Pretty much. Any evaporating gas needs somewhere to go. And that seems to be on the ground lol. Try not to park in full sun regardless..................not good for the longevity of the paintwork or plastics. Sun will eat away the lustre.The bike is sitting in the sun hole day and happend again today.
It also had some rain but i have a cover on it.
So this is Gas evaporating and then going into the hose?