How to stop cut grass blades from accumulating inside mower cavity?

[Gord Baker]

Only mow when grass is Tinder Dry. After changing the oil, I remove my Deck in the Fall and turn it upside down on a gravel area and pour the used oil into it, swabbing it on all sides and protruberances. Leave it overnite to soak into rusted areas.

 

[SeniorCitizen]

Blade difference , deck design as mentioned , blade speed etc . and probably several more reasons can be possible for that symptom .

A J D rider i owned had baffles and being I will never mulch they were removed and made a real difference and some cleaning problems were solved .