Interesting day. Little help please
If you have a voltmeter, test the voltage going to those circuits, especially at high RPM. If it goes way too high, then that's your culprit. If it is that, though, be careful that you don't blow more circuits doing tests.
if you happen to see this on your oil filter media and this inside your camchest you've found your answer. might not be a bad idea to change your inner bearings while your in there, put in some B148's torrington bearings.


The Stator theory is good, but check to see if you get the same symptoms on lower speed higher gear (instead of going 80 on 5th, go maybe 65 or 70 on 4th) , then you get engine cranking same RPM and if that happens then the theory is a good guess.
I once had this unexplained rattle at certain speed (can't remember it now) and the culprit was a toolbag attached to bottom of my front down tubes, that was half closed and the leather flapped , yep I am that dumb.
The fuse wiring is probably a good candidate for wire rubbing, with a lowered bike like yours, that is also a good guess
I am subscribing to this thread. would like to find out what you find in the end, my shotguns are being installed and I think I will be just as cool and maybe in as much trouble as you are now

Warning, the rest is an injured old man rant.
<start of safety rant>.
I did race and ride sport bikes for years, did some dirt riding too, Softails suspension , weight compared to braking powers is a very dangerous combination, I never got seriously injured on a sport bike, my biggest injury that put me 1 year in bed with 20% chance of ever walking was on my 700 pound Gorilla softail.
I am always shocked at the Engine upgrades people do without paying attention to 'breaking', since I got my bike I am concerned with three things
1 - Make it noticeable (loud horns (had air, now two electerical), LED Lights, reflective wear).
2 - Make it stop faster (Sport bike front brakes kit, stronger rear brakes, updated suspension front and back , making the bike as light as possible with as much alloy parts as possible).
3 - Make it handle better through better tire traction (Night Dragon proved to be the best compound for black wall and ME880 for WWW).
I wish there is a way I can add tubeless tires and ABS to my bike, but doing so will cost as much as buying a new one maybe.
<end of safety rant>.
Thanks for the advice
Last edited by rancid13; Apr 1, 2013 at 07:32 AM.
The Stator theory is good, but check to see if you get the same symptoms on lower speed higher gear (instead of going 80 on 5th, go maybe 65 or 70 on 4th) , then you get engine cranking same RPM and if that happens then the theory is a good guess.
I once had this unexplained rattle at certain speed (can't remember it now) and the culprit was a toolbag attached to bottom of my front down tubes, that was half closed and the leather flapped , yep I am that dumb.
The fuse wiring is probably a good candidate for wire rubbing, with a lowered bike like yours, that is also a good guess
I am subscribing to this thread. would like to find out what you find in the end, my shotguns are being installed and I think I will be just as cool and maybe in as much trouble as you are now

If you have a voltmeter, test the voltage going to those circuits, especially at high RPM. If it goes way too high, then that's your culprit. If it is that, though, be careful that you don't blow more circuits doing tests.
The Best of Harley-Davidson for Lifelong Riders
if you happen to see this on your oil filter media and this inside your camchest you've found your answer. might not be a bad idea to change your inner bearings while your in there, put in some B148's torrington bearings.



https://www.hdforums.com/forum/softa...ensioners.html
I thought it was fixed, but it's returned - briefly - a couple times.







