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Buell Forum » THUMPer Forum » Buell Blast Thumper Knowledge Vault » Engine - all topics related to the Motor » Archive through May 10, 2013 » Knocking by right knee « Previous Next »

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Lostsurfer1771
Posted on Tuesday, September 18, 2012 - 04:27 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Newb with another random question. Once in a while when i'm stopped at a light I'll feel a knock against my right knee (air filter?) and the bike will almost stop idling, then start right up again like nothing happened. anybody know what this is?
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Ezblast
Posted on Wednesday, September 19, 2012 - 03:15 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Loose boot? Plug wire?

(Message edited by ezblast on September 19, 2012)
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Lostsurfer1771
Posted on Wednesday, September 19, 2012 - 10:01 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

How would I check if it's either of those? Like I said I'm totally new to all of this but I'd like to learn as much as I can.
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Lostsurfer1771
Posted on Friday, September 21, 2012 - 10:19 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Bueller? Bueller?
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Swampy
Posted on Friday, September 21, 2012 - 09:35 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

LOL!

Engine noises can be a funny thing. Just today I was driving the ulysses to work, it was cold out. As the bike was idling I started hearing a knocking, up high by the front cylinder. I had replaced the rocker box gaskets last winter so I was concerned something was going wrong. the noise went away above idle but still sounded like a cylinder scraping! When I got home I was listening and really got my ear into it and isolated the noise to the upper steering head area, getting down on my knees and looking up I could see the horn vibrating wildly. When I touched it the noise went away. Not to tell me the horn was making the noise I would have said "no way" because I had investigated horn vibration after I first got the bike, and I thought I secured it when I upgraded my lights to HID but there it was making the noise.
Use a sounding rod on the engine, you can pinpoint noises that way.
Good luck, let us know what you find.
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