Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Welcome to JUST ANSWER small engines, let me try to help you !! I don't know it all, but maybe together we can get you a satisfactory answer!
Does the front pto belt tighten up , so it does not slip under load? See link below.
Does the deck belt stay tight? Or is the engine loosing power when blades are running?
If blades slow , there has to be slippage from one of the belts.
The vacuum could be leaking to the front actuator. Have you checked actuator to see if it will hold vacuum?
Actuator has to be capable of holding vacuum , if it does not, the belt will start slipping.
Do you have a hand held vacuum pump to check the actuator?
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