kh125 exhast downpipe to silencer

[zenith10]

ive recently removed the exhaust and cleaned it out with caustic soda, after putting it back together on the bike its blowing quite badly from where the downpipe meets the silencer after reading on the internet it says there should be a rubber there? but there wasn't one when i took it off and it didnt blow anyway i was wondering if i can just put putty around it to seal it?

[Nemo]

As far as I'm aware it's just a clamp, although my old one had exhaust tape round it, but when I took the tape off it was fine.

Putty'll be fine though, it's what I had round my downpipe where it meets the cylinder on my gp, worked fine (Y)

Don't think it was rubber though, was a gasket but not rubber.
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Previously owned: Kawasaki KH125, Suzuki GP125, Suzuki GX 125, Honda CB125 TDC '83, Honda ntv 600, Kawasaki ER5, Kawasaki ZZR600, Aprilia RSV 1000 Mille
Now own: Ducati 848 evo

[zenith10]

seems strange how it was fine before but blowing after. You know im on about where the downpipe goes into the silencer and not the cylinder end? So put a load of putty round it and itl be ok?

[Nemo]

Yeah, put some putty round it then sand it down when it's dry to make it neat, should be fine.
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Previously owned: Kawasaki KH125, Suzuki GP125, Suzuki GX 125, Honda CB125 TDC '83, Honda ntv 600, Kawasaki ER5, Kawasaki ZZR600, Aprilia RSV 1000 Mille
Now own: Ducati 848 evo

[zenith10]

thankyou for the help guys on me way to buy some putty

[zenith10]

hi sorry for bringing this back up again but tried puttying it and the putty goes hard and breaks after a few rides been re puttying it but dont want to do it forever wondering if anyone knows where i can get the exhaust rubber from or even a full exhaust quite cheap?

[fiery tupp]

If it was me , I would just cut a 1 - 2 inch strip of thin alloy / tin or copper (whatever thickness it needs ) wrap it around the end of the pipe , like a sleeve , so it fits exactly when tight
Then fit the silencer over it & I assume it has a clamp, tighten it
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If you can't fix it with a hammer , use your head .

[zenith10]

thankyou for the help but its not got a clamp its a small down pipe and meets the muffler at the foot pegs and this is where the rubber is needed to seal it cant seem to get one anywhere

[fiery tupp]

You might find one here ? https://www.mad4bikes.co.uk/exhausts/motorcycle-exhaust-silencer-collector-gasket-seal-p-1907.html
____________________
If you can't fix it with a hammer , use your head .