Yes Connector #8 is probably a display connector. The translation of the label doesn't make any sense so I can't confirm it yet.
I enjoy challenges like this, I guess its half the fun for me
. I probably would have found a kit that has everything but, the pricing on the Spanish amazon is just nuts. Over 100e for a kit like this this when I could buy it all separately for under half the prize.
I got the other controller and the throttle from Amazon today! I think I will go whit the other smaller controller I got today. Its called "XLD Brainpower Motor Controller" model:KSLZ05. Its got throttle, PAS, brake light, cruise, self learning, hall sensor and 3 phase line. there's still one connector I have no clue what it is and nothing is labelled. I have found good information on the controller at the endless-sphere forum.
https://endless-sphere.com/forums/viewtopic.php?t=96736 many of the connectors seem to be different though... I connected the controller to the battery and measured 5v from the hall sensor connector, so far so good! Now the next question. The wires coming from the motor: 3 phase wires, 6 smaller wires, black, red, white, green, blue and yellow. the hall sensor connector on the controller again only has 5 wires...black, red, blue, green and yellow. Theres one wire too much on the motor wires for the hall connector.. what's that for and which on is it...? I think I will just end up guessing and seeing whats going to happen when I connect it...
Next day continuing writing post...----->>
So now I connected the controller to the battery, motor phase and hall. The extra wire seems to be for reversing the spin of the motor... Now it works! Now I just need to figure out a way to fit the controller in the frame of the bike because it's a bit too big... I might try to cut the existing hole a bit bigger whit my Dremel tool so the controller fits inside the bikes frame nicely. The old controller did not have a heat sink so now this one will not fit... Over all really happy how this worked out!
I will post a video and some photos when I get everything finished!