atc 185s smoke

[84atc200]

Hi i recently put an after market exhaust on my 185. And i noticed some blackish smoke coming from the exhaust when i rev it, what could it be?

[3wheelsinPA]

White/blue smoke is burned oil, black smoke is unburned gas. If it keeps blowing after it's warmed up it can mean your carb is set too rich, air filter is filthy, etc.

[harryredtrike]

yes^^^^^^^^^