a Question

[250exdude]

my brothers owns a 2002 cr125 and he has a fmf shorty pipe for it. it spits out this black tar like stuff. does anyone know what it is and what to do about it.

[250xTrailRider]

How old is the FMF muffler? It kind of sounds like the sound deading material if coming out of it.Has it gotten louder over time? I think that if it can be repacked now might be a good time.

[MR.BIG]

It just oil that is not getting burned all the way. It's not going to hurt anything. My 250r's use to do the same thing.