Posted 9/27/2020 10:22 (#8517441 - in reply to #8517403) Subject: RE: Rear beater speed on Massey 850
NE Neb
Make sure the main belt isn't slipping. If not adjust engine speed. I would take a tach to the rear beater before I trusted the digital readout.
Edit. Make sure your throttle track on the dash isn't worn. Push the throttle to the right farther see if it get up to speed.