HarleyTechTalk

Technical Forums => General => Topic started by: genzer on September 13, 2020, 08:35:24 AM

Title: Oscillating noise
Post by: genzer on September 13, 2020, 08:35:24 AM
On the highway cruise set on 75 wearing earplugs, as I'm already 3/4 deaf I started hearing a rather slow oscillating drone no other noises, nothing at slow speed that I could hear and nothing I Could feel, thoughts?
Title: Re: Oscillating noise
Post by: Ohio HD on September 13, 2020, 08:59:39 AM
I tried to use my mind reading power to get the bike model and year....     :SM:     but I didn't work.   

If it has a final belt drive, I'd look at the belt condition and tension. Then move to the wheel bearings. Both can give an oscillating sound. 
Title: Re: Oscillating noise
Post by: Hossamania on September 13, 2020, 09:06:06 AM
Does the sound change when the brakes are applied?
Title: Re: Oscillating noise
Post by: Ohio HD on September 13, 2020, 09:06:45 AM
I'll also add, look at the tires for irregularities. You haven't mentioned if you look at those or anything else, so I throw them out as a possible well.
Title: Re: Oscillating noise
Post by: genzer on September 13, 2020, 09:20:06 AM
My bad, 16 RG haven't had a chance yet to put it a on a jack,  Hoss, getting off the exit nothing noticed with braking. Belt tension felt good on the ground, tried moving the swing arm but again it was on the ground.
Title: Re: Oscillating noise
Post by: Hossamania on September 13, 2020, 09:32:16 AM
While riding and hearing the noise, squeeze the brakes, keeping speed, and notice if it changes. Do front and rear separately.
Title: Re: Oscillating noise
Post by: Jim Bronson on September 13, 2020, 09:43:32 AM
I've had that too from time to time on my '15 RK. All of the above are good, so I just ignore it.
Title: Re: Oscillating noise
Post by: genzer on September 13, 2020, 10:21:00 AM
All day rain today, tires have about 6k on them I'll check them out as well, the return trip back I took a different parallel road but speed limit was only 55 and no oscillating @62-65 :idunno:
Title: Re: Oscillating noise
Post by: choseneasy on September 13, 2020, 11:02:55 AM
Were you riding with another bike beside you?
I have experienced that sound riding next to a buddy when the motors match frequency/rpms. Kinda sounds like an oscillating drone.
Title: Re: Oscillating noise
Post by: genzer on September 13, 2020, 12:06:31 PM
Alone