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Main Area => General GS500 Discussion => Topic started by: vtlion on December 23, 2003, 07:14:21 AM

Title: Exhaust Issues... need some advice.
Post by: vtlion on December 23, 2003, 07:14:21 AM
Hey folks.

Lately my GS has been sounding a little bit louder in the higher revs (over~5000 rpm).  This morning I think I observed the source of the problem.   In that short period of time right after startup that the exhaust is visible, I noticed a small stream escaping from the upstream side of the can.  I hunkered down under the exhaust to have a look, and sure enough... ther's a tiny (~2-3mm) hole in the exhaust.  It looks like a wear issue... nice smooth edges, almost a perfect circle.  Im pretty sure nothing catastrophic happened.  

so is there anything i can do about this?  Are there sealers I could try?   The bike just broke 10,000 miles, so I was planning on getting another season or two out of this pipe.

also... the guy I just bought the R6 from is throwing in his stock pipe with the deal.  Any thoughts on whether or not I could get that to fit on the GS?

peace.
Title: Exhaust Issues... need some advice.
Post by: scratch on December 23, 2003, 08:28:19 AM
Is it the little hole that shoots straight down from the pipe? That's normal, that's supposed to be there; I have that on my bike, also.
Title: Exhaust Issues... need some advice.
Post by: vtlion on December 23, 2003, 08:41:54 AM
so what else could be causing the increased noise above 5k?  the header bolts are tight, and I haven't observed any other exhaust leaks.
Title: Exhaust Issues... need some advice.
Post by: alerbaugh on December 23, 2003, 08:59:22 AM
thanks for the hole info scracth.  I was wondering about that.  There is always a mist that pours out of that on cold mornings when I rev it while warming up.  Could that be a bad thing or just normal?
Title: Exhaust Issues... need some advice.
Post by: luke1645 on December 23, 2003, 09:04:46 AM
normal ........ thats the hole that lets water out so it doesnt rust your pipe
Title: Exhaust Issues... need some advice.
Post by: scratch on December 23, 2003, 09:18:19 AM
Quote from: vtlionso what else could be causing the increased noise above 5k?  the header bolts are tight, and I haven't observed any other exhaust leaks.

What does the sound sound like?
Title: Exhaust Issues... need some advice.
Post by: vtlion on December 23, 2003, 03:04:22 PM
it just gets louder than crap very abruptly between 5 and 6krpm.  It actually sounds pretty good if you asked me, which is to say, it doesn't sound like the exhaust fell off, just like it opened up.

also, vibrations increase significantly.  Mainly I feel it in the footpegs... not so muchin the handlebars.


:dunno:
Title: Exhaust Issues... need some advice.
Post by: The Antibody on December 23, 2003, 04:22:34 PM
Perhaps the mice finally moved out. hehe.

No clue bud

 -Anti
Title: Exhaust Issues... need some advice.
Post by: alerbaugh on December 23, 2003, 09:08:01 PM
Hey the hole serves the same purpose as the one in my head.
Title: Exhaust Issues... need some advice.
Post by: scratch on December 24, 2003, 11:13:09 AM
Sorry, I hadn't replied yesterday, I got busy at work.

If I remember correctly, there are others that get that buzziness in that rpm range as well, so I'm hoping that it's normal. Your bike probably just got broken in, and now she'll be like everybody else's. I want to try to find that thread, though...

Other than that, I don't know...

I just hope everything is alright. The bike runs fine, ya? If so, it's probably normal.
Title: Exhaust Issues... need some advice.
Post by: scratch on December 24, 2003, 12:32:26 PM
When was the last time you had a valve adjustment?
Title: Exhaust Issues... need some advice.
Post by: scratch on December 24, 2003, 12:39:13 PM
Also, check for loose parts.

Here's all the threads regarding the buzziness and vibration, including one initiated by yourself at the bottom:

http://www.gstwins.com/forum/viewtopic.php?t=3575&highlight=buzz

http://www.gstwins.com/forum/viewtopic.php?t=1973&highlight=buzz

http://www.gstwins.com/forum/viewtopic.php?t=4285&highlight=buzzy

http://www.gstwins.com/forum/viewtopic.php?t=5189&highlight=vibration

http://www.gstwins.com/forum/viewtopic.php?t=1802&highlight=vibration

http://www.gstwins.com/forum/viewtopic.php?t=1240&highlight=vibration

http://www.gstwins.com/forum/viewtopic.php?t=1102&highlight=vibration
Title: Exhaust Issues... need some advice.
Post by: nicebelair on December 24, 2003, 03:21:12 PM
hey my bike gets loud too when i rev it! and it got louder when i put a yoshi system on! what the heck is going on :lol: hahaha just messin with ya'll :mrgreen: