Originally Posted by joee0914
Checked tensioner spring and seems fairly tight throughout the deck height range.
Also I should add that the motor remains at full rpms and does not bog down at all when blades slow.
If the pto is new and good then the only other thing that moves the blades are the belt, pulley and spindles.
The only time something like that happened to me is when my blades were not tightened properly. All 3 came loose. they would start out spinning but then slowed when cutting.
that can't be your problem though
cant wait to find out what the problem is.