Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Sounds like you are having an electric clutch issue or belt issue. Belt could be slipping, or the clutch may be going out or losing power. it the motor is stalling, I would say the clutch is your issue
Give me one moment to pull Diagrams and schematics and I will check over
This is a o Ground Master 4500d correct?
Can you supply me with the model and serial number of the machine please?