It does not matter cause I mix 50:1 in the 63-gallon tank, and with out any fuel in the line/pump the engine will shut down. seahorse: posted 08-22-2004 07:03 PM ET (US) VRO PRE-MIX REPLACEMENT PUMPS IF YOUR VRO PUMP IS DAMAGED OR YOU JUST PREFER TO PRE-MIX, JUST REPLACE IT WITH A NON-OILING PUMP FROM MASTERTECH! VRO pump was replaced 2 or 3 years ago and I dont want to fault again. It would fail, and with no alarm, you didn't know until it was too late. When you say "spraying out the top", do you mean at the hose fitting, or out of the pump housing? I am working on a friends 96 150 Johnson that has been sitting up since last summer, when I went to drain the carbs they were full of premix oil, all six of them and the fuel filter also. Anyone else ever have this issue? Somewhere I saw two charts that gave testing procedures for the pump itself (now I cant find them again). The most accurate method for troubleshooting the fuel pump on your Evinrude is to test the pump with a low-pressure fuel gauge while running the motor at various speeds with the propeller attached. All Pumps On This Page Require Pre-mixing 50:1 fuel/oil in fuel tank! Compression is 120, 105, 115, from top to bottom. Suggestions for updating older motors are included. I run a 1993 evinrude 50 HP motor on my 18' Lowe and I disconnected theb VRO pump several years ago. Johnson VRO Pump Problems Please Help!!! The 'No Oil' light comes on every so often and the siren sounds for about a 10 seconds. A VRO pump has 4. Seahorse, then if the VRO is no longer in use and has been disconected, can the vacuum switch be taken off to unclutter the engine? That was one thing that made the old one bad. Regular fuel pump will have two hose fittings (incoming and outgoing). My 1985 70Hp Johnson (on my 15_Sport) has been running premix fuel since I bought it in 1996 from the original owner (with the oil line pluged). If the seal between the two portions of the pump is shot, you either get a new VRO pump, or you go the route Sal went with the Non-VRO pump. Also, there was info about the pulse vavle, including an updated color band (blue I think). I need no warning. Prior to owning my 1985 Evinrude 150hp which was used, I owned a 1985 Evinrude 70hp with VRO since it was new. As a result, some owners of OMC engines with the VRO feature have disconnected the pump and reverted to pre-mixing. If you take off the cover and look at the VRO pump, the old VRO pump has 3 wires coming from it, tan , black and grey, and the newer VRO 2 has a 4th wire that is purple. I pulled mine out today and it … That purple wire goes to the alarm. ... 1986 VRO 60hp problems 05-24-2017, 06:56 PM ... Engine stalls as soon as it is put in gear. This article discusses the history of OMC outboards with VRO, the theory of VRO operation, and the diagnosis and repair of common problems. If the alarm rings it will simply be that no fuel is getting to the pump. I never changed the filter in the Oil Tank because I never knew there was one there until recently. 1. Ask the experts on our Evinrude Forum for repair issues, diagnosing problems, links to diagrams, suggestions on buying parts and more. This means taking your boat and motor to a nearby body of water, … These motors were known to have issues with the pumps not mixing enough oil in with the fuel and burning up pistons. I owned the 70hp for 15 years and never had any problem with the older VRO system. I have a 96 200hp Evinrude OceanPro that has been giving me the following problems. Cleaned all spark plugs, and carbs then pumped the primer bulb till it was hard and the carbs were full. The mechanical pumps used on some motors may be dependable but mine used vacuum/pulse type pump. 2. 3 on the bottom for incoming fuel, oil, and crankcase pressure, and one on the top where the fuel/oil mixture comes out and goes to the carburetors. I asked a mechanic at Jim Smith Marine if he had any clue what the issue was, he claims that it could be my VRO pump.

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