Evo EFI running lean
Thread Starter
|
4th Gear
Joined: Mar 2010
Posts: 8
Likes: 0
Evo EFI running lean
Hello.. I have a 1998 Electra Glide with Fuel injection.
Previously I put a Revtech DFO on it but never really got it adjusted right so I called a bike shop who specializes in high performance harleys. He told me with the Evo's it will not do much good using a DFO with a fuel injected Evo. When I had it hooked up I got really bad gas mileage but never got more performance.
The main reason I am posting is because I just put new Rush pipes with 2.5" baffles. It backfires pretty good when decelerating... I'm assuming now it is running really lean. I'm wondering if the DFO would work ok now or if there was another option to adjust the bike to run more rich..
Thanks...
Previously I put a Revtech DFO on it but never really got it adjusted right so I called a bike shop who specializes in high performance harleys. He told me with the Evo's it will not do much good using a DFO with a fuel injected Evo. When I had it hooked up I got really bad gas mileage but never got more performance.
The main reason I am posting is because I just put new Rush pipes with 2.5" baffles. It backfires pretty good when decelerating... I'm assuming now it is running really lean. I'm wondering if the DFO would work ok now or if there was another option to adjust the bike to run more rich..
Thanks...
Elite HDF Member
Joined: Sep 2007
Posts: 4,468
Likes: 12
From: Bluffton, South Carolina
We never had much luck with a DFO. Check to make sure that you do not have any leaks in your exhaust system as that will cause a decel pop as well. Did you remove the old gaskets and install new ones??
Outstanding HDF Member
Joined: Mar 2010
Posts: 2,877
Likes: 2
From: Hallsville, Tx.
I use a DFO om my 1996 and while I can't say it's improved performance, my plugs are always a pleasing tan color. I have an andrews ev-27 cam, a Cobra 2 into 1 pipe and a Ness Big Sucker. I get about 40 mpg now and did about the same in stock configuration.
Intermediate
Joined: May 2009
Posts: 28
Likes: 0
From: White Rock, BC Canada
Have a 96 Electra Glide and confused by those of you using the PC3 on this years model. Power Commander site suggests their product is for 97 and later models. Are you still using the 96 Magnetti EFI?
I'm asking as I am looking at throwing in some Andrews cams, Adj Pushrods, a Big Sucker Filter Kit and confused by what options I have for controlling the 96 Magnetti EFI since it itself is untunable.
Thanks for any assistance in understanding this mod. Currently my ride is (to quote the fine mech at a local shop) sounds like it's underwater. Very tame. Would also like to get any remarks on whether to put in a EV27 or a EV13. I realize its based on your general ride characteristics and I do a balance of city and highway riding.
Jim
I'm asking as I am looking at throwing in some Andrews cams, Adj Pushrods, a Big Sucker Filter Kit and confused by what options I have for controlling the 96 Magnetti EFI since it itself is untunable.
Thanks for any assistance in understanding this mod. Currently my ride is (to quote the fine mech at a local shop) sounds like it's underwater. Very tame. Would also like to get any remarks on whether to put in a EV27 or a EV13. I realize its based on your general ride characteristics and I do a balance of city and highway riding.
Jim
Trending Topics
Ultimate HDF Member
Joined: May 2006
Posts: 6,590
Likes: 444
From: Ohio
I think that for you to use a PCIII on your '96, you must upgrade the computer to the '97-'98 unit.
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
Outstanding HDF Member
Joined: Mar 2010
Posts: 2,877
Likes: 2
From: Hallsville, Tx.
When I firsr acquired my 1996 FLHR/I, I called Jamie at Fuel_Moto and he suggested an upgrade to a 1997 ECM. THe 96 unit is not programmable or flashable. As stated earlier I went with a RevTech DFO. It works, in that I haven't melted the motor down with lean conditions, but I don't know how optimal the tune is. 97Bagger, do you still have your ECM? Could you possibly post a picture of the "plug-in" ? I have a 97 ECM that I got off of ebay (for insurance) but it looks like it takes a totally different connector from the 96.