Guys I've got a 30 hp yamaha 3 cyl that I have put 50 hp tohatsu carbs on and it is not pulling fulling into the carbs and is running out of gas unless I pump the priming bulb on the fuel line. The reed stops have been reshaped and 40 reed blocks have been installed. The reed plate has been modifed to match the venture of the carbs as well.

This fuel lines and connections are good. I put new diaphrams, gasket, and fuel pump body on the carbs, and even made new gaskets for the carbs to make sure they were sealing against the intake plate. I still will not pull fuel into the carbs.

Any ideas and any help would be greatly appreciated so that I can fix this problem.