Well, OBJ, Clanton, Joe Reeves, whomever....thanks for all the advice that has gotten me to this point....<br /><br />After noting that the VRO pump would not shoot any fuel out the outlet when engine is spun, I took the pump off and in to the dealer in Puerto Vallarta. He took a look inside, said, the diaphragm was bad, and put in a new one he had in stock. He said it would work like a charm now, although he didn't test it.<br /><br />I reinstalled it. Darned thing still doesn't pump a drop.<br /><br />To recap....the engine will run indefinitely, and sounds normal, so long as I pump the bulb manually every minute or so to keep the carbuetor bowls filled. <br /><br />But, the VRO is not pumping one bit, even with the new diaphragm. Within a minute or so of my stopping the manual pumping, the available fuel in the carburetors is used up and the engine bogs and dies, just as always.<br /><br />The vaccuum pulse hose that powers the VRO has a very faint pulse. Is this normal? (I haven't found a gauge to measure the pulse and don't know what sort of gauge to look for in any case, I have to admit.)<br /> <br />The pulse hose seems clear and unobstructed when I blow in it. There are no leaks or cracks in it.<br /><br />To make sure I'm not completely crossed up here, the pulse hose is the 3/8 (looks just like fuel line) hose that comes off the block and attaches to the most aft, and downward pointing fitting, of the VRO, right? <br /><br />Is it most likely that A: there is still something wrong inside that VRO pump that the dealer didn't fix? Or, B: for some reason there is not enough pulse to power it?<br /><br />Or something else altogether I haven't even thought of...??
