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1967 911S weber carb

  • 1967
  • 911S
Mileage: 
30 000
Engine
South Bend, 
Indiana

Does turning in (clockwise) the ideal mixure screw make the car run richer or leaner. Cylinder number 3 is running too lean as the spark plug is a light orange color almost light rust color while all the others are a light gray with very little dry soot. 

 

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