Starting Problem Mercruiser 5.7

Now I am jumping in here,-- What bill says Is that when the choke shaft turns to close the butterflies there is a cam that comes under the slow running screw, It turns by gravity and when you open the throttle the cam is allowed to fall infront of the slow running screw when the choke is on. Usually three or more steps of different idling speed. As the choke heats up from the heating element it slowly turns open the choke and the cam also slowly begins its travel back to off, allowing the fast idle screw to sit on each of the three stages. Finally when the choke is right off the cam comes out of the way of the idle screw and it then sits on its normal operating idle stop---phew. What he says about the carb bieng automotive I dont know but sounds right.

 

(_8-(|) D'oh!

 

Stonebreaker,
Thanks for the info on the fast cam deal. This is a marine Mercruiser 2 BBL carb and it idles at 1000 RPM on the choke cam. When the cam falls away the next time the axcelerator is moved, it idles around 600 RPM. May not be enough to pull my transom off.