Exhaust Nuts- GONE! - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 8 (permalink) Old 05-13-2007, 08:29 AM Thread Starter
 
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Exhaust Nuts- GONE!

My wife was complaining that her bike "didn't sound right". So yesterday I geared up and was going to take it for a spin. I fire it up, and it sounds louder than normal. I look down at the left side exhaust where the header attaches to the engine, and put my hand down there, I can feel air pulsing out. I look closer- BOTH nuts that hold the pipe to the engine are completely gone! They must have vibrated off. No wonder it didn't sound right. The other day we were at a stop sign in an open area, and she gunned it, leaving me and my Suzuki C50 in the dust. When she decellerated it backfired real loud, so I imagine the nuts have been gone for a few days now.

I need to run down to the hardware store and get some replacemens. Does anyone know what the torque value should be for these? I don't want to do them too tight and crack something or damage a gasket. Yesterday I put a socket on the right side to make sure they weren't coming off, I was able to tighten them a bit but I didn't push it too hard.
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post #2 of 8 (permalink) Old 05-13-2007, 09:02 AM
 
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18 foot pounds is the spec listed in the Clymers manual, for the exhaust manifold nuts. You may consider getting a new crush gasket as well.
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post #3 of 8 (permalink) Old 05-13-2007, 01:15 PM
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Ah, new crush gaskets.....
I mistakenly ordered too many. If ya need a set (2 in a set) PM me.
$8, shipping included (in the US). They are the Harley ones, p/n 17048-98.


AKA: Tim & 'The Adventure Cycle' VROC #24567, NEVROC, SteelCity VROC


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Aim for the apex."

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post #4 of 8 (permalink) Old 05-13-2007, 02:15 PM
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I had one fall off my bike once to.
I replaces it and a new gasket and all has been fine.

Chad Falstad "Hawk"
Vroc #17649
2011 HD Ultra Classic "angel"
2001 Nomad 1500 Sold March 2012
2001 VN 750 "Sold June with 2008 with 21,000""Serinity"
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post #5 of 8 (permalink) Old 05-13-2007, 02:42 PM
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And to keep the new ones more secure (as Hyper once told me), use blue threadlock once you've got 'em torqued down.

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post #6 of 8 (permalink) Old 05-13-2007, 02:59 PM
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Quote:
Originally Posted by Crobins365 View Post
And to keep the new ones more secure (as Hyper once told me), use blue threadlock once you've got 'em torqued down.
Just a note:
The thread lock (Loctite) should be put on the threads before you put the nuts on.
The high temp version is the Loctite 246, and yes, it is blue.


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Last edited by hyperbuzzin; 05-13-2007 at 03:26 PM.
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post #7 of 8 (permalink) Old 05-13-2007, 08:32 PM Thread Starter
 
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Thanks for the replies everyone. I got some replacement nuts at Lowes- 76 cents for 5. They didn't have the decorative cap nuts that were lost. I torqued them down properly, we did about 80 miles today and they are all good. I'll use some loctite next time I check them out.

Now if we could only get this seat thing fixed. She had her seat chopped and it's just not right yet. The issue is the back end and how it locks down. We're thinking new fender rails that eliminate the mounts for the old tool box, and then the seat can be completely customized.
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post #8 of 8 (permalink) Old 07-20-2008, 06:12 PM
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Know this is on old post, but went out to start the bike this morning and I too was missing the flange bolts on the right side. :Q

Being the packrat that I am, just happened to have two bolts and lock nuts in the tool box. A little search on here, and the torque specs I need are an easy find.

As a new person here, just want to say thanks to all those that post the info so we can find it and get back on the streets.

Last edited by Scootergptx; 07-20-2008 at 06:13 PM. Reason: spelling
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