Black smoke on acceleration is from a rich running engine. the fuel smell can also be from the same but please make sure u dont have an extermal fuel leak. that could be dangerous and a strong smell would occur. have ur engine computer system scanned for possible codes or if its a carbeuretor sounds like the float may be sticking or a msadjusted choke or carb assembly. hope this helps
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Black smoke on acceleration is from a rich running engine. the fuel smell can also be from the same but please make sure u dont have an extermal fuel leak. that could be dangerous and a strong smell would occur. have ur engine computer system scanned for possible codes or if its a carbeuretor sounds like the float may be sticking or a msadjusted choke or carb assembly. hope this helps