Took the boat out today. The last time I took it out would start and idle fine, in fact can use separate throttle to rev the engine no problem, but when giving gas in gear in the water bogs down and dies. Could only move at slow speeds. I have replaced fuel lines the bulb and main fuel line, plugs and wires, all 6 power coils. Ive checked compression and its within specs and it stills bogs down when in water and giving throttle. The fuel filter isn't filling up but I don't know if its suppose to. I don't use VRO mix oil manually. Can anyone help? Any ideas?