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Message started by built2last66 on 06/19/11 at 14:14:17

Title: Changing the exhaust - easy or hard?
Post by built2last66 on 06/19/11 at 14:14:17

I need to change out my exhaust pipe that's rainbow colored for this one:

http://i55.tinypic.com/2zhp5s9.jpg

Is this something that I can do with normal tools, just dismount and remount the new one with the bike on it's kickstand or do I need a professional?

Title: Re: Changing the exhaust - easy or hard?
Post by drums1 on 06/19/11 at 14:39:26

2 bolts where pipe meets engine. 2 bolts to remove heat shield. 2 bolts at rear mount bracket. Piece of cake.

Title: Re: Changing the exhaust - easy or hard?
Post by Serowbot on 06/19/11 at 14:49:35

He'll have to get the muffler swapped ,too... that's one clamp and a big hammer.... ...or try pulling and twisting and cursing...
 ;D...

Title: Re: Changing the exhaust - easy or hard?
Post by built2last66 on 06/19/11 at 14:55:30


6375627F67727F64100 wrote:
He'll have to get the muffler swapped ,too... that's one clamp and a big hammer.... ...or try pulling and twisting and cursing...
 ;D...


I was really happy till I read this.. :(

Title: Re: Changing the exhaust - easy or hard?
Post by Howitzer on 06/19/11 at 15:09:18


7C6A7D60786D607B0F0 wrote:
He'll have to get the muffler swapped ,too... that's one clamp and a big hammer.... ...or try pulling and twisting and cursing...
 ;D...


What does the hammer do for you?  I remember people saying you gotta soak wd-40 in the joint for a few days, or something.

Title: Re: Changing the exhaust - easy or hard?
Post by Serowbot on 06/19/11 at 15:11:13

Ahhh,.. it's not always that hard...  Try disconnecting it before you loosen the pipe,... (wiggle n' twist n' pull, wiggle n' twist n' pull,... Cha' Cha' music helps...)

You'll probably need a new compression gasket on the manifold/pipe connection too.... costs $3 or $4 bucks...


PS... Cumon' Howie!,... you know what hammers are for... ;)...

Title: Re: Changing the exhaust - easy or hard?
Post by built2last66 on 06/19/11 at 15:17:43


6274637E66737E65110 wrote:
You'll probably need a new compression gasket on the manifold/pipe connection too.... costs $3 or $4 bucks...


Is this the part where I can get rid of the backfire/after pop? And also the decel popping...

Title: Re: Changing the exhaust - easy or hard?
Post by Serowbot on 06/19/11 at 15:19:46

... if it's leaking,.. you'll get lots o' pops...

Title: Re: Changing the exhaust - easy or hard?
Post by built2last66 on 06/19/11 at 15:33:46


3B2D3A273F2A273C480 wrote:
... if it's leaking,.. you'll get lots o' pops...


I only get pops when deceling, mostly going over 40 or 50mph.. sounds normal to me from what I've read.. and I see nothing leaking ever on the pavement (before driving or after back from a ride).. she's a 2005 s40 and I got her with 4k miles and promptly checked out everything in the maintenance section of the manual, except the spark plug but she starts up just fine.

And the Speed of Dark is me after I'm done customizing this sweet lil baby :)

Title: Re: Changing the exhaust - easy or hard?
Post by WD on 06/19/11 at 18:30:58

You won't see an exhaust leak on the pavement. The muffler to pipe joint seems welded when you try pulling the muffler, but air still finds a way in. Wanna know why and where? Factory moisture drainage hole. It isn't a one way valve, sucks in air between exhaust pulses at lower rpms. Pull the muffler, you'll see the hole.

Title: Re: Changing the exhaust - easy or hard?
Post by Wake51 on 06/19/11 at 18:37:05

The exhaust is very easy to take off as long as you have a basic set of wrenches. Best way to separate the muffler from the pipe IMO is to take the whole exhaust system off then do the squeeze and wiggle method mentioned above. I used a little liquid wrench and had a second person help pull to separate them This should also help prevent damaging the gasket.

As for the backfire pops, that's totally normal with a stock bike. It's not detrimental in any way and is caused from running lean, its just that the bike isn't tuned as good as it could be. From what I've heard it's tough to completely eliminate backfire on the stock setup, some claim they have, others say they can get it down to a slight 'sputtering' sound. I've pretty much eliminated the back fire on mine, I added a Dyna Muffler, re jetted, and did a slight adjustment to the idle mixture screw. My bike still has that slight sputter and feel when deacceling, but it sounds healthy and normal, I would imagine it's just our big 650 single cylinder engine letting us know it's a Thumper and not a V-Twin.  8-)

As for the leaks described above, they are speaking about an exhaust leak. This means somewhere in your exhaust system exhaust fumes are leaking out at some place other than the end of the muffler. This will cause popping and back firing as well. You can generally find these by feeling around where the exhaust goes into the head of the engine or at the exhaust joint where it joins the muffler. If you feel puffs of air coming out, you have a leak. I believe there is also a 'candle method' that is more precise than the hand method. Make sure you don't burn yourself and good luck!

Title: Re: Changing the exhaust - easy or hard?
Post by Howitzer on 06/19/11 at 20:47:01


3E283F223A2F22394D0 wrote:
Ahhh,.. it's not always that hard...  Try disconnecting it before you loosen the pipe,... (wiggle n' twist n' pull, wiggle n' twist n' pull,... Cha' Cha' music helps...)

You'll probably need a new compression gasket on the manifold/pipe connection too.... costs $3 or $4 bucks...


PS... Cumon' Howie!,... you know what hammers are for... ;)...


The hammer is fo' imposing your will and laying down the law.  ;D

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