Compression results:
Cylinder 1 averaged 145 psi over 3 trials
Cylinder 2 averaged 157 psi over 3 trials
They're both within spec and within a 10% difference though close to the extremes for both constraints. The engine was at running temperature.
@
Motofool those plugs were fairly new so I'm not entirely sure how accurate the read out would be on them, but I'll definitely check into the ignition timing as I suspect at around idle it's off anyway but I don't think this will be the case for the higher rpm's, but it's worth a look anyway.