Take off the gas tank, take off the air inlet boots and loosen the boots on the other end of the carbs but leave them attached to the cylinder inlets so you don't have trouble aligning them later... take off all the cables going to the carbs and then just twist and pull until you can get them out. Not exactly easy, especially the first time, but you'll get it if you're patient.
There should be a notch in the head right above the opening on the engine that the boots slide on to. On the boots there is a little piece of rubber sticking out, it almost looks like a left over piece from the factory molding, but it is the aligning notches.im having trouble getting them to so sit right and with how the boots fit on. I don t see any marks or anything for getting them lined up
Like thtanner said, you can just add it to the fuel tank as an additive... or you can disconnect the fuel hoses at the petcock, loosen the drain screws to drain the fuel bowls of fuel, tighten the drain screws, then fill up the carbs with seafoam through the fuel lines and let them sit overnight if you're trying to get rid of some gunk or stuck needle or whatever.How do you install the sea foam with out taking off the carb