Can timing go awry with EFI tuning or does it tend to be stable? I guess anything can break down.
My CVO 110 Springer does this occasionally
I have always assumed it was a function of a "lag' in the ACR release system
Even my old Evos used to spit back thru' the carb fairly regularly
As a point of note , not all Calibrations in the various cal file lists have the ACR's toggled to "on". Maybe that ?
Getting cold so I've retired the bike till spring for maintenance.
I pulled the filter housing and checked to see if the injectors squirted any fuel when I hit the run button but there was no evidence of fuel.
Is there a better way to check the injectors on the bike?
Brash . Which age range does this recall you mention apply to ?
Could you post a link to this info' ?
Looks to me that the 621 calibrations in the Supertuner Pro are for way younger bikes than the OP mentioned