You might try squirting some starting fluid in the air intake. If the engine starts briefly then you know you have spark but no fuel delivery. Also check all your fuses carefully.
I don't see how you could lose compression overnight--makes no sense.
But just in case, here are the compression specs:
- Standard: 830 kPa (8.5 kgf/cm2, 120 psi) [250 rpm]
- Minimum: 680 kPa (6.9 kgf/cm2, 98.6 psi) [250 rpm]
- Standard difference in chambers: Within 150 kPa (1.5 kgf/cm2, 21.8 psi)
- Standard difference in rotors: Within 100 kPa (1.0 kgf/cm2, 14.5 psi)