dabomb Posted February 23, 2008 Report Share Posted February 23, 2008 Hi all,how do you know when the .exhaust needs repacking??,my 290 has developed what can only be described as a cracking sound rather than a pop if you know what i mean., i really dont like the sound its making at the mo.Would a repack change this??? Thanks in advance Quote Link to comment Share on other sites More sharing options...
copemech Posted February 24, 2008 Report Share Posted February 24, 2008 We have covered this before, but it basically comes down to replacing them unless you have a tig machine in the shed! As far as "when"? When they sound bad enough to warrant it and de-coking does no good! Quote Link to comment Share on other sites More sharing options...
jiw82 Posted February 24, 2008 Report Share Posted February 24, 2008 I have a 2004 Sherco 250 at the moment, my mate rides a 290 and mine sounds very tinny compared to his, ive been contemplating a repack for some time now but i have been in doubt wether or not its just down to the different engine sizes or the fact my packng is no longer effective.... Are the 250 sherco's more raspy/tinny than the 290's? Quote Link to comment Share on other sites More sharing options...
dabomb Posted February 24, 2008 Author Report Share Posted February 24, 2008 We have covered this before, but it basically comes down to replacing them unless you have a tig machine in the shed!As far as "when"? When they sound bad enough to warrant it and de-coking does no good! Welding the box up is no problem,and to be honest,it doesnt sound good at all,and with the bike getting on for 4 years,it probably due re-packing.I will try to locate the postings on this subject if they are still available. Quote Link to comment Share on other sites More sharing options...
copemech Posted February 24, 2008 Report Share Posted February 24, 2008 Welding the box up is no problem,and to be honest,it doesnt sound good at all,and with the bike getting on for 4 years,it probably due re-packing.I will try to locate the postings on this subject if they are still available. I think Al Bechard had the best pics and advice on cutting the old one openand cutting out the spotwelds! Quote Link to comment Share on other sites More sharing options...
lselph Posted February 25, 2008 Report Share Posted February 25, 2008 Anyone got a link for the Al Bechard tutorial? Quote Link to comment Share on other sites More sharing options...
copemech Posted February 25, 2008 Report Share Posted February 25, 2008 Try HERE Or go back about 5 pages Quote Link to comment Share on other sites More sharing options...
alan bechard Posted February 29, 2008 Report Share Posted February 29, 2008 I am here if I can help. Quote Link to comment Share on other sites More sharing options...
copemech Posted March 1, 2008 Report Share Posted March 1, 2008 I have a 2004 Sherco 250 at the moment, my mate rides a 290 and mine sounds very tinny compared to his, ive been contemplating a repack for some time now but i have been in doubt wether or not its just down to the different engine sizes or the fact my packng is no longer effective....Are the 250 sherco's more raspy/tinny than the 290's? NO Quote Link to comment Share on other sites More sharing options...
dabomb Posted March 2, 2008 Author Report Share Posted March 2, 2008 I am here if I can help. Hi,Alan,did you have any problems welding the silencer back together,like the packing setting on fire?? Quote Link to comment Share on other sites More sharing options...
alan bechard Posted March 3, 2008 Report Share Posted March 3, 2008 No, I use silent sport or the moose packing (which I think is actually silent sport) I also used stainless wool, and plain steel wool up front. Probably the two things I question each time are Is that packed enough? Did I wad it up too much after I was stuffing it under the cover? For me, the pain is too make sure the packing is not trying to sneak out the edges of the cover, if you weld (tig) across a piece of packing you will notice, and probably end up grinding and rewelding that bubble. I have said it in the other threads, and will say it here as well. These are practical for me to do as a welding exercise. I have all the equipment sitting quietely in the basement, and welding is almost as much a hobby for me as the bikes are. That said, if I did not have all the stuff sitting there, there would be no way I would consider rebuilding one to be cost effective. Quote Link to comment Share on other sites More sharing options...
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