You don't say what year RX7 nor what color the smoke is, but smoking, if blue in color, is generally a sign of bad side-seals. Apex seals are also a problem on many RX7 rotary motors. A compression check is a good place to start.Xamboni said:hi. i need some advice. my friend has an rx7 that is starting to smoke out the tailpipes when starting the car. his ride is also a bit rough (engine-wise). does anyone have a clue how to fix the smoking?? thanks
Black smoke is a sign of too much fuel: the "black" is soot - carbon particles.Xamboni said:it's smokes black and real thick and he says it also does it a bit when he's just driving around or in idle at a stop lite...what can be done to fix/test this out???