1956 evinrude 30 horse carb adjustments

[ftwdeviant]

just got a 56 30 horse big twin.I took it out for the first time and if I had the hi speed out 2 turns and the lo speed 1 1/2 out it would start good but didnt accelerate it stayed at just above idle.then I turned the high speed over a turn in and it ran good at high speeds but if it idled for any time it would pop and die then wouldn't start till I readjusted high speed back out.Are these adjustments something you can set and forget or do you have to adjust for what speed you want to do best at?

does anybody have step by step instructions on this I searched and didn't find an answer.

thank you in advance

 

[eric76]

Re: 1956 evinrude 30 horse carb adjustments

I just read some detailed instructions in the "topsecret" sticky

 

[lindy46]

Re: 1956 evinrude 30 horse carb adjustments

Carb probably needs cleaning/rebuilding. But you can try the high speed open 1 turn and adjust in the water until it runs at optimum speed. Then adjust the low speed for good idle, usually about 1.5 turns. If it sneezes, open the low speed slightly until the sneeze stops.