2013 Yamaha 9.9 4 stroke

by Craig
(Ma.)

Purse at Low idle runs very well at lower throttle say 3/4. At full it bogs down. New fuel filter. Carb been cleaned all gaskets are good no sighn of damage. Using Vp fuel none ethical. Fuel supply line and bulb are new. Tried squesing bulb at high throttle. No help there. Fuel pump seams good. I’m stumped !

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