of memories back. 👍

should have shown how to adjust those valves, even though they may not have needed adjusting.

I use a drill and spin it backward to get a reliable reading. otherwise the compression release kicks in

He's clearly knowledgeable and does an excellent job diagnosing and solving the problems.  But in order to make his videos better.He really needs to clean the machine off so that you can see what He is doing and also he needs to show what is that instead of simply showing you the result.  So he can go from producing an average video to an excellent video with just a few changes.  Anyway thanks for the video and the explanations along with the excellent diagnosis.

Great video and very informative!!!

Great video thanks

I've found those often get the decompression device on the camshaft, stuck in either position, usually from lack of oil changes, but it will cause the exhaust valve to not close completely. I always make sure I buy a Briggs and Stratton engine with the cast iron bore, "IC" has that, or you might as well throw them out as soon as the rings and cylinder are worn.

I noticed the air vane was looped inside of the auto choke thermostat. (triangle).  The leading edge of the thermostat  should touch the air vane on the outside.  Thanks for the video.

I kind of liked that guy, he reminds of myself, good job buddy

I have one of those engines and it has 95 PSI compression

Hammer and shock exhaust bolts helps

The exhaust valve is AllWAYS smaller than intake valve 😊😊

For me so far the best video out there on this period I have the exact same engine on a trash picked mower I'm going down the rabbit hole with. Especially helpful were the quick checks on piston Where valve seating and thermostatic choke mechanism. Also much appreciated the no intro or acting BS so tiresome on other videos. Plus how crusty that unit was and you just got after it without a lot of fool and around. Many thanks. Yes for me that valve Spring compression tool is a bit pricey but there are no alternatives that I can find. Also for me I think I would follow a star pattern in taking off the head bolts. Again many thanks good job.

gr8 vid,  I have a 190cc briggs flat head I believe has a similar issue with valves,  when its hot it looses compression. I am thinking the exhaust valve needs adjustment

I bet the crankshaft is bent, too

It’s smart to retorque head bolts every year

I have the same model and did the same job this afternoon. Lower head bolts were not fully tight and the oily residue told me the gasket was toast. Valves were ok, though. The heads are cast so rough it makes sense to spend five minutes lapping the gasket surface flat with a sheet of 80grit sandpaper on a  glass or cast iron table. Gaskets hold up much longer between two flat planes.

Where can i buy the valve compression tools? Can you put the link where i can order this tools plz...and thx for the vids.

I've got two self-propelled mowers one 190cc Toro an one 140cc Murray both have Briggs & Straight engines and the pull rope is stiff as a board I've broken the small white pieces that turn the fly wheel on one twice and the other one I didn't put so hard but no luck  both won't start I've checked the kill cable it seem to be ok ... there a Easy Start my ace..