2012 crf450 wont start

I pulled the fuel line and kicked and it is pumping fuel.
Compression is at 57lbs.
Spark is every 3rd kick or so?
Timing is all set dead on.
I haven't checked the injector yet.
Spark when it happens is bright blue yes.
Has a new cam chain.
After it ran can timing was still good, intake valves were a little loose but in tolerance.
No flashing on the MIL
And I haven't played with the kill because I'm getting spark which tells me the kill switch isn't causing issues

Update. I bought a shim kit.
Put a torpedo heater toward the motor for 30 minutes and let it warm up, now that the motor wasn't freezing I have low compression at 47lbs. Book says 57 is standard. Also with it warm the intake valves were in spec and one exhaust valve was a little loose so I shimmed it to tolerance, and kicked my life away. A few backfires but no start. Does anyone know the standard amount of turns on the idle adjustment screw? I'm going to throw in a new piston and rings and double check all electrical and fuel systems to make sure I'm getting those.

4 strokes don't have that much compression. 2 strokes are over 150. You won't find a stock 4 stroke over 60. And RockyRider you may be right, the piston I put in was with the crank I installed with 10 hours. I plan on putting my new oem in on Monday. I will update again then