I am using AX 2308N 1100kv brushless Micro Motor- hobbyking with Hobbyking SS Series 15-18A ESC, now when i use motor without props it goes fine... but with prop. it stops, as it dont knows in which direction it has to rotate.

i had gone thru several blogs, i had tried everything, checked battery, different esc, wires...

some topic says abt prob in connection in motor coil connection or loose magnets...
but how to check it 

senior help plz...

Karun plz give the link to the motor and some details like the prop you are trying to use on it. and some pics of it. so that one can help you rightly.

yea sory i forget to give link...

http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=5429

and uploading a video to make clear what exactly is happening...

prop is http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=11333
but i dont see issue with it.. as it works fine on other identical motor....

Karan bro only one motor or all?

Resolder the bullet connectors at motor end. Each motor wire should have multiple winding wires twisted together; while soldering make sure each of these winding wire have proper contact with the connector.

dharmik bhai, this prob is wit one motor only...
if u rembr my last post of tri. i had same prob. and i replaced motor....

but now i want to use it, and i m tierd of odering stuff, so giving a try to repair b4 reorder...

thanks sunlikestar,
but i m not using any connectors, i had directly soldered wire....

i opened up whole motor...

and found two broken wire in winding...

phew... finally i found problem, i got it fixed....

Karan bro i do agree with SunLikeStar. I am sure somewhere near connector or motor connection is really weak(only few strands might have left). So your motor is only able to handle no load current. So it moves without prop.