Polaris Phoenix 200 grinding noise under throttle.

Hello friends. When I accelerate on my son’s Polaris Phoenix 200 quad it makes this grinding noise and loses acceleration. Sounds like stripped splines. I disassembled the primary and secondary clutches...all looked good. I even added a new belt. Drained the tranny and no metal debris in it. Any ideas? Trying to get it fixed in time for New Years. Thx in advance.

Here’s a YouTube link to demonstrate. https://youtu.be/ghhOColTKu4

Heat demon heated grips and heated thumb

Just got this the other day and have everything all installed and plugged in and now I am to the point where I need to hook up the red and black wires for power and ground....and this is where I find myself stuck. I am not sure where to go for power and the ground. It sounds like some tie in to the two wires that go to the accessory plug and some hook up to the orange/white wires that are meant for accessories and then ground to the battery terminal located by the front grille. Just looking for some help since I am not a wiring expert.

fuel drain

looking for recommendations on draining the fuel as its bad.
i don't want to just stick a hose down the tank in without asking the question if its ok to do so. don't want to damage anything.
is there ban easier way?
thanks!