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I don’t understand - How did you manage to do a compression test if the starter motor did not swing the engine ?

Anyway, to determine what needs to be rebuilt I think it will make sense to get a new starter motor first - and then to do a “dry” and “wet” compression test on the engine.
To do a “wet” compression test you just need to squirt a lil’ bit of oil into the engine via the spark plug hole.
If you get a higher compression reading during the “wet” test, it means the cylinder sleave or piston rings are worn, or the ring gap is too big.

If the compression reading remains the same during a “wet” compression test, it means the cylinder head needs a rebuilt.

P.S. IMPORTANT.  If you got that 52 Psi reading while the starter motor was cooking (turning the engine slowly) you should not rely on that initial compression reading. To do a proper compression test the starter motor needs to work properly, and needs to swing the engine properly.

Sorry i should of explained it a bit more. My neighbor has a couple scooters just laying around so i went and took a look and found the same starter on 1 of them so i bench tested it and it ran fine so then i installed that 1 to do the compression test. I did not do a wet test so i will do that first thing in the morning. Also once i installed the good starter and was trying to get it to start there were multiple times when i would try the kick start just to give the electric starter a break and kick start was locked up. Not the actual kick start but the engine few times i couldnt budge the kick starter. Electric starter also a few times would lock up i would then try kick start and same locked up so i would take spark plug out hit tue electric start couple times sometimes that would free it up other times id bump the electric start then really jump on the kick start to free it up.

Just picked up a 2010 agility with 100 miles on it. Scoot looks like it just came from dealer. Bad news is i got 52 psi compression. So a rebuild it is. Never done one so excited to tear onto it. Should i remove the motor and tear it all the way down? Or leave it in and just do the too end? So many kits out there any advice would be greatly appreciated. Thanks!

Where would i find the model # at? I looked and its not even on the title?

*** UPDATE *** Ok guys i finally got it to start!!!! R these auto chokes anygood??? Anyway if i crank it with throttle wide open for roughly a min or so it will start smoke a bit and i have to keep it half throttle or more to keep it running.. wont even try to start with no throttle. So i assume i need to pull carb? Ill research cleaning one never messed with one. Thanks guys!!

Any idea where i might find one? Not having any luck so far.

is this the part that clicks when you hit the starter button?

Yes the starter relay. I also assume the red wire with white stripe wont have power till the relay closes (clicks) to relay power to the starter so it will be dead until relay closes if im understanding it all correctly. Soooo took the starter out as ive mentioned previously hooked a wire up to my positive terminal on my battery then to the positive terminal on starter then hooked a ground up,to the flange on the starter then clipped the other end of ground to clean spot on frame and nothing starter still wouldnt work.now again battery showing 12.7 volts so looks like new starter it is. Thoughts? Hopefully this will get it to at least crank over

Didnt get a chance today to check. I will check that in the am. Thanks!