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Main Area => General GS500 Discussion => Topic started by: traumajunkie86 on May 15, 2014, 10:42:47 AM

Title: What is that sound
Post by: traumajunkie86 on May 15, 2014, 10:42:47 AM
I have been hearing a sound coming from the right side of the engine on the bottom towards that back (transmission?), I have a video if you can hear it. It kinda sounds like a v-twin but clunky. My buddy said its probably because the oil is just a little past the "F" on the dipstick, but I wouldn't imagine a little to much oil doing that. Thanks in advancehttps://www.youtube.com/watch?v=zztq_wH5wJo&feature=youtu.be (https://www.youtube.com/watch?v=zztq_wH5wJo&feature=youtu.be)
Title: Re: What is that sound
Post by: Nocluejoe on May 15, 2014, 11:16:54 AM
Sounds like a carb leak somewhere or the top of the carbs the rubber peice that goes up in down is making a lot of noise
Title: Re: What is that sound
Post by: traumajunkie86 on May 15, 2014, 11:21:40 AM
see what I hear is coming from the bottom, like a knocking sound.. I figured something was up with the carb because there is no hesitation but the rpms dont drop fast.  What rubber piece are you referring to?
Title: Re: What is that sound
Post by: traumajunkie86 on May 15, 2014, 11:35:51 AM
Could the knocking be the fact I have been using 93 octane and is that damage that I hear?
Title: Re: What is that sound
Post by: Atesz792 on May 15, 2014, 12:07:31 PM
Quote from: traumajunkie86 on May 15, 2014, 11:35:51 AM
Could the knocking be the fact I have been using 93 octane and is that damage that I hear?
Nope. Higher than recommended octane does no good, but I think no harm either (other than maybe some minimal loss of power while using it, but it certainly won't make your GS knock).
Title: Re: What is that sound
Post by: Gorilla on May 15, 2014, 12:08:48 PM
It could be.

adidasguy told me from the moment I got my bike running the first time to not use anything but lowest octane of gas. 87. He said our engines are not performance engines and thus cannot properly handle the explosive power of higher octane. He said it could cause knocking (noise) and higher octane didn't provide any benefit.
Title: Re: What is that sound
Post by: traumajunkie86 on May 15, 2014, 12:10:13 PM
Have you seen the video, coming from the lower right I think.. no shavings in oil and no loss of power
Title: Re: What is that sound
Post by: Shepa on May 15, 2014, 01:17:19 PM
Higher octane fuel is not "more explosive", it's just more resistant to self ignition, which almost never occurs in low compression-ratio engines such as GS500.

With higher octane fuel, the GS engine should work smoother/quieter, and with less posibility of misfire, but in general, it's a waste of money.


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Title: Re: What is that sound
Post by: traumajunkie86 on May 15, 2014, 01:20:02 PM
OK. So what could that sound be?
Title: Re: What is that sound
Post by: Shepa on May 15, 2014, 01:35:06 PM
Quote from: traumajunkie86 on May 15, 2014, 01:20:02 PM
OK. So what could that sound be?
Probably a clutch basket.

While the engine is idling in neutral, pull the clutch, and observe if there's a change in the sound you're hearing.



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Title: Re: What is that sound
Post by: Blueknyt on May 15, 2014, 07:20:52 PM
I am hearing alittle cam chain noise and possibly clutch basket rattle.  got to isolate the noise alittle better.  auto-stethiscope or even shade tree screw driver to the ear trick.   
Title: Re: What is that sound
Post by: traumajunkie86 on May 15, 2014, 07:24:43 PM
Is the cam chain noise something to worry about?