All the plugs should be in motor except the one you are testing and for Tru compression it's only 3bumps on the gage

Get that motor out brother and take it for a rip love your content love your attitude your honesty and your infectious to watch

Hay fella, just wanted to say thanks I’ve had an issue with my 4 stroke Suzuki 60df 0psi compression on cylinder 4 didn’t have any sea foam as not widely available in UK so tried AC90 pumped half a can in there left it over night and bingo now getting 150psi cheers again

Sticky rings or sticky reeds sea foam is good stuff it's amazing what that stuff will do I use it in everything I use love the stuff 👍

Love your hot water heater as well...great video. Thank you.

Dude .. love your vids . I’m deep into boats as well .. drank my first cup of coffee and enjoyed this video .. thank you

Licking some spark! Saw that hop!

I'm trying this on a boat that has been sitting up for six years. It was suggested that I use this product but that I should take it slow. Spray 2 applications wait 24 to 48 hours, spin prop while in gear then do a compression check. Hope it gives me good results on my Evinrude 115.

I had an old 3 cylinder 60 hp outboard that had 90 psi on all the cylinders after sitting for a few years. motor started and ran still Ran some sea foam in the gas tank and compression came back to 130 psi in all 3 cylinders.

Looks like you had a sticky ring or two, which is why the penetrating oil works to free it up and get you a better compression.. it's not a miracle cure, but it's enough to get the engine running which is what it needs to do they get the compression rings to seat properly again.... And I noticed that you got good spark there judging by the way you jumped LOL

i found this video and you very well may have saved my tail on a little LT80 kids quad also a 2stroke. that had been sitting for a very long time while i slowly rebuilt it . at 1st i thought it was the starter well pulled that and everything was fine . then maybe the relay which it tested within spec on the ohm meter lastly got a new battery for it and it was still kind of struggling i guess from lack of lube tried that 1 time working like it should now . just sprayed a little more not much of deep creep going to letting it sit for 24 hrs before getting some premix fuel and a new plug tomorrow

The compression increased because he charged the battery between tests. You can hear that it's cranking faster in the second test.

Sounds awesome

Putting oil, in this case the seafoam, in the cylinders increases the compression every time it’s the easy way to tell if rings are going bad. Being said, I’m impressed it was still higher after it ran for a bit

I use seafoam in my boats fuel tank and my snowmobile tanks regularly I believe it works well

I'll be honest with you brother seafoam Deep Creek is very very good stuff I've used it with success the whole problem with your motor it hasn't been used it needs to be taken out and used like a small block Chevy car motor and everything will come back everything kind of has a heard and is sticking because it sat so long take take it out with some fuel treatment and you'll send Dan after running it for a certain amount of hours a decent amount of hours then recheck the compression and you will see the difference

I said the penatrating oil was worth a try, testing with all plugs out is correct, it would be worth testing again with wide open throttle.

Just did this to clean the piston rings. Psi 105 to 110 on all 4 to start, then 125 after deep creep, but the deep creep is forming the seal, so it's not a true value. I did do the sea foam shock treatment after the deep creep and I'm getting 118 on all 4 and it runs much better. Running 1989 88hp johnson spl.

IS NICE MOTOR ARE YOU THIS GOOD WORK I LIKE YOU BOAT IS COOOOOOL 👍

Savage! #seafoam sponsor needs to happen lol

A pro tip......hold the motor at wide open throttle each time you test a cylinder.Use old plugs when using seafoam.Good luck guys

If you do the same test with engine oil, I'm sure you would get the same result. Sea Foam surely covers the cylinder surface and the ring, and now they seal better like they would do with any lubricant.The second test should be done after using the running the engine for some time to warm up and burn the lubricant. I do not want to say SeaFoam does not work, many people swear by them and I put them in my tank now and then.

hope it not a temporary fix as it is a boat engine if any thing happen to it in the middle of the Ocean, then no one will there to help or towing it

The results were SHOCKING!!! LoL..

The 30 weight oil gives best results

maybe do another compression test before taking it out on the water. adding oil/ext will increase the compression. looks like the piston rings may be worn also does it hold compression is something you should check. anyways thanks for the video! good luck with your boat!

you should run the motor , let it cool then do compression again. if its been sitting, good chance a ring or 2 is just gummed up. those additives did nothing but help seal the rings because they were bone dry from sitting. the power tune is good stuff, however.

Sea foam is the she-i-tee!

Serious question: do you think it's worth buying and messing around with a used black max condsidering how old they are? I had one a long long time ago and rember drilling out corroded bolts, and they just don't get better with age. Thank you

its the same stuff as Merc power tune. Of course you are going to get some compression back with cylinders filled with a penetrant oil. You might even get lucky and those stuck rings in that cylinder might free up without destroying the cross hatch of the cylinder walls. Next step clean the carbs and send it.

"That wasn't smart!" I would have done the same thing.

How do use this? Do you leave it in the motor remove it?

Will super hero, how about some over sized pistons and chrome moly rings and deck the the block

Something leaking out of the top left cylinder at the 4 min mark.

how is deep creep different from other penetrating oils?

Any oil brings up compression

Could compression increased because of the oil sprayed in the cylinders? Asking for a friend

This why you should run a product called Ring free ....once or twice a year!

****Did I call it.. go ahead and check, I'll wait right here...

hey what happened there! Why you’re hopping ! 😅😅

Just question bro, aren't you supposed to have a hose hooked up to that motor when you try to start it?

I always do the same but with fogging oil and the engine running you will loose all the sticking ring

Your battery sounded dead when you first did it and then the next day it sounded like it was charged

Hey guys I'm having a low compression problem on a qg15 engine, i change d block and now it's not starting, any ideas?

Snake oil my Friend temporary fix believe me that engine is 1 step away from a rebuild , if they even rebuild outboards . Do not trust you could be stuck on the ocean

That’s awesome… $400. That just makes me mad😀

Coral Gables 🌴🇺🇸 Suggest a run on CANAL over by your house. NOT far as it's going to 💩 the 🛌 😥. 🏄

Use brake clean instead. I’ve had success with that loosening up rings.

I say run it but make sure someone can tow you back if the motor doesn't run right did you change the oil in the engine and do a service on it just to make sure everything is good before you put it in the water but you got a deal on that engine

Boat vibes on top💯💯

All plugs should be out, and throttle should be wide open

The battery was dead on the last one you did first the next day. How about hook up a battery charger for all the cylinders testing.

To be honest.. mechanics tell you not to use seafoam

First ride on my ski after this method was amazing I got the same low psi after running my ski in the water the second time so idk how well this works

Have 75 psi on one cilinder try that

Is the motor at full throttle? It should be for compression test

Hi, You definitely had a lightly stuck ring on that low compression piston which, frankly, ANY penetrating oil would have released. While we're at it, the true and tried solution pros use for that is a mixture of ATF + acetone (50-50). As to getting the post-Seafoam increased readings in the other cylinders, I'd bet it essentially derives from measuring compression on an originally dry VS a than wet cylinder. Sea Foam is not a bad product at all and surely holds its own against any other of its class (Power Tune, Marvel Mystery Oil, STP etc.) but honestly, its virtues remain short of magical as some users profess. Regards !

Mechanic in a can 🤣