RE: YS 91FZ throttle question
Sounds like you've got it handled...... basically counter clockwise on the arm opens the carb. Clockwise closes. Another trick not mentioned was that WITHOUTGLOWattached you could open the throttle put a starter on the motor for 10-15 seconds, and the tank should build pressure....... if the throttle was closed it wouldn't build up the tank pressure.
Skids