Re: 1970 60hp Johnson low speed needle settings & adjusting throtle cable help
Set cable in neutral to middle line on trans throttle plate. Adjust center carb low speed needle to one 1/4 (1/4 to 1/2)turns to right. Do same to upper and lower carbs. Start and adjust upper and and lower untill you have a nice idle. Then relpace high low idle asym. It worked for me