Auto

Do the wires still heat up when it's stopped?
I wonder if you may have fried a coil on your motor...

Don't think so cause I ran the motor outside the gearbox and it works non stop. I cleaned the triger contact, ill try again tomorow cause I broke the neg battery conector

me thinks its time for a gun doc if u ask me, now it seems yer just breakin stuff faster then yer fixin anything

He said a gun doc changed the trigger assembly but it didn't fix anything

the first of his issues started when HE opened the gearbox to change a spring. After that he has had nothin but issues.
he took the gun to a gundoc who thought the trigger contact was no good because the gun would dbl feed or shoot 1 bb then not shoot any then shoot 3 ( ive never heard of an electrical issue causing a gun to not feed or to dbl feed) he obviously cant fix it on his own and if after two hours the "gun doc" he chose couldnt find any problem but figured the trigger contnact was causing the issue id say said gun doc probably was a bad choice ( we all know there are alot of "gun docs" who are not gun docs other then they say they are.
he needs a real reputable gun doc to look at his gun befor he goes and breaks something else, he could have just had a gun doc swap his spring at the beginning and saved himself the hassles he is having now.

a blown motor winding wouldn't cause your motor to stop working, it would just fail to start in a certain range of it's rotation.
You can test it by painting a small mark on the neck of the pinion gear, then rotating it's start point 1 click at a time and see if there's a spot where the motor just doesn't start

IF you have access to one , the next logical step is try another motor. I had one that would not fire under load unless stone cold.
The lack of click indicates an electrical problem so it can only be
-battery
-motor
-trigger
-short in wires
-fuse issues
-incorrect polarity
the fact it shoots periodically rules out fuse and polarity issues.

it worked on auto. but as soon as i put it on semi, shot one time and dead

Given your previous threads, how is that any different? Listen buddy I know this is newbie tank and therefore nobody has said anything negative to you BUT HERE IS THE DEAL You need to precisely describe symptoms and answer questions accurately , you need to tell us exactly what you have tried in what order or if you don't really want help and think you know best- then go away and keep taking it apart untill you wear out all the threaded bits

I've had that happen before and it was a pain in the ass to fix. I feel like if I told you what I did you'd have a very high chance of ruining your gun even more. I think at this point there are so many problems that have accumulated that you need to just see a good, reputable gun doc that will keep working at the gun until it is fixed, not a guy that will change a trigger assembly, not fix anything and charge you for that.

Ya I bring it to a good tech