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USMarine6173
 Standard Member
102 Posts
Moline, Illinois
USA
Yamaha
V-Star 650
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 Posted - 06/20/2016 : 1:23 AM
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I went for a pretty long ride yesterday. And towards the end of the ride, I heard a really fast tempo high/low pitched buzzing sound coming from the front/disk brake side of the bike. It didn't matter what gear the bike was in or rpm level, the buzzing only occurred at 20 mph. The road surface was very flat/smooth.
I stopped the bike, checked for any loose cables/parts, and then proceeded back on my way. The buzzing still continued at 20 mph.
Any theories?
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greywolf
Moderator
1484 Posts
[Mentor]
Evanston, IL
USA
Suzuki
DL650AL2
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Posted - 06/20/2016 : 6:04 AM
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See if you can go for a ride in a low traffic situation and only use the rear brake. When you get back, see if a front disk is warm. You may have a dragging pad. That may be the case even if the disc is cold if the pad isn't dragging much. After a ride without use, it shouldn't be dragging at all so you can check for noise or feel after getting the front wheel in the air and spinning it.
Some drag is typical after brake use as the only things getting the pads away from the disc are the elasticity of the seal and high spots or slight warpage of even a good disk pushing the pads away. That's why it's important not to use the brake before the check. |
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scottrnelson
Advanced Member
6943 Posts
[Mentor]
Meridian, ID
USA
Honda
XR650L, 790 Adv R
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Posted - 06/20/2016 : 9:04 AM
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On some bikes you can hear the holes in the drilled brake rotors as they go past the brake pads. But only if you're not wearing earplugs. You should be wearing earplugs when you ride to protect your hearing.
I find that earplugs can mask a bunch of annoying little sounds on my bikes.  |
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USMarine6173
Standard Member
102 Posts
Moline, Illinois
USA
Yamaha
V-Star 650
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Posted - 06/20/2016 : 10:30 AM
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| It doesn't sound like it is coming from the brake pad. Just the front disk brake side of the bike. The buzz sounds more plastic than metallic. |
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rkfire
Advanced Member
1716 Posts
Stratford, CT
USA
Suzuki
Bandit
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Posted - 06/20/2016 : 12:51 PM
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| How about the speedo drive. Is it off the front wheel, and on the noisy side? Notice anything strange with the speedometer? |
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USMarine6173
Standard Member
102 Posts
Moline, Illinois
USA
Yamaha
V-Star 650
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Posted - 06/20/2016 : 4:46 PM
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I will check the speedometer next ride. Will also see if I hear it at the beginning of the ride/when the bike is relatively cold.
Will keep everyone posted. Thanks! |
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scottrnelson
Advanced Member
6943 Posts
[Mentor]
Meridian, ID
USA
Honda
XR650L, 790 Adv R
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Posted - 06/20/2016 : 6:12 PM
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| If it's not too hard for you to take the front wheel off, it would be good to check the speedometer drive for proper lubrication as a preventative step. They're generally pretty easy to put grease into. |
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Discussion Topic |
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Buzzing Sound Coming from Front of Bike