I am not entirely happy with my lazar z. This machine has 690 hours on it. It is less than 2 years old. I have replaced the hydro pump belt four times, the tension spring has broken 3 times. It had an electrical problem with 550 hours on it. The engine blew a gasket with 640 hours, this was a kohler recall. I had to have a new carburetor intake put on at 50 hours another kohler recall. The dealer is 40 minutes from my home. Is anyone else experiencing this hydro pump belt problem?