EDIT- sorry I took so long on this post, Versy got a post in ahead of me. Try his decomp check first...Okay..
Battery is good.. it is powering the starter... and the engine is turning over at adequate speed...
It sounds like the petcock is good... it's a Raptor, it's set to ON, and the vac line is plugged...the carb is getting fuel...
The engine is turning, so nothing is obstructing rotation in the clutch case... (I'm guessing at the torque... those are inch pounds ?... but, nothing stripped out, and nothing is leaking)...
We're down to basics...
I'd recommend that you double check every connection you can find under the seat and tank...
Then,.. it's spark, fuel, air, compression,
You said you are getting fuel, and spark... air hasn't changed...
That leaves compression... rings. valves, decomp,...
Rings haven't changed...
check that there is some slack in the decomp cable...
If you haven't removed the head cover, or taken off the camchain entirely, the valves should be okay...
Okay, no problem,... it should start...
...
You've missed something...
On the off chance that you've been cranking a lot,... a whole lot... without starting...
There is a thing called gas wash,.. that can happen when fuel is entering the cylinder, but never gets burned...
This washes the oil seal off the cylinder walls, and can bring compression down to almost zero...
Try a squirt of oil into the sparkplug hole... give 2 seconds of crank with the sparkplug still out,.. then put the plug in and try to start again...
If that ain't it... I just don't know where to go from there...
Start over,.. and check everything again...
Battery, cranking speed, fuel, spark, etc...
Best luck... keep us informed...
You know, as do we,... that this is a fixable problem...
... and it's likely nothing too serious...
We've all been there...
...