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1991 Audi 80 high feul comsuption

1991 AUDI 80
267,879 MILES • 4 CYL • 2WD • MANUAL
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ENTIST
  • MEMBER
  • 1 POST
i have audi 80 model my problem start after I change set of ringes of the cyl , comsuption of gasoline increse with formation of black smoke it comsupt about ( 1 LT per 8 Km ). i open the Carburetor and clean it but with out benefit.
please for your advice.
Sep 5, 2008 at 8:47 PM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,812 POSTS
Hi entist,

Sooty spark plugs means too much fuel is getting into the cylinders or the combustion is incomplete.

1. Is the automatic choke is opening fully?
2. Is the valve timing correct?
3. Are there any vacumn leakages?
4. Is the igniton timing correct?
Sep 6, 2008 at 2:34 AM
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