I have 800 hours on my Lazer. The clutch will not engage. I tested the PTO switch with an ohm meter and it's OK. I also checked, and I have 12 volts coming to the plug that hooks up to the clutch. What I don't know is if the clutch should have continuity through the wires at the plug when it is not engaged. Mine doesn't. I don't hear the normal "clicking" noise when it engages. Also, I did a search on Lawnsite on clutches and it seemed several had problems with the bearings. I haven't pulled it apart yet to check. Anyone have have any suggestions?