Technical question about strange noise...
Road Captain
Joined: Jan 2009
Posts: 643
Likes: 0
From: Vancouver
If it is the same clunk I am thinking about you are not the first one to experience it. You will find if you search this forum you will find a fix for the the dreaded steering stem nut clunk. On mine a little scuff of emery cloth under the nut and the updated torque of that nut and all is cured. Hope this helps. 
Cruiser
Joined: Jan 2009
Posts: 143
Likes: 0
From: New Mexico
Don't forget to pay close attention to the brakes, it is possible that something in that system like rattle clips or even mounting blots can cause a noise like you describe. While riding over a spot where you can duplicate the noise, try to lightly pre load the brakes one at a time and if the noise goes away then closely inspect that area. Good luck!
Outstanding HDF Member
Joined: Oct 2007
Posts: 3,450
Likes: 4
From: El Cajon Ca.
I had a problem like this before and I finally figured out that it was my shocks topping out. The wheel would drop into pot holes and the shock would extend all the way and top out. made a hell of a banging noise. I only found out after i changed out the shocks for better ones.
Outstanding HDF Member
Joined: May 2009
Posts: 2,932
Likes: 32
From: Broomfield, CO
I had a problem like this before and I finally figured out that it was my shocks topping out. The wheel would drop into pot holes and the shock would extend all the way and top out. made a hell of a banging noise. I only found out after i changed out the shocks for better ones.
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Road Warrior
Joined: Dec 2007
Posts: 1,437
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From:
Checked brake calipers and belt cover as well. Tried to rattle the gas tank, but it seems pretty well fixed.
Jumped up and down on the bike like a mad ape on meth, without any rattle. Both rear shocks and fork.
I'm narrowing this down to two main suspects: steering head and engine elastic support.
Suspect N° 1 right now is steering head bearing...
Jumped up and down on the bike like a mad ape on meth, without any rattle. Both rear shocks and fork.
I'm narrowing this down to two main suspects: steering head and engine elastic support.
Suspect N° 1 right now is steering head bearing...
Outstanding HDF Member
Joined: May 2006
Posts: 2,378
Likes: 1
From: Boise, Idaho
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Road Warrior
Joined: Dec 2007
Posts: 1,437
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Outstanding HDF Member
Joined: May 2006
Posts: 2,378
Likes: 1
From: Boise, Idaho
when the tank has fuel in it, it is pretty heavy so you might not be able to easily move it around. how i finally found the problem was to find a bump in the road that caused the clunk, then i ran back over the bump and squeezed the tank between my knees. this eliminated the clunk, so i knew then that the problem was with the tank mounting. i'd just tighten the two bolts, front and rear, and see if this helps.
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