The electric clutch on my 97 Lazer with less than 300 hrs seems to be dieing. When the system is hot and I disengage the blades & try to re-enage them all I get is a hissing sound. Most of the time if I shut the engine down & restart I can re-engage the blades. I don't seem to have any problem when first starting up, onlyafter mowing awhile does it give me a problem. If anyone has had a similar problem, or has any knowledge of this, I would apprreciate hearing about it. Thanks!!