Instant gasket on exhaust manifold?

[Vinyardo]

I've got an old CB500 that I'm commuting on at the moment which has blown one of the exhaust manifold gaskets. Unfortunately, it has also sheared the bolt off on one side

I'm looking for a quick fix as I don't want to spend loads on an old bike that is falling apart anyway, so would instant gasket do the trick? It is seriously noisy at the moment...

Cheers
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--| Current bike: |--
--| Previous bikes: Honda CB500 -- KTM Duke 390 -- Honda CBR1000RR7 Fireblade -- Honda CBR600 FX -- Suzuki Bandit 600 -- Yamaha TTR250 -- Suzuki GN125 |--

[andyscooter]

instant gasket would melt at the exhaust temperature
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gilera runner vxr200 (chavped)
if its spelt wrong its my fat fingers and daft auto correct on my tablet

[Vinyardo]

Is instant gasket not designed to withstand high temperatures? Looking at something like this:

https://www.halfords.com/workshop-tools/garage-equipment/head-gasket-exhaust-repairs/granville-instant-gasket-40g

It only says not for use for head gasket and fuel systems.
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--| Current bike: |--
--| Previous bikes: Honda CB500 -- KTM Duke 390 -- Honda CBR1000RR7 Fireblade -- Honda CBR600 FX -- Suzuki Bandit 600 -- Yamaha TTR250 -- Suzuki GN125 |--

[stinkwheel]

No. It needs bolting on. Plumbers silicone would stand the heat but you only have one bolt bolding it on so it'll be moving about ad wil quickly fail again.

On that bike, there are two "spare" bits of casting at 90 degrees to the current studs where you could carefully drill and tap holes for new studs.
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“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.