i just bought a '93 rx7 wit a 13b twin turbo. its cold outside and when i start it up it has white smoke, then after driving for a few minutes, about 25-30, the smoke turns black. not very much... just enough to tell its black. its too windy to tell if stays while its driving tho. anybody know wut kind of problem i am looking at?

 

White smoke = condensation/coolant depends
Black smoke = fuel

Is the white smoke thick? Or thin? Is there a large amount?

 

the white smoke is condensation mate, you notice it more in the winter. The black means you need a tune, but not really a big deal.

 

the white smoke isn't really noticable after idling for a little bit.

and wut should i do to fix it... change my spark plugs? one of my friends told me to put some new gas in it, and run some injector cleaner thru it. ne other suggestions?

 

Condensation is normal for these cars...