89 Mighty Max - carbon in the exhaust

My '89 Mighty Max 4 cyl 121 cid is blowing carbon from the exhaust pipe - black fine soot.

Any advice for troubleshooting or repair would be appreciated.

Chris in NC

Reply to
newsreader-Durham
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could try switching to a low carbon exhaust pipe.

Reply to
Bhagat Gurtu

"Could need a tune up,new points spark plugs just for starters

Peter

Reply to
Raven

Sounds like it's running too rich (too much gas for the amount of air)This may be caused by a dirty aircleaner (limiting the amount of air and causing too rich a mixture).

There could be other reasons but start with the aircleaner.

Reply to
Alvin Melton

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