Hi,
I have repacked 2stroke mufflers using standard household insulation as probably alot of you have. I have 03 CR450F that needs a repack,,the packing from service honda goes for about $100. The cr250 two stroke packing goes for about $20. The part description for both say, wool/glass. What have you guys used to repack the fourstroke muffler if you did not buy replacement packing from a vendor? Thanks!
If you have OEM exhaust, use Moose repack cartridge pn # 1860-0091 about $25
they also list repack cartriges for aftermarket exhaust.
best stuff I've ever used and they use the pillow packing designed for 4 strokes and it's encased in a carbon coated fiber matt that makes it really easy to replace.
$ 100 for any packing is ridiculous....