Motor started acting up this spring. Hard starting so I rplcd brushes and that was fixed. No water output, rplcd impeller. Seems to be working ok. Motor will start when cold but within 10 minutes it kills. Once this happens the motor is very difficult to start. Have rplcd coils and power pack last year. Engine still fires when this happens. I rebuilt the carbs recently. The only thing that I have not yet checked is the timing to throttle alignment. Could this cause the problem. When the motor is hot and I attempt to start it I can get it to run if I manually work the throttle linkage at the carb but it is very difficult to maintain any idle. Any help is greatly appreciated.
