Tropic traveler
Member
Posts: 3117
Livin' the Valk, er, F6B life in Central Florida.
Silver Springs, Florida
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« on: November 21, 2011, 07:25:22 PM » |
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About a month ago my '97 developed a faint high pitched "tweet". It seems to be coming from the right side of the bike but that may just be from the sound bouncing of walls, barriers & such. Also my hearing is better on the right.  Anyways, it's not brakes because it does not go away when the brakes are applied & it is definitely speed related. It tweets faster as the bike picks up speed until road & engine noise drown it out. Not coming from the engine. Wheel bearings? U-joint? Speedo cable? Rear pumpkin? U-joint replaced at 100K with a 25K mile used one. Wheel bearings replaced at 78K. Bike has 111K now. It does seem to be getting slightly more pronounced but it is still smooth as silk & shows no other noises. I've put about 2K on since I first heard the tweet. Anybody else experienced this odd tweeting? ???  |
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'13 F6B black-the real new Valkyrie Tourer
'13 F6B red for Kim
'97 Valkyrie Tourer r&w, OLDFRT's ride now!
'98 Valkyrie Tourer burgundy & cream traded for Kim's F6B
'05 SS 750 traded for Kim's F6B
'99 Valkyrie black & silver Tourer, traded in on my F6B
'05 Triumph R3 gone but not forgotten!
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DFragn
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« Reply #1 on: November 21, 2011, 10:43:11 PM » |
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If it stops when you disengage the clutch. Your Master Cylinder Slave Pin needs some grease! fiche show 2 slave pins @ #17, but there's only one in there. Easy to do.  |
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« Last Edit: November 21, 2011, 10:49:15 PM by DFragn »
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PhredValk
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« Reply #2 on: November 21, 2011, 11:24:39 PM » |
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Constant squeal or chirp under certain circumstances? If constant, could be a bearing, but I'd check vacuum hoses and exhaust/ intake seals. Squeals would indicate air leaks, chirps would indicate bearings/dirty springs.
Fred.
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Growing old is mandatory, growing up is optional.
VRCCDS0237
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Tim H
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« Reply #3 on: November 22, 2011, 04:04:47 AM » |
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About a month ago my '97 developed a faint high pitched "tweet". It seems to be coming from the right side of the bike but that may just be from the sound bouncing of walls, barriers & such. Also my hearing is better on the right. Anyways, it's not brakes because it does not go away when the brakes are applied & it is definitely speed related. It tweets faster as the bike picks up speed until road & engine noise drown it out. Not coming from the engine. Wheel bearings? U-joint? Speedo cable? Rear pumpkin? U-joint replaced at 100K with a 25K mile used one. Wheel bearings replaced at 78K. Bike has 111K now. It does seem to be getting slightly more pronounced but it is still smooth as silk & shows no other noises. I've put about 2K on since I first heard the tweet. Anybody else experienced this odd tweeting? ??? You're not alone. You describe it much better than I could have. I thought it sounded something between a squeak and crickets. It's only at higher speeds, and I also hear it from the right side of the bike. I'm watching this thread closely. |
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Tropic traveler
Member
Posts: 3117
Livin' the Valk, er, F6B life in Central Florida.
Silver Springs, Florida
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« Reply #4 on: November 22, 2011, 04:49:07 AM » |
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It's constant but it's an alternating high/low pitch. Clutch action doesn't change it, heard only when the bike is rolling regardless of gear. I'm sure it's there when I'm going faster but it's faint enough to be drowned out by the engine & road noise. I guess that means it's most likely in the wheel area. ??? Could be the driveshaft spinning? It's in harmony with the roll of the bike, not the engine speed.
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'13 F6B black-the real new Valkyrie Tourer
'13 F6B red for Kim
'97 Valkyrie Tourer r&w, OLDFRT's ride now!
'98 Valkyrie Tourer burgundy & cream traded for Kim's F6B
'05 SS 750 traded for Kim's F6B
'99 Valkyrie black & silver Tourer, traded in on my F6B
'05 Triumph R3 gone but not forgotten!
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BnB Tom
Member
Posts: 1708
Where'd old times go?
Frisco, TX
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« Reply #5 on: November 22, 2011, 05:10:23 AM » |
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Another member suffered with those symptons and discovered if he got up to a fast walking speed (or downhill), put it in neutral, it only occured when in a slight turn in only one direction.. turned out to be front wheel bearing.
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thewoodman
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« Reply #6 on: November 23, 2011, 08:16:43 AM » |
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Funny that I'm experienceing the exact same sounding tweet-squeek. It is wheel related, sounds like the rear, but hard to localize. Under power or coasting changes nothing / sound gets drowned out at highr speeds. Brakes have no effect. Showed up after changing rear tires before a 2000 mile trip, but not until our return.
I've had it on the lift to no avail. I seems likely that it's rear wheel bearing related, but it hasn't gotten loud enough to annoy me yet. I might change out the rear bearings just because it would pi$$ me off to take the rear end apart, find nothing, reassemble it and find that the tweet was still there. I'll stay close to home until I find the solution.
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 The first step in getting somewhere is deciding that you are not going to stay where you are. TheWoodMan |
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Dirty Dave
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« Reply #7 on: November 23, 2011, 06:48:03 PM » |
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Don't rule out vacuum hoses. I had a split in a hose that chirped quite loudly at times. Quite embarassing when trying to look cool at a light.  |
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Tropic traveler
Member
Posts: 3117
Livin' the Valk, er, F6B life in Central Florida.
Silver Springs, Florida
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« Reply #8 on: November 23, 2011, 07:49:26 PM » |
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Funny that I'm experienceing the exact same sounding tweet-squeek. It is wheel related, sounds like the rear, but hard to localize. Under power or coasting changes nothing / sound gets drowned out at highr speeds. Brakes have no effect. Showed up after changing rear tires before a 2000 mile trip, but not until our return.
Exactly the same symptoms. It's been about 7K since a rear tire change. I have gone on a 1,000 mile trip since the tweeting started and a total of about 2K since I first heard it. I do suspect rear bearing(s) as the culprit but the tire is nowhere near worn out so I'm not keen on tearing it down just yet. Also I still haven't received the new U-joint I ordered from HDL yet {backordered} that I wanted to have on hand just in case. I guess I'll just keep on riding until I get the time & motivation to check it out.  |
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Logged
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'13 F6B black-the real new Valkyrie Tourer
'13 F6B red for Kim
'97 Valkyrie Tourer r&w, OLDFRT's ride now!
'98 Valkyrie Tourer burgundy & cream traded for Kim's F6B
'05 SS 750 traded for Kim's F6B
'99 Valkyrie black & silver Tourer, traded in on my F6B
'05 Triumph R3 gone but not forgotten!
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PhredValk
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« Reply #9 on: November 23, 2011, 08:34:36 PM » |
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The solution is much easier on an Interstate. Turn up the volume  If you can have a friend with a stock exhaust (or a Wing) ride along side, he may be able to help isolate the noise; front, back, right, left. It would take longer, but bungeeing a tape recorder to various locations on the bike could help find at least where it's coming from. If it's a vacuum leak, taking the time would be OK. If it's a bearing or drive-line issue, there is some possibility it could go with catastrophic results far from help. Be safe, Fred. |
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Growing old is mandatory, growing up is optional.
VRCCDS0237
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YoungPUP
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« Reply #10 on: November 24, 2011, 09:31:03 AM » |
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remember the dust ring on the Diff being the cause of this type of noise for someone a while back. jack it up and give the rear wheel a spin.
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Yea though I ride through the valley of the Shadow of Death I shall fear no evil. For I ride the Baddest Mother F$#^er In that valley!
99 STD (Under construction)
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