Something blocking me from installing slip on exhaust

[LDenton]

I bought an Arrow slip on exhaust for my 07 FZ6. I've been removing the stock silencer and ran into several snags. The one that has stopped me in my tracks is putting the link pipe on. I've added a photo of the connector that I need to put the link pipe onto, but it is blocked by a strange collar.

The stock pipe went around this collar, but the link pipe I have does not. It will only fit onto the bit of the pipe not covered by the collar. Has anyone else had this same issue and what did you do? Or can anyone tell me whether I need to remove this collar in order to fit the link pipe? It won't just come off, I think it will need to be permanently removed from the pipe.

Thanks for any answers.

[weasley]

That is the gasket that seals the downpipe to the link pipe. It will come off but will be destroyed in doing so. You may be able to put the new pipe on without a gasket if it is a tight enough fit, or you may need some sealant in there, assuming there's no room to get a replacement gasket in there.
____________________
Yamaha XJ600 | Yamaha YZF600R Thundercat | KTM 990 SMT | BMW F900XR TE

[Rogerborg]

Yup, just chisel / dremel / screwdriver that gasket off and clean up the pipe.

You might not need any sealant in there at all if it's a snug fit, but if you do, feel free to just slap bog standard domestic silicon sealant in there rather than springing for specific exhaust sealant. I prefer the silicon now, it doesn't harden and go brittle.
____________________
Biking is 1/20th as dangerous as horse riding.
GONE: HN125-8, LF-250B, GPz 305, GPZ 500S, Burgman 400 // RIDING: F650GS (800 twin), Royal Enfield Bullet Electra 500 AVL, Ninja 250R because racebike

[LDenton]

Thanks guys, makes me feel a little more confident that it needs to come off.

I am able to put the link pipe onto the small section of pipe that is not covered by the gasket. It suggests to me that it is a slightly loose fit, but not excessively; there is no resistance against the link pipe going on or coming off.

So do you think I will need a new gasket to create that resistance and make sure the link pipe doesn't just slip off?

Will the fittings that secure the silencer make sure the link pipe stays in place? If so, will I get away with putting sealant on to keep it sealed?

[weasley]

You need to play it by ear a bit. It depends how the link pipe is clamped to that pipe - is it just a large jubilee-type clamp? Is the link pipe cut at the end to accommodate some clamping/squeezing? Is it a rattle fit or a nice slide-on fit?

On mine the pipe slid on OK without a gasket and then was squeezed enough by the clamp that it made a tight seal (I could not pull the pipe off again) - over time this seal may improve as the exhaust lays down deposits along the pipe.

But as the Borg say, a smear of silicone will only make things better.
____________________
Yamaha XJ600 | Yamaha YZF600R Thundercat | KTM 990 SMT | BMW F900XR TE

[Rogerborg]

Might as well try it without any sealant and see, then slap in silicone, then upgrade to something really serious like a beer can shim if necessary.

The silencer on my Nazi Tractor just slips on and is held by a couple of springs. No gasket, no leaks, no worries.
____________________
Biking is 1/20th as dangerous as horse riding.
GONE: HN125-8, LF-250B, GPz 305, GPZ 500S, Burgman 400 // RIDING: F650GS (800 twin), Royal Enfield Bullet Electra 500 AVL, Ninja 250R because racebike

[LDenton]

Weasley - the link pipe does not come with a clamp (although I may be able to reuse the stock clamp) and does not have any cuts to accommodate clamping.

I shall have to take the plunge to hack away the old gasket and see how well they fit after. I just have a bit of trepidation about it because I won't be able to put the stock back on and I'll have to find a way to make the new one work.

Thanks guys, it really helps to have that extra bit of information to go by.

[Ben90]

When I fitted my Scorpion that gasket stayed inside the old exhaust rather than on the mid-section pictured. I just checked the stock part in the garage and it's in there.

The Scorpion then clamped right on top with a bit of B&Q silicone.

Does it not just slide off?
____________________
Yamaha FZ6 S2

[LDenton]

Ben - I wish it just slid off, that would have been lush!

It wasn't too hard to get off. I believe it may have been three separate gaskets or perhaps one gasket with three layers. I split apart the layers with a thin flat screwdriver, pulled the layers up a bit with some pliers and cut the wire threads with tin snips. Worked out fine once I'd gotten a rhythm going.

Once it was all off the link pipe fit on beautifully. Seems to be a perfect fit, I haven't even needed to add anything to make it tighter. Sounds tasty

Just need to put all the panels and parts back on when I get some free time. Cheers all!

Edit April 2017: Just for anyone looking into this thread, I never needed to do any further work to seal the pipe, it just worked and hasn't needed to be touched since.

[t121anf]

Normal bathroom silicone or high temp stuff?

What's best white, clear or anti mould?

[RhynoCZ]

USE A PROPER EXHAUST SEALANT!!!

It's cheap and you'll thank me later.
____________________
'87 Honda XBR 500, '96 Kawasaki ZX7R P1, '90 Honda CB-1, '88 Kawasaki GPz550, MZ 150 ETZ
'95 Mercedes-Benz w202 C200 CGI, '98 Mercedes-Benz w210 E200 Kompressor

[Rogerborg]

Why's that then?

[grr666]

People who haven't seen silicone bakeware and silicone oven gloves think it will melt.
____________________
Currently enjoying products from Ford, Mazda and Yamaha
Ste wrote: Avatars are fine, it's signatures that need turning off.

[Rogerborg]

I'm optimistic that we'll hear a specific, compelling, well sourced and verifiable reason not to use it.

It could happen.

It could happen.
____________________
Biking is 1/20th as dangerous as horse riding.
GONE: HN125-8, LF-250B, GPz 305, GPZ 500S, Burgman 400 // RIDING: F650GS (800 twin), Royal Enfield Bullet Electra 500 AVL, Ninja 250R because racebike

[1-up]

I used tin foil and bathroom silicone to re attach the VFR's exhaust, it's good for 250 degrees or something daft like that. Poundland for the foil and the silicone.

[Evil Hans]

[Rogerborg]