Sealing exhaust collector box to downpipes

[Nipedley]

Hi guys

Trying to fit a new collector box on my 1989 VFR750 (RC24). Previously it had the Motad 2 into 1 silencer fitted straight onto the downpipes

I've bought from david silver spares the gaskets they carry for that part number which is a repro item I believe. They're the graphite kind. Problem is, the collector box won't fit with the gaskets on - they just get torn up. I tried gasket on the pipe then fitting the box, and gasket in the box to fit on the pipe and both ways they get shredded. I've gone through 4 of them now (2 sets) and can't get it fitted on

Is there anything else I can use to seal these up, or some kind of trick to it ?

Many thanks
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CBR600 (1988) | GS500 (1989)

[Nobby the Bastard]

[ThatDippyTwat]

[Islander]

The cheap ordinary stuff does the job

[ThatDippyTwat]

[RhynoCZ]

Go to your local auto parts shop and buy proper exhaust sealant, they sell it even in small tubes and it costs next to nothing. I 100% guarantee it will work and the exhaust won't leak, ever.

Or just waste your time and money experimenting with silicone.
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'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

[Nobby the Bastard]

[RhynoCZ]

[ThatDippyTwat]

[RhynoCZ]

[Islander]

[Suntan Sid]

Regarding common or garden silicone sealant, it works very well.
I used it to seal the joints on my DRZ400, it worked fine, especially when you consider how hot the down pipe gets on that bike!
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"Everybody needs money, that's why they call it money!"

[WD Forte]

I'll use silicon over gum gun anyday
Gun gum's ok for wood burning stoves

If you have to apply it thickly and want it to set fast thoughout
not just have a skin develop with snot beneath,
mix in some cornflour and trowel it in.
S'wat I do when making boots & grommets
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bikers smell of wee