The gremlins have certainly got into your bike!
This problem now sounds a lot like a fueling problem. There are lots of things that could effect your bikes metering of fuel. Check the simple stuff first. Make sure all the moving parts around your carbs throttle boddies are all linked up correctly and have free movement. Obvoisly if they are spring loaded it won't be free but you know what i mean, unobstructed, smooth movement. Also check that all the wee rubber pipes are not split and are properly fitted. Makesure your fuel lines not leaking and any fuel filters are clean. Check for kinks in the fuel line as this will restrict flow.
Not sure if you have carbs or Injection on your bike. Carbs have a diaghram that opperates the needles using vacuum. If the diaghram is split you would find the engine will idle and might even accelerate a little but it wont go fast, and will fail to go up hills etc. If its injection there may not be enought pressure in the fuel rail and you could have a faulty accumulator or fuel pump. Also with injection you could still have a faulty electrical connection which is making the ECU behave incorrectly. So check out those ECU wires, all the way to the sensors too. Kinks in wires can be just as bad as kinks in fuel lines, they indicate damaged wires, so look out for these too.
Sorry to hear your having such a hard time with you bike but keep at it, you'll find it in the end, there are only so many components in a bike.
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