Just had my 05 CVOFLHTCEE dynoed and although bike has more power and runs better, I get an occasional pop when backing off throttle.My Dyno man says its because I am not backing off throttle completely thereby leaving fuel which is causing problem? I never had this problem on any of my Harleys before (carbed) and even this Bike until it was Dynoed?

 

well see, what had happened was...

I hope you aren't satisfied with that answer because although that may be the cause and effect... it shouldn't exist in the first place.

 

Decel popping is not a "bad dyno". A well tuned bike can exhibit decal popping.
Your bike is probably well tuned, go to any road track and sit by a turn and listen to the decal popping as the cars slow for the turn, they are also well tuned.
The popping can be tuned out by adding fuel which will then be a "bad dyno".
If you put your stock mufflers back on you probably won't hear it. Do a google search there is a lot written about this on many forums.

 

the OP should have asked for a dyno tune to the optimal performance possible MINUS the decel popping or I should say... at least that is what I would ask for... best performance given what I have added and tweak the afr so I don't hear that ISH on decel

 

With my other bikes Carbed I always richened up the low speed mixture a bit and that solved the problem,I would prefer itwith no popping and give up a bit of power.

 

This is caused by exhaust leaks also so check that out before messing with the tune.

 

Had that once and tuner had to make a fuel adjustment.

 

DE cell pop is caused fuel not used up. If your bike is running better don't worry about it. Like one post said if you had stock pipes you would not here it. Your came out of the factory tuned lean ran hot because it was lean. When you tune it you add fuel run better and cooler.

 

It may well be from not backing off the throttle as the bike will not enter decel mode.If you are closing it, have the tune fixed. Fixing that will not affect power or fuel mileage. If you are still running stock head pipes they can be tough to eliminate the pop, but not impossible.