Originally Posted by Dynamo1181
You have two adjustment screws that will effect the idle. The first is the throttle stop that can be seen as a stop againt the end of the throttle shaft near the spring or cable connection. The other as previously mentioned is the "anti stall adjustment. This is on top of the pump. I am going on memory as I dont have my manual handy, but this is screwed in untill you see an increase in idle speed. You then turn back one half turn and lock down. Then adjust the throttle stop to about 725 rpms.
I went to the boat today and got to work. I began by taking out the manual and reading about the anti stall adjustment. After reading the workshop manual, I became encouraged that it was a simple adjustment...until I took a look at the engine
and noticed the anti stall bolt and retaining nut being located directly under the exhaust
The only way to access this are is to remove the manifold. It's interesting to note the workshop manual assumes this screw can be easily adjusted and recommends that several settings be tried before the correct setting can be determined. Perhaps if I had hands the size of my five year old son's, it wouldn't be so much of a problem.
Long story short, I removed the manifold, which included removing the coolant
reservoir and exhaust
. I examined the condition of the bolt and saw it was rusted and bent. I ended up removing it completely. I can compensate for it's absense by making adjustments to the throttle cable.
Now I can idle my engine at 750 with no problem at all. Thanks again for all the advice!