No frills repair with excellent explanations As well as videography. You can tell he is a professional with years of experience because there are no wasted efforts or investigations. Thanks a lot for a great repair! 👍👍👍

Took my mower to a repairman. He told me it had no compression, a stuck valve, and to buy a new mower. Took it home and found this video. Took it apart, found the ring the valve seats against had come loose. Tapped it back in to place and put the mower back together. Started on the first pull. Don't know how long it will last, but for now, you saved me the cost of a new lawnmower! Thank you!

Thanks man. The only video on KZfaq that makes this job easy. Had the exact same valve issue on B&G engine except on the intake side.

Very well explained video. This is a repair that I have not yet had to do on a small engine, but now I have a lot more information when I encounter this problem. Thanks for taking the time to post this. Cheers from Canada.

Great job getting this started. I am impressed. Keep on fixin'

Thanks for the video. I never took engine off the lawnmower before. Same issue here, no compression on my Brggis engine so I took the engine cover off (after watching your video) , upper valve ring popped off from the valve rim which caused valve from going back in. Flush the ring with the valve then gently tap the valve in. Fixed it!

Great video! Simple and to the point instruction

Super chingon trabajo compita felicidades y mil gracias por la ayuda con el vídeo bendiciones y keep doing more videos,ayuda demasiado saludos desde La Luz Michoacán México

Thanks for sharing excellent information Sir! Fix my valves.

got my valve honing done and just got a spring compressor. Its worth it and much less frustrating.

nice video. Good explaination, also about screws (that we forget everytime where the screws have to go :) )

Very good video, informative. Thank you

You got good mechanic fingers

Thanks... mine had no compression also, but one of the valve seats had come loose and was blocking the valve from closing.

Nice job.....easy to watch.....

gr8 repair, I have a 190cc Briggs flat head when it is hot is looses compression and does not start.. I am sure it is not a coil. I suspect a issue with exhaust valve adjustment. this may be exactly what I need thanks

excellent. thank you for sharing this ;)

I would say all the gunk on the motor is causing overheating on that motor. Nice job!👍

Good video

Gottdam that looks worse than what I picked up so far but wow I admire the work dude

nice job!! Question, what was the value lasting number? Also, how much torque was applied to the head bolts? Thanks

Thanks for this - I got my B&G 725EX series fixed up. The intake (bottom valve) wasn't seating. I had to file off almost a full millimeter. The only trouble I ran into was that I didn't have anything to use as a spring compressor. But, I got it put back together. I started with 40psi compression. Finished with 100psi. How long this 'fix' lasts is anybody's guess.

Nice video. I have a similar B&S engine on a Craftsman push mower which is burning oil and smokes out of the muffler. I have already put a new head gasket on and cleaned the valves, though I did not grind the exhaust valve. Compression test showed 60 PSI, but smoke is still coming from the muffler and it is still burning oil. Others have told me the problem is the piston rings most likely, but wouldn't my compression test be lower if the rings were bad? I'm also getting some oil in the air filter. Do you think grinding that exhaust valve might help? Is there something else I'm not thinking of. Sears Parts direct guy said compression test should be between 40 to 60 PSI, so I'm sorta confused. Thanks if you can help.

The drill trick does that have to be in forward or reserve saw it done but never heard what setting it was on

Seems to run ok, will cut grass. Shouldn't the valves be lapped in with valve grinding paste?

Thanks for the info but gotta say getting the springs and keepers back in was a freaking challenge.

I have a similar engine with 63 PSI on compression test. Will hold for at lease 5 miniutes. Is that enough compression to get it to start? Will not start - has spark and I used starting fluid - nothing. I notice it looked like you replaced the coil also. Did you not have spark or was it weak or something. Thanks for any advice.

How did it start with 30 lps of compression? Was your gauge off?

in spite of the new head gasket the compression did not seem to be very high 50? is that because of the compression release system that these small engines have?

I have the same problem, now I have a fix

What was your final compression reading?

So. Is this adjusting the valves...so much different then the OHV?

i think this is probably the problem with mine..it has spark, gas, seems to be water getting intot eh carb for some reason but i emptied the gas tnak washed it and put new fuel in and appears to be same problem..why ? idk...but i didnt know i can take these valves out..i cleaned in there but the vavles ar epretty dirty with carbon ill give it another shot tomorrow i guess.

you didn't grind the valve enough , you need 80 to 100 pounds to work as it should ,,