Hey guys, I'm new on here so I really don't know what I'm doing. I have a 1969 evinrude 6 and I am having problems keeping it on high idle. I cleaned the carb and replaced a few parts on the carb. The air fuel mixture needle seems to be very loose in the carb and usually vibrates out when I have the motor running. I tried adjusting the knob to see if the motor would run any better and it seemed to do nothing when I turned the knob. Anyone know what my problem could be?