Oh, golly, we wish we could have been there to help when you bought the fuel lines, the carb, or the pump for your Yamaha, but that's all water under the bridge. Please don't get mad when we tell you why you don't have any fuel up to the cylinder. It's because of your crankshaft seal. Either the fan-side or the clutch side has blown out or is at least leaking. Now before everything is said and done, yes, we know it will run if you force gas to the carb, and yes, we know the compression probably reads fine. Neither of those things have anything to do with crankcase pressure. When it drops, the fuel pump can no longer do its job, draw gas from the tank, and get it to the carb; all because of that little crankcase seal.This aftermarket seal is for the crank side or the clutch side of the crankshaft. Some golf carts differ from one side to the other, but it is identical on this model. Get one of these and whatever else you need to be shipped your way from Buggies Unlimited.