Just an update,
The carbie kit arrived, minus the needle valve, so I put the new gaskets in. I thought rather then reassembling it and discovering I had a problem I would put it in the vice and start it first. Did this last time to set the idle mixture. This time when giving it a few revs to try and set the high mixture the extra torque twisted it out of the vice. Fortunately I was wise enough not to try and stop it as the head would have been pretty hot, and luckily it landed on the spark plug snapping it off so it did not go far.
I looked at various ways of securing it a little better and came to the conclusion that back in the saw housing was probably best. Must have bent the throttle linkage as it was obvious when assembled that it would not go back to idle. Assembled and reassembled about five more times finally getting full movement of the throttle. Started the saw and the throttle linkage popped out of the trigger. Disassembled and epoxy glued the connection closed on the trigger. (it was just a slot or a crook that the linkage fit into) reassembled another two times as the throttle would not go back to idle again. Tested it numerous times tightened everything up and started the saw. The linkage popped out again. Must be the extra vibration when it is running. Thought about it overnight, and next morning with a piece of spring steel wire I made a new linkage. I only needed to reassemble twice to get it just right. Set the mixture and cut some wood. It is very noisy but I can't imagine finding a new exhaust for it. May need to give it to someone who lives out of town. It could also use a new bar and sprocket. That Aldi $99.00 one is looking better all the time.
Thanks to everyone who has contributed.
