New plugs causing Smoke out tailpipe?

[98mitsubishigst]

I bought new plugs and put them on my rebuilt motor with 50 miles on it and she blows out smoke.. the old plugs looks bad after initial break in.. so i replaced them and now i have bad smoke coming out...

itll get lighter and less ...

what could be causing this

 

[1995gsx20g]

what color smoke are we talking about?

when does it smoke?

i don't think its because of the plugs but i could be wrong..

 

[ThEDrEaMEnDeR]

sounds like your running to rich but we would actully have to see the smoke and such

 

[98mitsubishigst]

it was bluish thin smoke.. i was told my several mechanics thats what happens after first few turn ons after a full rebuild..

it hasnt smoked since (100 miles on rebuild its stopped)

 

[chanley talon]

I suspect a bad pcv valve.

 

[1995gsx20g]

a little smoke for the first 100 miles is pretty usual.. personally i think the oil rings take alot longer to seat than the compression rings because there is no combustion pressure on the oil rings to seat them but thats just my .02

 

[98mitsubishigst]

ive had my car running for a week now and during first 140 it would smoke a little on start up in mornings.. but not so much anymore.