Join Date: Oct 2002
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Re: Leaky exhaust
I avoid riding my cr or my banshee in weather below 30 degrees because of that possibility. I ride and 89 cr125, and the goop is always going to be there. Like kyron said, make sure your gasket is still good and I put high temp sealant around the gasket, and where the silencer and pipe meet. I run a fmf fatty and gold series combo. The goop isn't as bad since I switched. They say another reason you get that black stuff if because your not running high enough octane. I run 2 gallons of race gas and 3 gallons of premium pump, golden spectro 52 to 1. The goop is still there but it's really not that bad.
You might want to try a mix of race gas, if you aren't already running some.