So maybe someone can help me, but i think this is the end, and i am desperate=(
After about two weeks from carb cleaning (i have started the bike, it wasn't easy and it has roughly idling, but i thought that it will solve when i synchronise and tune the carbs). I did almost nothing to the bike, after two weeks tried to start it, with the help of car battery, turned the starter for a couple of mins (3-5 i think, thought it was so long because of standing for some time) and then two of cylinders started to idle with throttle wide open (choke on). Then i gave it one-two minutes on this rough idle a then i heard bang from i don't know where, so loud that i literally almost shitted my pants, stopped the engine, examined and turned the starter again, then again a small bang and i have stopped, because was scared. Noticed one of the carburetor oil solenoid wires was off, but i think it is not relevant. So now i'm stuck with this, and freaking choke valves leaking gas. There is a small hope, but maybe someone encountered such problems?
I have bought a working motorcycle, maybe with some maintenance problems, and now i have a piece of junk, because of my stupid hands(