March 30, 20197 yr I noticed a fair amount of smale coming out of the seal between the header pipe and the silencer. I had been tinkering with the silencer packing so might have disturbed it a bit. Anyway, I removed the silencer and the O ring seals are in tact but there seems to be some some sort of sealant between them. When I replace the silencer should I use any particular sealant as well as the O rings ? Maybe I should change the O rings (2017 300 RR) but from past experience they are a pain to fit ? Any advice ?
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