Hmm yes thanks everyone. Think I will take the motor apart and have a look but doesn't sound very hopeful! Maybe I'll order a new motor and then if I successfully repair this one at least I'll have a spare...
Thanks
Hello!
I bought a tsdz2 36v last summer and flashed it with the open source firmware. It's worked really well for me and now has 500 miles.
Over the winter it had to live outside (covered) but when I got it out again recently the pedals would not turn. After applying some oil i got them...