Powercommander help!
Thread Starter
|
Advanced
Joined: May 2012
Posts: 52
Likes: 0
From: Dexter, MO, USA
Powercommander help!
I swapped out the stock mufflers for a set of baffle-less fishtail slip-ons on my 03 Heritage Springer. I checked with the dealer where I bought the bike and verified the bike has had Stage 1 (it has the round air filter). I've emailed and called Dynojet 3 times now and have tried 6 different MAPs they have given me still with no success. With all the MAPs they've told me to try I get hesitation and popping in the higher RPM range in 1st-3rd gears and again in 5th gear at around 75 mph. The weird thing is the MAP that comes closest to working right is the one for all stock but I still get popping in the lower gears but not the 4th or 5th. I'm pretty sure it isn't a problem with the bike or the powercommander as both were functioning perfectly before the new slip-ons. Anyone have any experience with the powercommanders or any idea how to find the proper MAP since dynojet doesn't seem to have a clue? I'd hate to go back to the stock mufflers but if I can't get it to run right with the slip-ons I may have too.
Road Warrior
Joined: Mar 2008
Posts: 1,465
Likes: 3
From: Montclair, CA.
Tourer
Joined: Feb 2010
Posts: 312
Likes: 11
From: Winston Salem, NC
Other than finding a map on their site that matches your setup. Your only choice is a dyno tune or trial and error. If you know the rpm where it is popping and can guestimate your throttle position and add fuel where those points converge and then ride it to see if it had the desired affect.
Stellar HDF Member
Joined: Feb 2011
Posts: 3,048
Likes: 3
From: Central Jersey
this is spot on. Downloaded maps have tons of slight variations in them..something as simple as the air pressure at your ground level altitude can throw them off. The only ways to truly dial it in is to take it to an indy with experience with the PCV, or get the auto-tune.
I downloaded a map from Dynojet's site, and it was good yeah.. but it was night and day after I took it to an indy to dial it in... the 'feel' was just phenomenal.
Downside.. my indy charged me $200 for the proper tune, but worth every penny..except the two I just put here.
Trending Topics
Club Member
Joined: May 2007
Posts: 145,895
Likes: 821
From: 40 miles Northeast of Indy..
Is Ur problem a little popping or Ur motor isn't running very good.??
sometimes even with a really good tune U'll still get a little popping.
.
sometimes even with a really good tune U'll still get a little popping.
.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
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
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider
Verdad Gallardo
The Best and Worst Harley-Davidson Moves of 2025
Verdad Gallardo
Thread Starter
|
Advanced
Joined: May 2012
Posts: 52
Likes: 0
From: Dexter, MO, USA
With the MAPs the Dynojet suggested the motor ran horribly, with the all stock MAP the bike runs goods and has excellent power just has a little bit of popping in the lower gears.
Thread Starter
|
Advanced
Joined: May 2012
Posts: 52
Likes: 0
From: Dexter, MO, USA
So I've decided to try and make my own custom MAP by trial and error, basically starting with the all stock MAP which is the one that works best and modifying it to try and make it better. I get popping when not accelerating in 1st-3rd gears. So Would I need to add fuel to that RPM range or take fuel away?