Reply To: GT250 EFI DSpec Stalls at Idle after Warm Up
Update:
With the throttle bodies balanced with a manometer, the bike is def running healthier. But the sputtering problem after warmup is still there! Today I took the bike for a run on the highway and had to stop at an intersection right after. At idle it sounded like one cylinder kept cutting in and out, jumping from 1600 rpm to 2000 rpm. Light turns green, and it struggles to go, until the rpms rise and it kicks back in and stays like that, until you have to come to a stop again.
Just like before, unplugging the MAP to rear cylinder fixed the idle stumbling/bogging, and I babied it back home. I’m going to pull plugs to identify which cylinder is misfiring, although I’m quite confident its the rear cylinder causing problems. What happens when the MAP is disconnected? Does it dump gas and richen up the mixture? Are these symptoms of a rich condition, or is it leaning out?