Reply To: GT250 EFI DSpec Stalls at Idle after Warm Up
no, it is no Dspec, it is “FI” version. I used this service manual for diagram, electrical diagnostic and error coding. :
http://www.hyosung.hu/download/pdf/data/service-manual/GV250-GT250-EFI-service-manual.pdf
Yes, i wear the contac cleaner in the top case 
, because first week the bike didn’t start twice in street, and contact cleaning of ECU conector solved it (this is when I saw that silicone of the conector had become like sand). But now for 2 months it has been working right except for that eventual stalling between 3-7k rpm.
Anyway the top speed (about 140 in the clock, 129real) and mileage (about 4,3 l/100km) is fine for me (1’93 and 120kg), and the spark electrode color is like coffe… this is why i wanted to collect the ECU data for searching the mismatching injection at mid range.
I will try to find the cable(s) that is(are) making that bad contact,, thank you 🙂