Howdy!!
I have a raptor 350 that boggs / dies when I squirt the throttle. I cleaned the carb a few times.
It will run well with just a little throttle, in all gears, anything more than 1/3 rd throttle and it boggs out.

The bike idles great with the choke lever all the way to the right, but then if you move the lever to the left it dies.
If you increase the idle so that it runs while the choke lever is to the left then the bike is screaming when the lever is moved to the right.??????????

My I ask what are your mods within your engine? Do you have a aftermarket exhaust or air filter? It may need some re-jetting that is why it keeps bogging down.