You're right on the money, Slapper. For me the last serious case of what you describe was a 19 Kaw on a Dane Surfer--90 hours on the unit. The blower housing was packed up to the level of ignition coils with clippings/debris. Upper seal, breather cover and one head gasket leaking. The two back cap screws in the breather cover(under the flywheel) could be turned out with fingers. As a bonus, the exhaust valve on the blown head gasket side was stuck open. BTW, Slapper, that turkey gravy won't work on buttermilk biscuits, for me anyway.