Hi, I don’t know much about how my bike functions but we had a flood recently in Hong Kong and the mechanic didn’t want to touch it so I started tinkering which is dangerous since I know very little about bikes - anyway i muddled through through checking plugs and water in cylinders, found and and removed soggy air filter, checked pipes/hoses, exhausts and in the end had to remove and clean carb (thanks to you tube) which worked! - finally running but I removed this box (see following photo) I don’t know what it is and if I’m supposed to open it but I did and found a lot of gunk and some water - now I’ve silicones it back together and will put some duct tape around d for temp fix - can anyone tell me what the box is for, I couldn’t find it on the pdf Honda manual I downloaded