humidity rise after short check engine run

[A2022]

Today, I cleaned and gapped the plugs and retarded the timing on my left mag by 2 degrees. It's been 150 hours since I last adjusted the mags, so I'm fine with doing the routine maintenance. The oil has 50 hours on it and still looks good, so I'll change it at 100 hours, just like the last interval. After the short engine check run, the sump humidity rose, but the dehumidifier will bring it down in about 30 minutes. It's nice to have a relaxing day inspecting the engine area; I didn't find anything concerning. This aircraft has been incredibly low maintenance. I'm hoping to be able to exercise my fat tire bike tomorrow. A test ride!