Compression scooter?

Hey people,

I'm having a problem where my MBK Nitro suddenly lost compression. This happened while I was riding. The scooter suddenly lost power and shut off, and then wouldn't start again. At first, I thought it was a seizure in the piston, but the scooter still has no compression even with a functioning cylinder.

I tested the compression by holding my finger over the spark plug hole. My finger just repelled the pressure, not the intake. I tried a new reed valve block with a new gasket, but that didn't help. I also tried a new cylinder base gasket, which didn't help either. I really don't know what to do anymore and would appreciate any answers.