Question about 2003 Harley Davidson FXDL Dyna Low Rider

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Vibration at 2900 RPM

I was riding my wife's (Rosebud) FXDL and noticed a vibration starting about 2500 RPM, peaking at 2900 and then dissipating by about 3500 rpm. Bike was new in April and had 4500 miles on it when she dropped it mid November. A few scratches on the saddle bag, front brake lever and exhaust heat shields. Bent the rear brake lever and front right peg support. Not a real hard hit but it did hit hard enough for a fractured leg. Took it to the dealer and had them replace the bag, rear brake lever and front peg. I plan to order the heat shields and replace them myself. Also asked the dealer to check the alignment of the front end, which they said they did. They also did the 5K checkup at the same time and the motor runs great. Picked the bike up and when I rode it I notice a vibration as described above. It seems to transmit through the pegs, not the handlebars. The vibration is present it in all gears and if you pull in the clutch it goes away. Took it back to the dealer and talked to them about it. We thought it could be a motor mount or alignment issue. They checked it out again and replaced the front motor mount. They also checked the link on top of the motor and said it was OK and in the proper alignment. Well on Saturday I went back to pick it up and the vibration is still there and not any different as far as I can tell. Talked to the service manager and he was suprised as they thought replacing the motor mount was the problem. They said they found a spot where it was rubbing so that is why the replaced it. They are going to look at it again this week and see if they can find the problem. I do not think they have a clue so I'm not very confident they can fix this. Now I do not ride this bike very often, but my recollection is that there was no vibration coming out of the pegs in the RPM range I described. You dyna riders out there agree with that or should I expect some vibration? Any thoughts or comments?

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  • Anonymous Mar 14, 2009

    I dumped my dyna twice in as many weeks (new rider) The third time I noticed a vibration at low RPMs I have not had it ro a mech as yet, but I think its motor mount. I'll let you know.. I have a great NOn Harley Mechanic. email is 2002 dyna low rider 10 k miles..

    If you call ask for Jim



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I have the same problem with my Roadking except it wasnt dropped. I did a full alignment of rear tire to engine, aligned the rear tire to front tire, aligned the engine and replaced the front motor mount. Nobody seems to have an answer, that I've talked to anyway. If you find a cure let me know, If I find one I'll let you know.

Posted on Nov 20, 2008

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I own a 2001 dyna low rider and it has never been dumped, and I have the same issue with the vibration at all different rpm's and all gears, but when i pull in the clutch all vibration ceases, I had replaced front motor mount thinking that was the problem and found myself just wasting about 90 bucks on a part i did not need. I am 90% sure that the vibration on these bikes is common and there is no need to worry nor fix anything just ride and enjoy it's meant to be there. (918) 928-9444

Posted on Feb 23, 2013


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