I have a Timecutter 75755 50" with the mulching kit. Start of new year did a tuned-up on the mower and added new blades. Great cut and mower running like new. Few days after the first cut I noticed the grass had yellow tips, meaning the new blades were not sharp. Remove blades and sharpen them. Next cut cycle grass looks great. Few days passed and again the grass still coming up with yellow tips. Before all of this started the old blades I never seen yellow tips in my yard. Anyone have this happen before if so, what was the fix. Tks
