OK, that makes sense then. Try pulling the wick and heating it with a torch. Let it glow red for 15-20 seconds and then quickly dunk it in water. The wick being red hot will not burn you, but be careful with the water, it will shoot up the wick so really, just drop it in a shot glass full of water (or something equivalent). Do this 3 or 4 times. I am betting that the first 2 times you do this you will notice what looks like little embers on the wick. This is juice gunk and carbonization and what does not burn off will be shocked off by the water.
Once you have done this, heat it once more to be sure there is no water left on the wick.
Now add a few drops of juice to the wick and light it on fire. The wick may get red hot, do not quench in water during this step (you may want to use a tweezers or unbent paper clip hold the wick during this step because you want to let it burn till it goes out, we don't want you to get burned).
Do this until when you drop juice on the wick it gets sucked up instantly. This can be as few as3 or as many as 10 cycles.
Now wet the wick once more and put it into the Zenesis and re-wrap a news coil.
Fix any shorts (drop juice on the wick as needed to prevent overheating on spots that are shorting).
Once the shorts are gone, tilt it about 45 degrees with the wick down and the vent hole up and fire the coil continuously till the juice starts running down the wick.
You should be in vaping heaven within 10 drags.
This works for at least 90% of the time. Like I said before, there is always that occasional stubborn wick