BadDyno?
Thread Starter
|
Tourer
Joined: Feb 2007
Posts: 388
Likes: 3
BadDyno?
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?
Seasoned HDF Member
Joined: Feb 2009
Posts: 5,642
Likes: 1,985
From: Cleveland Zoo
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.
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.
Last edited by OldMike; Sep 19, 2015 at 09:40 PM.
Road Captain
Joined: Dec 2012
Posts: 577
Likes: 20
From: Reno
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
Seasoned HDF Member
Joined: Feb 2009
Posts: 5,642
Likes: 1,985
From: Cleveland Zoo
This is caused by exhaust leaks also so check that out before messing with the tune.
Grand HDF Member
Joined: Dec 2007
Posts: 4,999
Likes: 55
From: Bay Area
Trending Topics
Seasoned HDF Member
Joined: Apr 2014
Posts: 5,468
Likes: 2,517
From: Lititz Pa
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.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Stellar HDF Member
Joined: Sep 2007
Posts: 2,458
Likes: 671
From: Vancouver Island B.C.
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.
Thread
Thread Starter
Forum
Replies
Last Post
fastjoe
Dyna Glide Models
2
Apr 22, 2016 11:37 PM
Chief Razorback
Ignition/Tuner/ECM/Fuel Injection
3
May 27, 2010 10:13 AM