Yes! That's exactly what it was. Thanks. If he's been doing it every 6k and therefore only once because he's telling me I should do the next one and the bike has 12.5k, it should be okay if I wait until ~16k?Probably cylinder Head Valve tappet clearance inspection & re-shim/re-adjust as needed.
Many of us older riders have learned to extend that interval to 10,000 miles, provided that we Never find an Air Filtration issue. Foam air filter MUST Be Thoroughly Oiled after cleaning!!!!
And occasionally look at the underside of the air box for any possible exhaust MELT hole!