[WPTA] 1979 Spitfire Carb Adjustment

[candkkuhn at aol.com]

Hello All,
My 1979 Spitfire is running very rich (to the point of black smoke coming out of exhaust).  I attempted to adjust the carburetor needle valve by starting with the needle valve all the way out and turning using the Allen key adjustment tool to turn 1/4 turn at a time.  This had no effect.  Using a screwdriver to lift the carb piston still resulted in the engine rpm increasing.  I started over in the full rich position and turned the Allen key 3 turns to the lean position.  This had no effect.  Any suggestions?
Much appreciated, Chuck Kuhn
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