Where can I find a yk31 36v 1000w controller from please I'm trying to fix my little lads quad but haven't had any luck in finding 1 I keep seing yk31

[hunter1984]

Where can I find a yk31 36v 1000w controller from please I'm trying to fix my little lads quad but haven't had any luck in finding 1 I keep seing yk31c but not the yk31. Any help be much appreciated

 

[fechter]

I'm not sure what the difference is, but you should be able to use a YK31C. You may need to rearrange the wiring a bit.
Here's a manual for the YK31C: