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post #1 of 10 (permalink) Old 09-24-2015, 11:54 AM Thread Starter
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Default Rumble/vibration

I bought a new 2014 XCT at the end of July.
At about 1000 miles I noticed a rumble or vibration at highway speeds (60-65MPH) but thought it might be the road surface as we were on a trip. Now at about 2000 miles the rumble starts about 40 MPH. Dealer did the 500 mile service. Tires are 40F and 42R. Tires still look like new. I checked the belt tension and got 38, 38, 39, and 40 which is a little loose. Same noise with clutch in or out but sounds louder on decel in gear. Yes I am taking it to the dealer but I'm wondering if anyone has any suggestions on what we need to look at.

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post #2 of 10 (permalink) Old 09-24-2015, 12:23 PM
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Hard to diagnose online but could be belt vibration as it is definitely a little loose at those measurements


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post #3 of 10 (permalink) Old 09-24-2015, 01:12 PM
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Does it smooth out on higher speeds?

Why would this change after 2000 miles? Did you make any type of adjustments anywhere?

Is there anything like underneath back fender rubbing on tire? Belt rubbing? Brake pads rubbing?
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post #4 of 10 (permalink) Old 09-24-2015, 01:53 PM
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Might have a problem with one of the tires
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post #5 of 10 (permalink) Old 09-24-2015, 02:26 PM
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Is it vibration or rumble? There two different problems. Which is it.

if you're going down the road and pull in clutch then your taking the belt out of the equation.

Do you feel the vibration in the bars or in the floor boards.

Check the wheels for missing weights.

Just cause the tires look good on the outside doesn't mean there isn't a lose cord on the inside of the tire.
Am guessing you have a bad tire

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Last edited by visionjohnny; 09-24-2015 at 02:28 PM.
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post #6 of 10 (permalink) Old 09-24-2015, 02:31 PM
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I've had three different tire Brands over the years start to rumble- 2 seperated and 1 developed a bubble! The 2 that seperated - you couldn't see anything until they were removed then - ugly inside!

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post #7 of 10 (permalink) Old 09-24-2015, 06:36 PM
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Take it to your dealer , let them sort it out .... It is fully covered and if your dealer is any good they will take care of it and treat you like a King at the same time .

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post #8 of 10 (permalink) Old 09-25-2015, 12:32 PM
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I also have a 2014 XCT. It's a bit on the noisy side. I have series of rattles that annoy the crap out of me. The service writer at my dealership of choice rides a 2014 XC and has the same issue. I'm sure I have one rattle coming out of the right speaker in the fairing. Another sounds as if it is coming from the shroud in front of the battery. I've tried to tighten up the lower fairings to no avail, in hopes of getting rid of a noise coming from them (yes I emptied them to make sure it wasn't something inside the compartment).

The noises I hear are very distinct at certain RPM ranges and they sound "plasticky".

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post #9 of 10 (permalink) Old 09-25-2015, 02:24 PM
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1) I like Vision Johnny's suggestion of pulling in the clutch, to see if that makes a difference... and to possibly eliminate the belt as the culprit.

2) A suggestion, as my guess would be out-of-balance tires: the dealer could add balance beads to the tires, which doesn't even require dis- and then re-mounting, as I understand it. I had a few tires put on by my nearest dealer, and they recommend balance beads, the service manager uses them on his bike, etc. -- so I let them. (I've since switched to Centramatics permanent balancers, but had no problems with the beads.)

These bikes have a habit of throwing off wheel weights, so adding beads would reveal whether the tires are the problem.

3) Of course, could be alignment issues -- forks or wheels, loose pinch bolts, that sort of thing -- but I'd guess that that's not very likely. And so I'd have them start with something else.

Cheers,

Bill P.

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post #10 of 10 (permalink) Old 09-25-2015, 02:33 PM
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Yeah, my bet it's the tires are out of balance.....

Let us know what you find out!


Good luck!
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