I sorted out the airbox and painted the lid but in order to clean it properly I had to get the air filter shelf out which required drilling one of the bolts. All sorted now and nice and clean inside.
I just need to clean the outside now. I ordered an air filter that turned out to be too short so I’m waiting for the new one to arrive. I have been struggling with my zinc chromate plating kit but I think I have figured out what I’m doing wrong so I will probably take the steel parts off the carbs and plate them at a later stage.