A problem I've been fighting for a few years now and have not found a solution.
Simplicity Regency 12hp lawn tractor (about 1996?- last year the hydrostatic drive handle was in the middle). It has a mulching kit (which is just a discharge shoot block) and I use 'leaf cutters' on the leaves. When I first got the tractor, it did a superb job of mulching - both the grass clippings and leaves in the fall. The lasts three years or so, it has started leaving a trail of grass clippings down the middle, and it take repeated passes to chop up the leaves in the fall.
I typically mow once a week.
I have tried all the following with no success: Sharpened the blades Changed the blades Cleaned the deck Leveled the deck Tilted the deck forward and backward Changed the drive belt Cheched the RPM Mow more often
Still it leaves unsightly clippings. The neighbor with a cheap MTD gets a better cut.
Any suggestions? What have I yet to try?
Dave