Yoshi muffler on 4-1 fits loose

[Shifty]

My bike came with a Yoshi 4-1. It does the job performance-wise but pretty rubbish in my opinion.

Main question though, I'm thinking it might have an incorrect back section/muffler on it, because the fitment is very loose - unless there's supposed to be a gasket or something? There's a gap of about 1mm, enough to hear a bit of a leak, and it can slip back and forth about 5mm.

Thoughts?

[Speedy1959]

If it turns out that there is NOT supposed to be a gasket then I would be tempted to cut a slit (or two) and clamp it..

[RickC]

No gasket on my TriOval it fits well but it is slotted. The Yoshy slip on is a nice pipe, a little better with after market single skinned headers.

[GSXKING]

Unbolt the muffler/link pipe and shift everything forward till it goes hard up against the thicker part bud. No gaskets they are a race system. 

[Tony Nitrous]

Unbolt the muffler/link pipe and shift everything forward till it goes hard up against the thicker part bud. No gaskets they are a race system. 

I agree.
Make sure it's fully in and butted up tight.

Plan B could be a couple of slots and a clamp.

Plan C would be a spot weld to hold it in place,
remove it from the bike and weld it all the way around.

I'd go with plan D and put my ear plugs in and ignore it.

[Shifty]

Unbolt the muffler/link pipe and shift everything forward till it goes hard up against the thicker part bud. No gaskets they are a race system. 

Have done that, it's loose enough that it moves back.

Might look at slitting the pipe and adding a clamp.

Also I noticed some people say you can't have a yoshi and centrestand, wondering if maybe my rear pipe is from a different bike hence it not quite fitting right...

[Shifty]

Yeah no option D, apart from sounding like a wet fart, there's enough gap to potentially create a venturi effect that will probably mess with afrs on the dyno with a tailpipe sniffer, rather get it sealed up nicely.

[Shifty]

It's actually a piece of shit in general, makes oil changes a little more annoying, collector scrapes with a pillion on bumpy roads, front of headers touch on driveways sometimes.

In saying that the performance is well worth it.

[GSXKING]

If you are in Brisbane @Shifty contact Peter at Pipemaster for a professional fix, he did a step down piece on the link pipe to fit a Pipemaster Muffler on Yoshi titanium headers. NO GAPS.