We are the #1 online supplier of genuine Honda marine parts for all years and sizes of Honda outboards, including Honda 7.5 HP outboard motor parts for your old engine. These are brand new Honda parts manufactured by the Honda factory and ready to fit into your outboard, not imitation aftermarket parts that never seem to quite fit right. Then go down to your local auto parts and pick up a gallon can of 'soak' type carb cleaner (usually includes a small parts basket) and put it in to soak for 20-30 minutes after disassembling. Wash it in warm soapy water, blow dry and reassemble.