i have cleaned the carb. replaced the plugs with the Q type and set them at 030. compression checked (115 each). it will run on high idle. but die on any thing lower. when putting in gear and slightly throddling up it dies. it will start on a half of the ropes length of pull. the little screw adjustment on top of the carb has no effect on the running of the motor. i can run it in fully to 3 turns out and nothing happens. the rod that connects to the cam under the flywheel also connected to the throddle handle and the little set screw on that shaft can be set any where and still dont run. i am so tired of pulling that rope and making adjustments the motor may soon be an anchor. i need very detailed help and pictures would be great. i can do the repairs but someone needs to first show me how.