[steve86]

An hour-meter is a very useful accessory for any stationary engine.

Certainly is. Many of these engines need the valve lash checked at intervals also.

[backhoe]

Many of these engines need the valve lash checked at intervals also.

Yes, the memories- nothing teaches diagnostics better than a small engine-- if everything isn't almost just theoretically perfect, they either run poorly, or don't run a'tall.