Reply To: GT250 EFI DSpec Stalls at Idle after Warm Up
Important: the Kline- pin is ONLY available on the BLUE interface. Not on the bike. I only mentioned it just in case you intend to buy one like it and solder on it the 3 wires.
As for the bike connector, the 2 black wires are the ground, the red wire is 12.5V the blue wire is Kline+. If still in doubt it is very easy to find which is which using a multimeter. You should find +12V between the red wire and any of the 2 black wires. The polarity is important and also note that 12V is always available on this connector even with the key switch in the OFF position. The below photos should help.
Re the suggestion that the issue is injector, this is of course possible. Did this technician explain why? I would be interested to hear what he has to say. From my own experience it is more likely that the issue are the coils. I have so far replaced 2.
Good luck
