Questions and Answers
Suzuki Swift Tail Pipe Turning Black
Q. Dear Ciulla, I learned a lot from your informative articles. They helped me to fix my economical mode of transportation more economical. Presently I didn't understand "Why the inner tailpipe end of my silencer became black, whereas car didn't make any smoke". The inner walls of the tail pipe are totally black. Is it okay?
- 1990 Suzuki Swift - Japan
- 1.0 liter 993 cc AISAN 2bbl down draft Carburetor
- Manual transmission
- 89,000 kilometers
Regards
Shahid
PakistanA. The black soot you see on the inside of the tail pipe is carbon from unburnt of incompletely burnt fuel.
Some is normal, but if it is heavy or you can see black smoke, then you are running an excessively rich fuel mixture. This can be due to a carburetor that needs to adjusted or is bad.
I would take it to a shop that has a 4 gas emissions analyzer and have the carburetor checked.
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