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noise at 4000K

  • Thread starter Thread starter Anonymous
  • Start date Start date
A

Anonymous

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I recenty bought this 1983 GS 1100L. When I test rode it, I did not hear any noise. Later I started to push the bike a little harder. I noticed a loud ticking noise that sounded like it was coming from the right top side of the engine when engine speed was 4000K. The noise would occur in second gear and I think third gear too. I figured it was valve noise. If I accelerated past 4000K to 5000K and finally to 6000K I did not hear the noise. It may be due to other normal engine sounds masking the ticking noise. If I rev the engine in nuetral, I hear no ticking noise. There is no unusual noise below 4000K when in gear. Could the ticking noise be due to the engine being under load or perhaps some other component in the drive train? The bike has 12600 miles and seem to have good power. I plan to check the valve clearaces. The ower of the local bike shop said to make sure that I blow out any carbon on the valves before checking them since the measurements may change if I don't first. The noise is pretty loud and I would hate to push the bike with the noise. Has any one experienced this condition in the past? Comment are appreciated.
 
Re: noise at 4000K

The first thing I would check is the exhaust valve clearances on the 3 and 4 cylinders.

Earl

jonathan p keegan said:
I recenty bought this 1983 GS 1100L. When I test rode it, I did not hear any noise. Later I started to push the bike a little harder. I noticed a loud ticking noise that sounded like it was coming from the right top side of the engine when engine speed was 4000K. The noise would occur in second gear and I think third gear too. I figured it was valve noise.
 
when you lift the valve cover , check the speedo drive gear, might as well do the valve clearences regardless, at least then you will know they are right. check and re-torque the cam caps whilst you are at it.
Dink
 
:oops: This is a followup incase anyone checks this post. It turns out that the noise was due to a new windshield vibrating against a side reflector. That explains why the noise only occured at 4000 rpm. A little more experience and a lot of relief.
 
Cool. I was going to say that if you somehow manage to rev the engine to 4 Million RPM (4000K) I'd expect a bit of noise... 8O



:wink:
 
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