[how to fool ECU?]

So, I have installed Dynojet and put there more fuel in low and high revs (on track, under full gas around 5000RPM the engine was just like 2stroke). Signaficantlly it has improved! No time for custom map yet but no cranking, no sputtering, no backfire. Even sparks have now the right color

 

so Halelůja! One problem down, many more to go

I'm having the same problem with a set of modified mufflers. I had a trusted Guzzi mechanic adjust the EFI balance and set the TPS but he said the "trim" at idle would not go any richer. I have a terrible hick-up and stumble at idle and anytime I have rolled off the throttle and try to pick the throttle back up it stumbles. Will a Dynojet fix this or is a remapping in order?

[Fuel starvation at speed]

Can someone tell me if it is possible to remove the injectors (to be cleaned) without removing the throttle bodies? I can not find the procedure for removing the injectors, I was told there is a plastic band covering a clip that holds the injector in place. That is not much to go on, any help or photos anyone might have would be much appreciated.