If you are thinking about an 07 Touring model then go to the Primary/Transmission/Driveline/Clutch forum and read the thread about the tranny noise.

 

That's OK, I'm still thinking of one.

 

This from the MoCo tech tips to dealers:



TT258 – August 9, 2006

Primary Drive / Starter Noise Complaints

Several dealers and customers have commented about a “clunking” noise coming from the
primary housing during start up. Most dealers suspect a loose compensator because the
noise seems to come from the front of the housing. Customers tend to associate it with a
starter issue like improper starter drive engagement into the clutch’s ring gear. In fact the
condition they are noticing is what is referred to as “Starter Knock”. This is a normal sound
and condition for all 2007 Twin Cam models.
Changes in the primary drive system increased the diameter and inertial effects of the
rotating components (clutch and sprocket assembly, ring gear, and engine sprocket). Also,
the engine control system is calibrated to start the engine as quickly as possible (short crank
to run times) and to run up to the predetermined engine idle speed as quickly as possible to
provide very positive starting.
Because the engine fires and then runs up to speed very quickly, there is a large torque input
and instantaneous speed differential between the engine and spring loaded compensator
mounted between the engine and the driveline. The compensator is there to dampen the high
torque spikes inherent in a large displacement V-Twin.
Because of the increased inertia in the rotating components in the driveline, their rotational
speed cannot increase as fast as the engine, so the springs in the compensator momentarily
bottom and results in the sound that you hear.
The same sound exists in the 2006 Dyna models, but to a lesser extent. The increase in
displacement to 1584cc increased the torque spike and speed differential in the 2007’s and
causes the sound to be more noticeable.
There is no damage associated with the compensator bottoming.

Identifying characteristics of this condition:

1. It may be intermittent, as it is dependant on the start up conditions and how quickly the
ignition and engine RPM occurs.
2. It will be a single event. Once the starter is disengaged or the compensator is loaded
the sound will stop, unlike a loose sprocket assembly.
3. The condition may be more noticeable on Touring models due to the shorter primary
drive (shaft center to center distance) and associated shorter chain run. The extra
body parts like fairings and saddlebags also tend to reflect powertrain sounds upward,
towards your ears.

 

I hear it now and then like a kickback when it starts, man it runs good though

 

thanks, I can adjust to noise if I have a reason for why its there and its not a defect.

 

Yeah the other 99% of posts are 97-06's...
Think I'll keep my 07...

lp

 

Heck.... before you guys with the 07's know it, you won't be able to sleep at night without a blender shreading pennies in the background!

 

Are you thinking about an 07 Touring model?



UHHMMMMMMMMM!!!! NO!!!!

 

I love the sound. It's a HARLEY! Hell, we all like loud pipes, what's a little clunk or wining every once in awhile? My old lady does it and I still KEEP her. Lord knows she cost me more then my Harley. Ha!

 

Hell yea i am thinking about it....thinking they should hurry up and release my SE Ultra......I will put up with a little noise just to have a 110 with a 6. I put up with starter noise on my old cuda with a 440, and I loved that car. So I am not worried.