rear downpipe blowing

[pickles]

I have a 2000 model Raptor 1000 and just recently the bike has been popping on the over-run and sounding increasingly like a tractor! I whipped the exhaust off, and after the short stubby rear cylinder downpipe is a join which forms part of the collector and front downpipe. This appears to be sealed with a metal ring. I have cleaned and firegummed the assembly, put back together and all seemed fine for the first 150 miles or so. Now it's blowing again. The join at the rear downpipe doesn't seem to tighten up that well and the bogus metal ring just seems to have been designed by the ministry of crap design! Has anyone else had similar problems or know of a good fix? i love the bike to bits but this is starting to grate!

[carnivore]

I had exacly the same problem earlier this year, the only option is to buy a new gasket (the metal look colar thingy) that and a proper exaust clamp. the gasket was about 4 quid if i remember correctly. got a spare if you can't find one.

[pickles]

I think I can get the gasket, but did you find the clamp didn't fit properly and the new one did?

[snapdragon]

Welcome in Pickles

The zorst gaskets are designed to crush up to fit so when anything loosens they tend to be an expendable item

Suzuki gaskets fit and are often easier to get hold of - the deep one's aren't quite as deep, but they do fit (and work) can't remember what clamps I got last time
- - really must write some of this stuff down when it happens, memory not what it was

[wreckah]

anybody know where that stupid metal ring should sit?

under or above the gasket?

i put a new gasket in there a couple of months ago, and it's blowing through already!

[pickles]

Although I started this thread, I have subsequently noticed it has been on before. There is an exploded view diagram of the system added by shebee on page 2 of this 1000 tech forum. It certainly helped me!

[snapdragon]

This Post has the diagram

well spotted Pickles