my 1977 mgb runs well for about 20 minutes then its starts spluttering

Asked by GuruFF5TT May 04, 2020 at 06:47 AM about the 1977 MG MGB

Question type: Maintenance & Repair

my 1977 mgb runs well for about 20 minutes then its starts spluttering - if i keep
droping a gear and then restore to 4th it will get me home - but feels like its
running rich

1 Answer

F_O_R answered 4 years ago

Check the spark plugs to see if it is running rich. Black soot on them means it is rich. Perhaps it is time for a carb rebuild and a tuneup.

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