View Full Version : "Yowling" the dealer can't/won't identify
25th December 2006, 06:28
My '07 1200R with @ 3000 miles on it has an intermittent YOWLING ( WAH- WAH-WAH) noise that becomes especially noticable after it's warmed up and ridden at speed for 8-10 miles. You can really hear it if you're riding between houses, next to a sound wall, etc, but you can hear it just running down the road.
It's present at any speed, under any or no load. I even shut it off and the noise continued. Still present with the clutch pulled in or let out.
I can't tell for sure, but it sounds like a bearing or belt noise (tension is correct per dealer), but I sometimes think I can "feel" it thru the ham can. Is there a "belt dressing" that can be used like on fan belts?
It was present before the NRHS offset Hurrican A/C and SE muffs.
Of course the damn thing won't make the noise when I'm at the dealer and they say they can't hear it when they ride it.
HELP. It's beginning to get to me. Any ideas?:frownthre
25th December 2006, 06:44
I kinda hear the same thing on my 06 1200C, comes and goes and kind feels like a slight vibration,although mine is moast noticable at low RPM'S
25th December 2006, 06:59
Definitely more noticable at lower RPM's. Any thoughts as to cause?
25th December 2006, 07:00
I even shut it off and the noise continued. Still present with the clutch pulled in or let out.
By that I assume you're letting it coast when you "shut it off". If that's the case and you're in neutral, I'd check the belt alignment. Somewhere in here is a method of checking with a laser. You'll have to do a search to find it. You also might want to double check the belt tension while you're at it.
When you find the problem, let us know.
25th December 2006, 07:16
Wd40 works pretty good for squeaks,if your belt is rubbing the walls a little. I have a friend who had a squeaking problem after changing to a chrome Rear Wheel Pulley he tried everything and WD40 seemed to work the best and made less mess than other stuff,but now he has to spray a little before every ride.
25th December 2006, 07:17
That reminds me of an experience I had back in the 60s. I bought a Buick Roadmaster that had a very noticable whining sound. I took the saleman for a ride and he kept saying... "I don't hear a thing". After about ten minutes of that crap I pulled over to the curb, looked that SOB in the eye and said. "Listen friend. I'm not gonna play this game. Either you're stone deaf or a friggin liar and I'm running real low on patience". As I pulled back into traffic, he looked over at me and sheepishly said... "oh, you mean that sound?"
Good luck and keep us posted.
25th December 2006, 11:16
You may want to check the primary chain tension
25th December 2006, 12:06
Sounds like the final drive belt is too tight. Even adjusted to factory specs. the final drive on my '05 'yowled' until I loosened the axle adjusters 1/4 turn. It didn't make any noise untill warmed up.The final drive belt gets tighter as it warms up. The final drive adjustment tool gets it close, but it's waaaaay tooooo tight. My Ultra is adjusted to factory specs. and the belt is waaaay looser than my Sportster.
25th December 2006, 12:19
I read somewhere on here, powdered graphite on the pulley lubricates it. I would reckon that its better than WD40 which is oil, that in the long term may damage the belt.
25th December 2006, 13:34
OK, I can't resist, it's Christmas....... As any reputable Stealership would say, "Oh, it's a Harley, they all make that noise" ha ha ha ha ha ha.......
25th December 2006, 14:30
Sounds like the fuel tank relieving pressure....
25th December 2006, 16:07
Are you saying my Sportie has gas?
Or if you're serious, should I be looking for a crimped vent or what?
25th December 2006, 16:15
Only when bike is moving though right ???
25th December 2006, 16:35
My experience with an 05/1200C is: Similar noise to the one described. Belt tension was at or slightly below spec. Noise started after bike was washed/ detailed by the Dealer.
The cure was to clean the belt and pulley with dish washing soap (no wax) and to clean the outer edge of the belt with denatured alcohol. Noise gone.
I think it was the wax in the car wash soap that they used when they washed the bike after service.
25th December 2006, 16:57
Yep-only when moving
25th December 2006, 21:35
The belt does tighten a little when it gets wqarm. Mine made noise until I loosen it more than what the factory calls for. Noise then went a way.
25th December 2006, 21:40
OK, To be more specific, mine seems more prominent after its been ridden about 10 minutes (warmed up) only lasts for about 2-3 seconds and most noticeable when I'm coming to a stop. Kinda feel/sounds like a vibration kinda thing. (an old desk being scooted on the floor) Clutch, no clutch, it doesn't seem to matter. I thought It may have been the front brake caliper or loose tripple tree. Hmm don't know . But there is something there that bugs the s--t out of me. Other than that the bike is a dream.. 1200C taxes paid
26th December 2006, 02:41
Bugs the s:censor t outa' me too. The noise I'm hearing should not be there!
Does anyone out there know: Can you loosen the axle nut w/o removing the e-clip? Also is it a 1 3/16" nut? Do you need to have the rear wheel off the ground before loosening the adjuster nuts or can you just put upward pressure on the belt to move it then retighten the axle nut? Manual's not too clear here.
26th December 2006, 04:26
The brake pads in these bikes can vibrate and rattle under no or little load. Does the noise stop when you apply the brakes slightly?
26th December 2006, 07:38
You know that could be it. Doesn't seem to do it when braking, just when decelerating or should I say when not accelerating. (did that make sense?) Good thought T.C. I'll take note.
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