So to end this long story, the sensors from China/Asia aren't good (or maybe all the suzuki, yamaha type sensors...), they have the potentiometer reversed, so useless for our 630. I bought a full throttle body from a motorcycle shop in Poland, put it on and tadaa, every fine now. So happy that I can ride again!! Thank you all for the help
so if I buy this I do not do a good deal? It will not work ? https://it.aliexpress.com/item/Sens...R-ZUMA-Suzuki-BANDIT-1250-No/32848004726.html
comparing it with the standard one fitted were identical? they had the letters written internally V-T .....
letters were the same, looked the same... But the internal voltage regulator was inverted (goes from 4V to 0V)