exhaust gasket - am i missing something?

[imsimon]

just got a new (to me) 2006 ec250 and am ordering up a few spares. one of the things with the bike was that there was a little smoke coming from where the exhaust mounts with the engine, I presumed probably just the O-ring type gasket/copper thing like I had on my previous bike but I cant seem to find the correct part on ebay or dealer sites, Im sure there would be one?? any idea if Im missing the obvious??If I am a part number would be great!

thanks
simon

 

[noobi]

There are only o-rings on the exhaust spigot, no copper crush gasket.
The size is 44x3, same as a CR250 and KTM250/300. Probably others too.

Some guys will add rtv high temp silicon to the spigot to provide a better seal. The o-rings can wear out quickly if the pipe isn't quite straight.

 

[Vindicator]

There are only o-rings on the exhaust spigot, no copper crush gasket.
The size is 44x3, same as a CR250 and KTM250/300. Probably others too.

Some guys will add rtv high temp silicon to the spigot to provide a better seal. The o-rings can wear out quickly if the pipe isn't quite straight.

Same here, I usually order the o-rings of a 2007 KTM 300, they are viton so they can take the heat. I also add high temp silicon and let it dry for at least 24 hours .

 

[imsimon]

Same here, I usually order the o-rings of a 2007 KTM 300, they are viton so they can take the heat. I also add high temp silicon and let it dry for at least 24 hours .

Thank you very much. Ill get some ordered.