Struggling to solder carisma motor

[Jimbob2911]

Afternoon
I do not seem able to get solder to stick to carisma 4500 motor wire.
I have soldered quite a bit and never had this problem.
The solder will not bond?
Tried everything.
Anyone got any ideas.
Thanks.
James

[CHEVY]

Flux on wires it cleans before soldering

[Jimbob2911]

Chevy

I have put plenty of flux on it still will not take. It's really strange?
James

[CHEVY]

Try some different wire sometimes cheaper stuff does not like solder unless lead based

[Jimbob2911]

Chevy
I am literally trying to solder the carisma direct to the esc. Solder sticks fine to esc and the battery wires I have put deans on etc etc but the carisma motor wire just will not stick. Even when in through the esc holes it forms a nice round solder joint but the motor wires will just pull straight out. No bond at all?
As I say very strange? Almost as if the motor wires are corroded or something.
I wish I had never tried to make it look neat and left the original connectors.
Is it possible to open up motor and attach new leads?
James

[Dombrasky]

Hi
its because the motor wires are covered in a type of insulating lacquer
that is applied to stop the wires shorting in the can windings, you need
to scrape back the wire with a hobby knife or small file (or dremel)to remove it
this is quite a common problem, and can cause cogging if you don't
get a good connection