Hi guys,<br />I really try to help myself, but the seloc manual for my 91 OMC 90 HP has exactly 3 slightly underexposed pictures (p 4-28 and 4-29) about the fuel pumps without much explanation.<br /><br />So here is my picture.<br /><br /><br />
<br />I have 4 hoses to these 2 pumps. Am I right the the right one is the VRO pump? (this feature is disabled at my motor) Then, from the manual I think the rightmost hose is the "fuel mixed outlet" hose.<br /><br />What now is the "vacum pulse hose" I read in the manual ?<br /><br />And what are the other 3 coming from / going to ?.<br /><br />And if the VRO is a combination pump, whats he pump on the left side with one hose coming from the bottom only ????<br /><br />I's hard to trace the hoses as this area is cluttered with wires and I'm afraid to break someting.<br /><br />Thanks again for some insight.
![hoses3.jpg](http://www.mrbarth.com/images/boat/hoses3.jpg)