mixture adjustment on 83 Rabbit carb

Hi, I'm hoping someone can help me with my 83 Rabbit L. It has a stock Carter-
Weber carb and is running very rich. I recently replaced the needle and seat,
which helped for a while, but now the plugs are covered in black fuzz and the
exhaust spews black clouds. Compression is fine, I have replaced most of the
vacuum lines and adjusted the timing. The questions are:
1. Where is the mixture adjustment screw on this carb? The only thing I have
found is idle (I think) on drivers (RH) side of carb.
2. Could it be the O2 sensor? I haven't changed it quite a while.
3. Any other ideas for leaning it out?
Thanks!

Without knowing this type of carb. look at the base of the housing just
under the throtlle plate for a small adj. screw.
Sometimes it's in the mounting flange.

SFC

"nosbig" <u19748@uwe> schreef in bericht news:5d59e95c7be46@uwe...
> Hi, I'm hoping someone can help me with my 83 Rabbit L. It has a stock
> Carter-
> Weber carb and is running very rich. I recently replaced the needle and
> seat,
> which helped for a while, but now the plugs are covered in black fuzz and
> the
> exhaust spews black clouds. Compression is fine, I have replaced most of
> the
> vacuum lines and adjusted the timing. The questions are:
> 1. Where is the mixture adjustment screw on this carb? The only thing I
> have
> found is idle (I think) on drivers (RH) side of carb.
> 2. Could it be the O2 sensor? I haven't changed it quite a while.
> 3. Any other ideas for leaning it out?
> Thanks!