Hi all,<br />I think I got a few clues the other day about my lack of power problem. When the boat bogs dwn, I touch the choke button and it picks right up for a second. If I keep on tapping the button, the engine accelerates and then finally dies.<br />Since this seems to indicate fuel starvation, I primed the carbs with the bulb, and then ran a hose from the pump into a bottle and started the engine.<br />It ran for 20 seconds or so at 1000 rpm until it ran out of fuel, and the amount that pumped into the bottle wasn't enouch to fill all 3 float bowls<br />(maybe about 3 oz.).<br />I am assuming that the fuel pump delivery is the culprit, but I don't know what to do about it.<br />I took the pump apart and found the gaskets, diaphram, and check valves OK, (someone had recently replaced them by the looks of things)<br />and there is plenty of fuel getting to the pump.<br />A light squeeze on the bulb pumps a ton of fuel to the pump inlet.<br />I guess my question is; Is it possible that the primary compression is too low (weak signal to the pump)? I don't know how to verify this, but the engie runs great (50+ mph) when it's getting enough fuel, so I don't really want to tear it down just to improve fuel pump performance.<br />Are the pumps on these engines just marginal in design (common problem?) <br />Is there any updated pumps or bulletins that would improve my pump performance?<br />Finally, if I can't get the pump working well, has anyone out there ever retrofitted another type of pump, possibly electric?<br />I appreciate any help that you can give.<br />Thanks, John
