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[springer82]

I just picked up a 2003 FXSTSI. Very nice bike. It is my first HD. I would like to make some stage 1 upgrades. Looking to improve the ignition sys. I looked at the HD page and found out that all the SE ignition module are for carb bikes??? Do I need to look at Power Commanders?? Also will Magecor wires have a bad effect on my electronics?? Thanks for your help

[JCourneyaP]

Welcome to the jungle Springer82.

You planning on swapping out the pipes and intake? Was this already done?

If not the carb may need to be re-jetted. Depending on what you do. The SE ignition module may be just a waste of money for you. No big bang for the buck.

Let us know your plans.

[springer82]

Well,,, Hi neighbor!!! My bike is injected. No carbs. Went to KY and picked it up two weeks ago Friday. It was 65deg. This is a good thing. Thank God it was not last week. That would have reminded me of home. The last owner/first owner put a stage 1 inj kit on it. Also some dumb slip on pipes. I have a set of V&H pipes that will be here tomorrow. I hope. By the weekend anyway. I want to do a few things this year and then next winter do a 95 upgrade on it. With the pipes and intake done I will look at the ingition sys. That should be good for this year. Thanks for the input. Stay warm.

PS: i'm next door. coon rapids

Bob

[JCourneyaP]

Hey Bob. We are right next door to each other. 65 Deg? I forgot what that temp is like. This winter has been sloppy and cold. Usally I ride a good part of the winter months. This year its been bleak. Seems just as the roads dry up from the cold it snows again.

Your pipes should go on pretty easy. Should not have to mess with the fuel mix since that was already done. I would hold off maybe on the Ignition module untill you do the 95 upgrade. I just don't think it would give you any seat of the pants horsepower ect.. Your call. Have some other folks that know a lot more about that fuel injection stuff. I run a carb on my 04 sporty. I also have Vance Hines short shots on my bike. Their tech center is helpful if you need to place a call. Treated me good anyway.

Enjoy a few more days below zero. I heard it will get up in the low thirties later this week. Chow for now...

[Buzz Kanter]

Welcome to the forum family and good luck with your new bike.

[evoKENevo]

Welcome aboard Bob
Others here will be able to explain the ECM stuff way better,than me. But for starters the bottom line is that EFI scooters require their AFR and IGN. to be computer controled/modified via one ECM type...whereas a Carbed bike's AFR is mechanically controled/modified (jets,needles,etc) and only it's IGN. is computerized via a different/simpler ECM type.

Meanwhile all I can tell you here about plug wires is that there's no significant performance gain to be had from changing them (alone) unless of course the orginal ones are defective...the wrong type for a given ECM can queer it's functions...and that there's an excellent AIM article about them in the Jan. '08 issue...as well as an in depth explaination of them at nightrider.com including a whole section on Magnecor applications.

[BlueBob]

Welcome to the forums... and to the family!

[clif02]

Welcome. We have some true experts here that will always give good advice. It's a great site to visit. Ride safe, Clif

[unclepsycho]

Howdy from California

[shovelmike]

Welcome Springer. Ditto what Evo said about spark plug wire change, nothing much to be gained there and as he indicated can cause problems. The stock ECM detects ionization across the plug gap indicating impending detonation and adjusts the timing to suit, a slight change in the resistance of the wire can give the ECM a false signal. The stock ignition puts out more spark than even a fairly well modified street engine needs...a lot of people are relieved of their hard earned money through marketing hype.