humming sound - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 12 (permalink) Old 11-13-2010, 02:42 AM Thread Starter
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Talking humming sound

Do your bikes make a hum hum sound at freeway speeds? kind of like a rhythmic hum hum ..not just a straight hum but more patterned. It doesn't do it all the time but when the bike is at a certain rpm or speed ...it seems like i hear the hum hum instead of just hum. Bike runs good otherwise. Just checking..it may just be what a bike sounds like.

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post #2 of 12 (permalink) Old 11-13-2010, 04:59 AM
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Do you know why it hums, because it doesn't know the words! Sorry, couldn't resist.

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post #3 of 12 (permalink) Old 11-13-2010, 05:36 AM Thread Starter
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That joke was so corney ..you could feed a million chickens...

2011 Suzuki VSTROM DL650 with ABS Purchased Jan 28 now with 39,000miles WRECKED JAN 12 ,2013
"To strive, to seek, to find, not to yield."
05 Vulcan 750 26,050miles *Traded in*
Ventura guards
MadStadt mount
Givi windshield/Heated grips
Backoff
Riderbeads
Givi 52 topcase
Pat Walsh Crash bars skid plate
OEM centerstand
Headlight modulator
Battery tender
Aquarium thermometer with forward probe mount
Admore LED Lighting/Givi E36N panniers
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post #4 of 12 (permalink) Old 11-13-2010, 08:58 AM
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Tires maybe?
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post #5 of 12 (permalink) Old 11-13-2010, 10:49 AM
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Quote:
Originally Posted by clock152 View Post
Tires maybe?
^X2 on the tires. I've heard car tires hum on the highway and every time it meant that they were about to go bad (i.e., belt separation). I don't know if the same applies to motorcycle tires, but check them to be safe.


Chris Glennon - Portland, OR
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post #6 of 12 (permalink) Old 11-13-2010, 12:34 PM
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I have heard the same on my bike also. A rymthic hum on a steady long run on a flat road. I was in the military and a lot of aircraft engines would do this, really do not think there is anything wrong with the bikes. Everyone of these bike seam to have their own little quirks.

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post #7 of 12 (permalink) Old 11-13-2010, 03:34 PM Thread Starter
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Whew! Thanks. I do check the tires regularly....

2011 Suzuki VSTROM DL650 with ABS Purchased Jan 28 now with 39,000miles WRECKED JAN 12 ,2013
"To strive, to seek, to find, not to yield."
05 Vulcan 750 26,050miles *Traded in*
Ventura guards
MadStadt mount
Givi windshield/Heated grips
Backoff
Riderbeads
Givi 52 topcase
Pat Walsh Crash bars skid plate
OEM centerstand
Headlight modulator
Battery tender
Aquarium thermometer with forward probe mount
Admore LED Lighting/Givi E36N panniers
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post #8 of 12 (permalink) Old 11-14-2010, 01:05 AM
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My previous bike would do an undulating hum, but only in 4th gear. Still runs great!

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post #9 of 12 (permalink) Old 11-14-2010, 11:10 AM
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post #10 of 12 (permalink) Old 11-15-2010, 09:51 AM
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It hums cause it knows whistling can be annoying! It does sound like tires to me. It may not be a bad tire, but it may be such a tiny bit out of balance that it makes this noise at a certain speed, where it starts an oscillation. My guess, of course...

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