My grandson has a 2007 youth Yamaha Girzzly 90 that keeps fouling plugs. It has seen very little use, certainly not abused. The plugs are wet, not oily. I am going to clean the carb and need the specifications on setting the float height (and wet setting if possible) and the pilot screw. I don’t have a schematic so that would be very helpful. If someone can give me the carb model that will also be helpful. Also, any bits of wisdom will be appreciated.