Right Leg Doing All The Work?
 

So basically I came to this realization today as I was doing hill repeats. I HEAVILY rely on my right leg to muscle me up when I'm not spinning. During sprints, my left foot just sits along for the ride!

What can I do to mend this asap!? This is really hurting my power output most definitely.

(The search function required far more effort than this did)

Is this because your left leg has little strength or more of a coordination issue? You can do one-legged drills to get up strength in that leg.

Rashaan Bahati has pretty much been pedaling with just one leg and he's been winning races.

Some of the members of my club advocate pedaling with only one foot clicked in and letting that one foot do all the work.. I saw one really strong member unclip. I asked are your cramping or what?.. No, he said, it's one sided pedaling.That , the means to make you use your weaker leg and make both equally strong. Or better yet. Super Strong.

I came to a similar realization when I was riding. Right leg doing more work.
As mentioned I tried the one legged drills on a clear stretch of road. It's really effective. When you get both back in you feel much stronger and more aware of each leg.
It also helps you focus on getting a nice rounded stroke.
Give it a shot!

leg length discrepancy?

I had a similar problem, but realized my seat was to high so it was just really akward to use the other leg full out...

Most riders have a similar imbalance to some degree.

Do 1 lp drills as suggested. Also core work, stretching, the usual stuff that I know you know about and are already doing, right?

If it really continues to be a problem, you might have a nerve function test done. I had a chiropractor do mine and it confirmed what I already knew (significant imbalance) but I bet an MD could do it too.