I'm looking at buying the carb rebuild kit @ OSD, and there are a ton of optional additional o-rings and gaskets to choose from, do I need any of those for a 97 Seadoo GSX? Or am I good to go with a base kit? The Seadoo has about 97 hours on it and ran great last year, now after replacing the fuel selector valve and fuel lines, i can't get it to suck gas into the carbs, I'm thinking it needs a carb rebuild, suggestions?