Now on blip of the throttle just to hear pips is BS sometimes.On my old Shovelhead if you get to a stop light for more than a minute or so the carb (yes a carb)will load up a nd if you dont blip it will stall.It is tuned to a tee for riding but hates to idle for long periods.Old bikes have quirks and all the old Harleys I have rode are like this.
2004 Vic Touring Cruiser Stage1 kit Barnett clutch and spring
2007 Harley Street Bob V&H Big Radius pipes Stage one breather
1972 FLH (been through 3 wives and still loves me)
1976 Jeep CJ5 my orange turd