I have a gravely 34 compact zero turn and it runs fine the idle speed is good even when the blades are engaged but as soon as i pull forward to cut the blades slow down. This is above my knowledge of the mower please help.
it should momemterarily slow down then the govenor kicks in and the engine should return to proper speed.
This is assuming the engine is running WFO.
Check the govenor & linkages.
