why is there black oil looking stuff coming out my exhaust claps and were the pipe connects to the silencer

 

Usually happens from running rich to just put putting aroung ( not clearing it out ) or the silencers need repacking cause they are full of oil.

 

Yup, what he said, just normal residue from 2 stroke exhaust, it may be time for new clamps,the rubber inside hardens and shrinks from age and heat, and will leak after a few years of running. Buddy of mine with a Banshee used to use heater hose to line the clamps, cheap, and just replaced them every few months or so.