Home › Forum › Ask A Member › Synching carbs and ignition on 1972 85 hp V4 › Re: Synching carbs and ignition on 1972 85 hp V4
To make it simpler in our minds, just relate all this to something we are familiar with. Take an old twin motor with a sliding spark advance/throttle on the front for example. You would put the speed control lever slightly to the right of center, and there would be a mark on the throttle cam that would align with a roller on the carb link, and the carb would just barely be ready to start opening. With me so far??
OK, then. Putting the speed control lever slightly to the right of center equates with setting the timer base to 5 degrees. Not touching that again, the mark on the cam is supposed to be centered on the roller and the carbs would be just ready to start to open (two adjustments, one to center cam on roller and one to make carbs just ready to open)
Make sense now?