Should I be worried?

[OMNIO]

Tucked up the hornet for winter but have been out to start it up and let it run till warm a few times a month. Going over the bike I noticed this stuff.



Is it corrosion? It's kind of chalky and mostly rubs off. It was pretty clean when I parked it.

[OMNIO]

Thanks for the advice. Didnt realise I was doing more harm than good