You can get exhaust 'blow out kits' for this (try racespec, offroad only and the like) - or you may find your local MX shop will do it for a few quid. I'm not sure you can do the standard pipes as they have all the crud in as above, but DEPs and the like should be OK.
I have done mine with a home ...

I wonder if I saw you down there?
I was there over the weekend of 16th/17th Oct, and came across a few other groups.
Still finding red mud on the bike!
Cheers
Dave

Hi Nick,
Yep, there is a gasket between the expansion pipe and the block, and it's the sort that gets compressed as you tighten the mounting bolts, so it's unlikely you will get a good seal if you re-use it.
You could use the old one, but it will be a bit louder, and you might regret it if you stall ...

Thanks Phil,
I can stop being paranoid about my ECU being on the way out then!
Is the jetting just a case of trial and error, with a plug chop after each change?
I'm using a full DEP, standard jetting, and the oil pump set according to the manual.
Or maybe I just don't ride hard enough? (Sorry ...

Maybe it's always done it, and I haven't noticed, but I don't think so.
Anyway, lately my AR seems to briefly open the powervalve right up for a second or so, before closing it at again, just above tickover.

As I pull away, the exhaust note suddnely becomes a lot deeper (and a bit louder), the ...

Chris Lorimer wrote:Thanks for the info guys.

Whats the quickest way of stopping the engine if it revs its nuts off again?

Chris

...stick it in gear, back brake on, and gently release the clutch?

You could try Bogbusters - a little cheaper @ £38 (but still to much for me!). I use the clear tuff stuff (of cuts from stuff I used to protect the plastics) and it seems to last.

http://www.bogbusters.freeserve.co.uk/i ... egaurd.gif

Cheers
Dave

Thanks - I'll re-torque it next time I've got my spanners out.
Cheers
Dave

Ah,
So what does the manual say - my (old) copy doesn't have a torque setting for the swingarm pivot - I just did it 'tight and then some'!
Cheers
Dave

OK - so I'm a bit late on this one but my thoughts - based on limited experience....

The Grittys come in 2 compounds - I've only used the hard ones. Great off road, OK on the road, but have seem to have the wear characteristics of Edam. I'd reckon on about 2000Km with 50/50 on/off road use.

I've ...