Geo-TH,In
Well-known Member
I had trouble starting my old 5 hp briggs flat head. Took breather off and added a little gas. When it started, for about 15 seconds the intake valve didn't close all the way and it would blow gas out the carb, miss and blow black smoke. I didn't add that much gas to create the problem. I'm wondering, do the old flat heads use the intake valve as a decompression valve?
Is it possible rust or carbon didn't let the intake valve to close?
Or is it possible I have a case of intake valve set recession?
George
Is it possible rust or carbon didn't let the intake valve to close?
Or is it possible I have a case of intake valve set recession?
George