Question about Harley Davidson Harley-Davidson Motorcycle Desktop Telephone

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2003 F.I. Softail

When cold runs rough, and no reponse on throttle. Hot, runs perfect.

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Tempature sensor most likely but mapp sensor poss also $25 $30 apeice change both

Posted on Dec 30, 2009

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Thats how they run cold, you have to let it warm up a little. Harley EFI is not like a car. They probably need 5 miles of normal warm up before putting them through the paces.

Posted on Aug 10, 2009

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Sounds like a mapping issue with whatever f.i. add on you have. could also be the pintle sticking on the throttle body. take the air cleaner off, look at the inside of the throttle body. at the top there will be a little hole. that's where the pintle is. it retracts and expands for cold starting and hot idle as well. if you turn the bike on and off it should cycle. ( extend and retract ) if it doesn't then the pintle needs to be replaced.

Posted on Jun 11, 2009

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1 qt oil every 1000 miles


kev, check you have the right level on your dip stick, oil must be on upper mark when donk cold.also ensure you are running the correct oil weight for your donk.
engine may be running hot; which means one way oil can go missing is its being burnt.
also check your primary drive,clutch oil level ,not sure as i have 80cube evo, but you may find your oil in there due to bad oil seal internally. im no expert but these may be of help.
regards george

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Problem with charging system on 1993 softail every time i ride it have to charge battery for the next time have had new battery lights on dash but wont kick over is there spose to be any other wires to the...


Here is a few tests you can run. First with the bike off take a multimeter in VDC check the battery voltage at the battery. (should be at 12.5 VDC) If not first charge the battery. Second start the bike, with it running and multimeter again in VDC check voltage at the battery while slowly opening the throttle(should see between 13.2 and 14.5 VDC at the battery) If you have more then 15 VDC then you have a bad voltage regulator. If you have less then battery voltage from the first test. You may have a bad stator and/or a bad voltage regulator. Third test with bike turned off and multimeter in continuity. Place one meter lead into either of the two holes for your stator lead(coming out of the front of the primary drive case) the other meter lead to any good ground. If you get a tone or continuity then you have a grounded stator, and it has to be replaced before proceding any further with charging system tests. If you do NOT have continuity then check the wires from the voltage regulator running back to the battery for any breaks or chaffing, if none are found. I would have the battery load tested as well.Good Luck and thanks for usinf Fixya.com Let me know what you find please.

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Idle problems after throttle is closed fast.


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2004 HD roadking, FI.


had the same issue with an early twin cam that belonged to a buddy. he had this wierd kinda intake thing that looked like the intake with the round flaps that you used to see on a hot rod back in the day. I don't think it did anything but look cool to him.
but anyway it was crazy hard to warm up when cold. if you are starting this bike in an ambient of 40f or less it will take some time to warm up. which I don't understand because the twin cam runs hot like 220 plus. give it extra time to warm up in cold weather. might be nothing wrong with the bike... I mean maybe what your up against isn't a breakdown of the machine but poor engineering (WHO SAID THAT?) anyhoo I've seen it too and everything was tip top far as the HD cronies said

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