Uno Fire 1994 194000 km on the clock

I am experiencing very small amounts of black smoke from the tail pipe, which increases slightly when reved, what could be causing this, and how can this be fixed?

--
Posted using the http://www.autoforumz.com interface, at author's request
Articles individually checked for conformance to usenet standards
  Click to see the full signature.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Burning oil - worn piston rings? For a '94 Uno it'll cost more than it's worth.
Hellraiser...........>
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.