I was having issues with water getting in my gas. After replacing the gas gap perko rubber orings that helped however to be safe I want to replace the gas caps and plastic neck. So I have a 2005, 232 Gulfstream, does anyone know the part number for the gas gap and the neck? I see there are two options, straight neck and one with a bend. Also to replace and reconnect gas line and breather do I need any special tools. Thank you in advance for your help.