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/cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> Chatter or stack of bowls noise /cgi-bin/YaBB.pl?num=1252374606 Message started by Ebikerman on 09/07/09 at 18:50:03 |
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Title: Chatter or stack of bowls noise Post by Ebikerman on 09/07/09 at 18:50:03 I have a noise that seems to be louder since I have gotten used to riding this bike ('06 S40 Boulevard, 4000 miles with stock muffler) Noise comes on at a steady speed or on acceleration. Not on deceleration. I have even heard it at idle when standing behind the bike. Strange as it may be, the noise seemed much less after about 15 miles of riding. Engine runs and accelerates good, just makes a sound like a chatter or a stack of bowls rattleing on each other when being carried. When standing behind the bike with it ideling, it seemed to come from the exhaust pipe, but can't be sure about that. It does not sound like spark knock or detonation that I have heard before in cars. Could it be from the cam chain? I heard that they are flaky. I don't want that tensioner droping down into the engine. Any help would be appreciated. Dan |
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Title: Re: Chatter or stack of bowls noise Post by bill67 on 09/07/09 at 18:56:24 I would try a good racing synthetic oil like Klotz,If your due for a oil change,Did you richen your carb at all yet. |
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Title: Re: Chatter or stack of bowls noise Post by verslagen1 on 09/07/09 at 18:57:16 adjust your valves |
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Title: Re: Chatter or stack of bowls noise Post by Ebikerman on 09/07/09 at 19:01:29 New oil change with Mobile 1 20W50 synthetic V-Twin and just had a valve adjustment. Noise does not sound like a click as too loose valves sound. We did the carb enrichment by thinning the white washer. The bike already had the idle mixture screw out about 2 1/2 turns. I found that it actually runs better with the idle screw in to 1 1/2 turns. Thanks, Dan |
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Title: Re: Chatter or stack of bowls noise Post by verslagen1 on 09/07/09 at 19:24:13 If it's the cam chain adjuster, put your hand or foot on top of the clutch cover over the oil filter. it will clack right there. |
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Title: Re: Chatter or stack of bowls noise Post by justin_o_guy2 on 09/07/09 at 19:51:22 3E2D3A3B24292F2D2679480 wrote:
+5 |
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Title: Re: Chatter or stack of bowls noise Post by thumperclone on 09/07/09 at 22:05:06 check where the belt guard tucks in behind the front pullly cover..theres a rub pad that is supposed to be there ive replaced(they fall off)it twice on my 06 |
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Title: Re: Chatter or stack of bowls noise Post by vtail on 09/08/09 at 16:36:07 Loose Baffles in the Muffler (Muffler Bearings LOL). torgue exhaust pipe clamp bolts @ 205 inch/pounds, tighten muffler clamps. |
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Title: Re: Chatter or stack of bowls noise Post by Midnightrider on 09/08/09 at 17:22:11 My speedometer rattles om acceleration. I'm planning on fixing it when its too cold to ride. The speedometer mainly rattles on acceleration. |
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Title: Re: Chatter or stack of bowls noise Post by Ebikerman on 09/08/09 at 18:42:48 I will check on the muffler clamps etc. and for a loose speedometer. Thanks for the new ideas. keep em coming if you can. I appreciate everyone of them.....Dan |
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Title: Re: Chatter or stack of bowls noise Post by verslagen1 on 09/08/09 at 21:14:35 I seem to forget the most simplist of things figuring we've talked about them enough, check this 1st and so on... speedo headlight mirrors tins belt covers pulley cover dam near everything When you hear the noise, place your hand on something, not a vice grip, no percussive adjustments, just rest it there and see if the noise changes. The headlight and speedo make really weird noises and they change depending on their mood. |
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Title: Re: Chatter or stack of bowls noise Post by thumperclone on 09/08/09 at 21:39:27 hedlight & or turn sig visors if u have them |
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Title: Re: Chatter or stack of bowls noise Post by Mattdw on 09/09/09 at 08:42:31 6E726F776A7F68797675747F1A0 wrote:
Did you buy this pad, or just use some rubber stock? What did you use? |
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Title: Re: Chatter or stack of bowls noise Post by Trippah on 09/09/09 at 21:14:20 if it' clacking both at speed and idle with you off the bike, this eliminates the drive belt. Did you do the valves? If not, did you leave the bike overnight with the folks who did it? |
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Title: Re: Chatter or stack of bowls noise Post by Ebikerman on 09/10/09 at 05:49:24 I left the bike overnight with the mechanic that did the valves. He knows to do the adjustment on a cold engine and has done valve adjustments for me before. More than twice. He asked me to ride the bike over to his shop and let him ride it again and listen, so I am. Thanks, Dan |
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Title: Re: Chatter or stack of bowls noise Post by Trippah on 09/10/09 at 09:59:52 Dan - I'd second or third the "check the exhaust system, esp baffles". Seems as though as the bike heats up, the noise reduces..that makes me think heated metal expanding and closing up tolerances..and since you and your mech know valve adjustments..the muffler connection and baffles seem the next most likely culprit. :) |
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Title: Re: Chatter or stack of bowls noise Post by thumperclone on 09/10/09 at 10:31:02 40495A45484C5942432D0 wrote:
Did you buy this pad, or just use some rubber stock? What did you use?[/quote] the oem one |
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Title: Re: Chatter or stack of bowls noise Post by Ebikerman on 09/10/09 at 15:48:24 Trippah, More and more, I think the sound comes from the muffler or from the exhaust exiting the muffler. Your idea seems very likely to cover the problem. Thanks, Dan |
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