Having Trouble Finding A Ground For My Amp
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Joined: Jun 2013
Posts: 53
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From: Edgewood MD
Having Trouble Finding A Ground For My Amp
I installed the biketronics head unit and speakers and everything works fine. I bought a used amp, its the biketronics 454, and I get a hum from the speakers. No matter what source I use, it still hums. Only thing I can think of is my ground is bad.
I cannot seem to find the screw they use on the biketronics website. Does anyone now any other reason for the hum or what an acceptable ground would be?
I cannot seem to find the screw they use on the biketronics website. Does anyone now any other reason for the hum or what an acceptable ground would be?
Extreme HDF Member
Joined: Sep 2010
Posts: 14,744
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From: Phoenix '53, '88, '09 Big Twins
basic trouble shooting says that if the input to the amp is disconnected, and you have a hum with motor off, then you need a good ground- a ground not only gives the - power a place to go, but it provides shielding to the amp chassis from radio frequency interference.
so if clean...start motor...if still clean, then connect input to amp.
if dirty, ensure that the cabling for the amp inputs is shielded, do not run music cabling ( which is AC voltage) adjacent to motorcycle wiring which is DC power and can induce hum.
if wires have to cross, cross at right angles
mike
so if clean...start motor...if still clean, then connect input to amp.
if dirty, ensure that the cabling for the amp inputs is shielded, do not run music cabling ( which is AC voltage) adjacent to motorcycle wiring which is DC power and can induce hum.
if wires have to cross, cross at right angles
mike
Last edited by mkguitar; Feb 8, 2014 at 04:45 PM.
Cruiser
Joined: Apr 2013
Posts: 228
Likes: 15
From: Waynesboro Va
Remove the right side cover. Tucked up near the frame their is a bolt already there that you can un-do and put your ground wire on the bolt then tighten it back down.
Just fish the wire from the top down. Should only have to remove the seat and right side cover.
Hope that helps.
Just fish the wire from the top down. Should only have to remove the seat and right side cover.
Hope that helps.
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