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Sportster Motorcycle General Discussion and Problems For discussing problems about your Sportster motorcycle that don't fit anywhere else.

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  #1  
Old 24th August 2011
Drevilmike77 Drevilmike77 is offline
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Default Vibration

I have an 03 1200 custom that I am getting a vibration at a cretin RPM. The vibration is so bad that it vibrates my gas cap and makes a annoying rattling sound. It only does it around cretin rpm range (around 30- 40 mph in 2nd gear) and then it comes out of it. any ideas. It sounds like is coming from my primary. It just started about 3 weeks ago and I had my primary chain adjusted with no help. Any Ideas?
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  #2  
Old 24th August 2011
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You only get a those speeds, strange should be getting it at every speed. that was frame mounted motors do, vibrate. I doubt you have a problem, just a frame mount.
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  #3  
Old 24th August 2011
Drevilmike77 Drevilmike77 is offline
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I have had the bike for 2 years and it has never done this before. I know the bike vibrates some but not like this. It only has 17K miles on it and I am not a real hard rider.
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  #4  
Old 24th August 2011
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checked all your engine mounts are torqued up to the right amount?
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Old 24th August 2011
Drevilmike77 Drevilmike77 is offline
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I will do that in the morning. It also will vibrate and rattle then you rev it and hold that RPM with out it moving....(sitting there in the kickstand).
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Old 24th August 2011
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Sounds like you lost, or have a loose, a bolt in one of the engine mounts.
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Old 24th August 2011
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Agreed. Check ALL your mounting bolts.
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Old 24th August 2011
Drevilmike77 Drevilmike77 is offline
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Thanks for sll the help. I will check all the bolts after work and let yall know what I find.
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  #9  
Old 24th August 2011
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What RPM? Check all fasteners first. Harleys have been know to vibrate.
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