Backfires at low throttle

[Boog]

Brahma has settled down on the high idle and I do have the spare throttle body unit now that I can swap in someday. But now, the bike is backfiring at idle and at low throttle positions regardless of gear or speed. The small explosions are coming from the throttle bodies and big enough to transmit into the floor board as I feel the percussion on both my leg and then in my foot.
I have left a message with MOD to call me back. Any ideas here folks?

 

[warp9.9]

Sounds like she is sucking air Vacuum leak would be what I suspect. I would hook up to the ECU and have a look see at the vacuum numbers.

 

[Boog]

Sounds like she is sucking air Vacuum leak would be what I suspect. I would hook up to the ECU and have a look see at the vacuum numbers.