Hustler Super Z

[wps]

My Hustler Super Z runs great for about a half an hour and then loses power and runs at a reduced RPM; let it sit for an half an hour or so and it will run fine for another half an hour. Mowing a half an hour at a time

 

[BlazNT]

2 things

1: Remove engine cover and check for lots of dirt and grass. Could be over heating.
2: Check fuel tank for crud in it. Could be clogged fuel line.