[AT] OT generator maintenance

[Dick Day]

My Generac 7.5KV generator is 7 years old and other than the semi-annual 
testing, it's never been used. I change the oil every year and every other 
year, I change the air filter and plug.  The manual says I should check the 
valve rocker arm clearance after 50 hours of use.  It will be a long time 
before it hits 50 hours of use at the rate we are going.

Is this something I need to worry about? It's running great as is.  It's a 
Generac (Briggs?) 15hp OHVI gas engine.

Thanks,

Dick