Yes that's true but then you will still get some return leakage.
I actually had an Engine on the stand and hooked up some jumper cables to the starter.
It had no carb but reed cage, reeds and intake boot were on. I then spun it over and watched the reeds open and close. At starter speed (what ever rpm that is) it is amazing how little those reeds actually open and how fast they cycle. My reeds at the time had a gap and they did close up.
The point right now is that you have a compression issue so if you can getm shut that would be better.
Also before you put the Engine in do what I have done above. Spin it on the bench with compression tester in it and wide open throttle --- or even better -- no carb on it at all. Then see what the compression is.

I flipped the reeds around no gap at all now . With the compression test I took the last reading with the engin ha I mean motor (( Internal Combustion Engine ? )) out of the fram I wanted to make sure I had good competssion before I put it back in . What a lot of people keep saying though is the motor (( Internal Combustion Engine ? )) has to run a while to let the rings seat in the cylinder until they do the compression will be low .

That hasn't been my experience. Read above comment.
You want it to go from 90psi to 135psi --- well that aint gona happen.

Put my motor (( Internal Combustion Engine ? )) all back together again checked cylinder to piston clearences that's good ring gap good leak an vacum test good . Then I bench compression tested it with 3 testers all about the same the best I get is 100lb . I don't know were to go from here driving me nuts plus I'm doing this with a cast on my leg if my wife finds out shell put my other leg in a cast .

This might sound stupid and I am not taking a shot at you but if the carb is on it are you holding wide open throttle during the test ?? Just asking.

Also if you are testing it on the bench is the vacuum port for fuel pump blocked off for the test ??
It should be.

The carb is off and the vacum line is blocked off at this point nothing is stupid don't worry I've been shot at a lot luckily I was only hit once .

Well if you had missed something I would have said that you got hit in the head.
Must have been a grazing hit. It's a puzzle.

You said ring gap was good but may I ask what that number is? ?

The ring gap is .012. I wish it was a grazing hit I spent 7 months in a burn unit and still haveing a hard time at thins . The one thing that gets my mind off it is working on the 2 odyssey's

Any pics of the head wonder if it has been machined in the past?

Burn unit WTF?

I'll take the top off and take some pic but I don't think it was machined but I could be wrong .
Aug 4 2013 Afghanistan it was the end of my 3rd deployment that ended me up in the burn unit .

Thank you for your service.

Second that.
As a Canadian the only reason I have such a high standard of living is because we have a pit bull in our back yard, so no one will take us on. I am smart enough to realize that.
Thank you for your service --- from north of the border.

Another stupid question here:
You didn't put the piston in backwards did you ??
Serious. The reason I ask is because then the ring gap is on the exhaust port side.

Sorry it took so long to get back I was not able to move around to good yesterday a little better today . You had me thinking all day if the piston was in wright so I checked today and yes it's in the wright way .the ring gab is .012 .and I don't think the head was machined. And thank you for your kind words it lets me know what I was fighting for and what I gave up to be there .

At this point I don't have anything left to offer. You have covered it all.
My suggestion is put one layer of the stock head gasket on and run it as is.
I had an Engine with 90psi and it ran.

The problem I had with the 90psi Engine was that when I did the vacuum and pressure test I didn't have the intake boot on and it had a rip I didn't notice. Then I bolted it all together and did the compression test. It ran like a raped ape LOL, because it was running real lean. Eventually the thing blew because I lost a rod bearing. I lost the rod bearing because it didn't get enough lube due to being run so lean. My machines are liquid cooled so I can run 50/1 oil ratio. That's not much lube getting to the rod if the intake boot is cracked.

Even at 90psi I doubt very much you would notice huge power gains between that and 135psi.
My brothers machine has 170psi on a mod Engine and mine had 90psi at the time. I kept up, and he didn't pull me on the straights hardly at all. Maybe two oddy lengths until top out speed (64.3 mph). This may have been due to the real lean mix because of the intake boot leak. I drove that thing for a whole summer before poofkaboom. I remember him swearing because he had the mod Engine and I had a stocker and when he drove it he was shocked at the power. Moral of the story is if you run it a bit lean you get go LOL. Buts its dangerous unless you run good fuel and extra oil.
Lean is mean.

I thought of doing that just putting it back on and see how long it last . The cylinder is tight no leaks but I hate to do things half ass so I bought a new top end off ebay same bore size plus trail ported and exhaust manifold match fit I wanted to have 2 cylinders so when one went I could just put the other on no waiting . I have 2 of them for my sons 250 . Thanks for all your help I'd be lost without this site .and Canadian oddy you have your Owen pit bull I knew some Canadian Royal Marines great guys and the kind you would wont watching your back .