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Old Sep 9, 2010 | 02:44 AM
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Default Engine noise

Had the Fat Boy serviced (5000 mls) in July, the bike runs great but on acceleration I get a metal tinking sound ( like two coins being tapped together ) along with the sowing machine sound, I's reminiscent of a car with tappits that need adjusting. I've checked on the forum but can't find a real answer, do the 96B engines need the push rods adjusting as the tappits are hydraulic and should'nt need much attention, does anyone else get noise.

Reddog GB
 

Last edited by reddog8145; Sep 9, 2010 at 02:47 AM.
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Old Sep 9, 2010 | 03:41 AM
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from what i read most everyone gets that sewing machine sound on stock motors mine does it too.
 
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Old Sep 9, 2010 | 04:21 AM
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normal..mine sounds like a sewing machine also.......
 
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Old Sep 10, 2010 | 02:38 AM
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Thank's for the reply's guys, the sowing machine noise I can live with its the dam tinging noise thats driving me mad, I dont recall it doing it before the service, however I was focused on an oil leek at the front of the engine, a broken speedo and peeling chrome on the instrument panel, I'm probably being paranoid. Thank's again.

Reddog GB
 
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Old Sep 10, 2010 | 04:54 AM
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I've got about 18,500 on mine, and I've had a light noise similar to what your describing for some time now. It could be a little bit of a rocker arm noise, but I've been leaning toward the damn primary. My primary has been noisy as hell since day one, I'm guessing because of the auto tensioner setup. I got to the point I just stopped worrying about it.

My sewing machine got a lot louder too after the cam install.

Before the cams I had a PCIII and did have a spark knock issue for awhile. I only noticed it under a pretty good load, and at high rpm. A little tweaking of the spark advance cured that. Gas is crap these days.
 
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Old Sep 10, 2010 | 06:39 AM
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Might be stupid, but had this years ago on my FXRs ... drove me up the walls. Turned out to be a loose heat shield on the front header pipe.
 
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Old Sep 10, 2010 | 07:32 AM
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under acceleration sounds like it might be pinging.
 
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Old Sep 10, 2010 | 08:00 AM
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Originally Posted by todd-67
under acceleration sounds like it might be pinging.

My thought as well.
 
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Old Sep 10, 2010 | 10:24 PM
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its pinging. the only way i could get rid of it was to retard timing 3 deg accross the board on my 06 dyna.
 
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Old Sep 10, 2010 | 11:15 PM
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Try some octane boost.
 
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