Need help soldering

[speed demon]

Yes I did shorten the leads and they come straight out of the housing(brushless) I did have brian at work give it a go for me and he has been an elctrian for 20+ years and he thought the wires were either burned up(new motor) or some type of coating. I do use flux paste and probably have plumbers wire. What is a good kind or brand? Is silver solder better? Lead no lead? I solder alot on my old mopar but nothing this critial. thanks for the quick replies.

One last thing if the wires have something on them which is not letting the solder flow could I use some acid(etching stuff) on the wires to get it off?

No pic but I might be able to get one in awhile.

Originally Posted by speed demon

Yes I did shorten the leads and they come straight out of the housing(brushless) I did have brian at work give it a go for me and he has been an elctrian for 20+ years and he thought the wires were either burned up(new motor) or some type of coating. I do use flux paste and probably have plumbers wire. What is a good kind or brand? Is silver solder better? Lead no lead? I solder alot on my old mopar but nothing this critial. thanks for the quick replies.

One last thing if the wires have something on them which is not letting the solder flow could I use some acid(etching stuff) on the wires to get it off?

No pic but I might be able to get one in awhile.

OOPS!!!!! On most brushless motors, the wires are just an extension of the winds inside the can. They are a specific length, and should not be shortened under any circumstances. They do indeed have a resin coating, excepting the very ends (last 1/4" or so) which are not coated so that they can be soldered to. I personally do not know of any way to remove that coating. You could possibly try muriatic acid, which you can purchase at lowes hardware for very cheap. I do not know for sure if it will have any affect on the coating though.

[speed demon]

Well live and learn I guess. Glad I only paid 30 bucks for it. Here is a pic and I'll see if some acid will work. The reason why I cut them was because I needed long leads. I desoldered the bullit connectors that came with it and tried to butt solder some extensions on to be able to reach my speed control. I thought I had it good but when I went to run the motor it was clogging very badly. I figured it was just not a good connection and that's when I bought the 4mm bullits and cut the wires.