Vro fuel pump pressure 5 pulses. The fuel pump fills the float bowls and when the engine is running provides fuel/pressure when needed to the primer solenoid. When problems first started it was losing power completely and quitting at WOT - May 30, 2011 · I have a 1987 Evinrude 40 HP E40TLCUD that starts and idles great. There is a flange for mounting on the engine block to receive pressure pulsations from the engine to cause the pump diaphragm to operate. I have 5-7 lb of positive pressure Jun 30, 2020 · The VRO fuel pump uses both pressure and vacuum to operate it. Quickly remove the hose of the pump from the pulse fitting. I have connected pressure tester to the Pulse Line going into the pump and I pump or attempt to pump to 15psi but will not hold or build pressure do hear click of the fuel pump intermittently. sucking air, loosing the vacume required to pull the fuel from tank to carbs. Feb 28, 2004 · What is the maximum fuel pressure you can put before the VRO fuel pump? The reason I ask is I have a few things on the fuel line (eletric fuel selector, water seperator, fuel flow transducer, and a couple filters) and am concerned it will put to big of load on the VRO so I was going to install another "helper" fuel pump. to/3UdeH5r part links . Does not fit 60° or 3 cylinder applications. The air motor diaphragm kit is part number 435921 and the fuel pump repair kit is 436095. Compression is good on cylinders. to/3HZjRK9 Around $20 use the link it's easy and takes you straight to the product. It ensures reliable fuel delivery, maintaining pressure above 3 PSI at all RPMs for consistent engine performance. Here is a diagram of the fuel system for reference. Anyone else chime in if you have a different recommendation. This based on other 2 stroke engines that I seen tested. This eliminates the need for the boat operator to manually Customer: I have a 1989 Evinrude 60hp VRO motor, model# XXXXX. The pump gets its pulse from the #6 crankcase. When that happens, just give Wholesale Marine a call. May 10, 2018 · There is no complete repair kit for the VRO pumps and OMC/BRP discourages service of the pumps, but we do have a kit that covers the Airmotor Side of the pump and one that covers the Fuel Side of the pump. Oct 13, 2008 · (VRO Pump Conversion To Straight Fuel Pump) (J. Difficult to Mount in space available. Lose the primeball and use an inline electric fuel pump with a pressure regulator between pump and carbs. Mar 18, 2009 · I have a pair of 200HP Johnson Ocean Runners that have the VRO2 oil injection fuel pumps. Ultimately it is up to JLM Marine VRO fuel pump rebuild kit replaces 3CV4 for Johnson/Evinrude 3-cylinder 60-70 HP and V4 Crossflow engines pre-1984. I can get it to This VRO Fuel Pump Rebuild Kit is engineered for Johnson/Evinrude V6 60° Looper outboard engines (150-175 HP) manufactured between 1991 and 2006. 174710 Mar 9, 2018 · Basically, this is a block mount fuel pump to install in place of the original VRO pump. you could test this by placing a T in the pluse line. Easy to follow instructions, fuel hose and additional zip ties are included to complete the Follow me as I take you through replacing a vro or fuel oil mixture pump on this 1997 Evinrude 90 outboard engine. Dec 29, 2013 · Re: Fuel pump check Thanks F_R. I didn't have any fuel pressure, primer bulb would go flat and fuel,filter go empty. Well from what I understand, the stock fuel pump gets eliminated along with the vro unit. VRO Fuel Pump Rebuild Kit – Fits Johnson/Evinrude V6 60° Looper Engines 150-175 HP (Replaces V660) This VRO fuel pump rebuild kit is designed for Johnson/Evinrude V6 60° Looper engines (150-175 HP) manufactured between 1991 and 2006. Here's how to go a step further and completely remove the VRO2 unit and replace it with a fuel pump. Check for leaks at fuel pump inlet and outlet. Is it as simple as removing the Aug 3, 2016 · The Sierra 18-7352 is the pump with one fuel intake and one fuel outlet, the non VRO pump. Best bet is to run mixed We would like to show you a description here but the site won’t allow us. Check the fuel pressure at the VRO pump; it should be between 3 to 15 psi. OMC part number: 438559Order of hoses (from back of pump to front): Pulse, Fue Jul 18, 2008 · If fuel is weeping from it when the fuel bulb is pumped up, then you likely have a ruptured air motor diaphragm in the vro pump,as it is driven by the pressure and vacuum pulses from the engine crankcase. Jul 12, 2004 · VRO - The REAL story (long post) Walleye Boats and Motors Jul 1, 2007 · Currently replacing the fuel fuel/VRO pump on my Johnson 50 hp, 2000 model # j50plssm. Started checking at the beginning, pulse pressure from engine. Dec 2, 2011 · Re: Replace a VRO pump with a standard fuel pump A service manual will help troubleshoot the vapor seperator and pulse limiter. Jun 19, 2015 · I'm in the process of rebuilding the carburetors on my J175EXEU and would like to confirm if the fuel pump is working. Aug 28, 2011 · Re: Johnson 50hp VRO fuel pump question thanks for all the help rude1! Well from what i see the 3rd small hose on the fuel distribution block goes to the lil small black box with the red lever on the 1st pic. The vacuum and pressure guage you use must have a dampner or it will just bounce back and forth. I spoke with my local shop and they recommended to not mess with them The ROP Shop replacement VRO Conversion Fuel Pump for Johnson, Evinrude 5007420, 5007422Specs - Refer to images 2 & 3 for more informationIncludes - (1) Feb 10, 2020 · so i made a bracket for the primmer solenoid ( from the existing vro )and a new old style simple fuel pump and feed them both vacuum from the pulse limiter . We've added a length of 5/16 fuel line in case you damage a line in the transition & some proper ty straps to secure the lines. It provides the essential components to restore your fuel pump to optimal working condition. Start the engine, and monitor the pump cycles by using a fuel pressure gauge or by putting light finger pressure on the outlet hose. Any easy way to see if my problem is with the fuel pump or from pressure from crankcase? I've done compression check and around 120 on all Jul 23, 2015 · You can convert the VRO pump into a straight fuel pump, eliminating the oil tank and VRO pump warning system, but retain the overheat warning setup (and fuel restriction warning if so equipped) by doing the following: Mar 23, 2023 · Hi all, I have a 1991 Scout Sportfish 172 center console with a Johnson 115 v4 two stroke Ocean Runner outboard that I've been fixing up. It is designed for specific Johnson/Evinrude V4 90° (120-140HP) and V6 90° (most 200-275HP and some 175HP) outboard motors, though specific years may vary and require verification. Thinking of deleting your VRO system? We highly recommend it with all of our remanufactured outboards as well as outboards we service. A long standing practice was to pre-mix the gasoline and oil together in the boat's fuel tank. You are just holding the bulb TIGHT to keep pressure in the lines. Gasoline reformulation in those early years contained alcohols and solvents that softened the internal rubber components and caused pump failures and damaged Customer: How can I determine if the pulse line on my '92 Evinrude 120 HP looper is providing sufficient pressure or suction to operate my VRO pump? Mar 9, 2018 · About this item 50 Year Experienced Marine Seller Replaces Expensive & Troublesome VRO Pumps on 3 Cylinder 60 70 HP Models with a simple mixed fuel pump. . My question is since the VRO system has been removed and the fuel pump is ran off of the larger vacuum port on the bottom of the engine, can I bypass the vacuum switch (pictured)? A: Common symptoms of a failing VRO pump include difficulty starting the engine, poor or rough performance at various speeds, stalling, visible fuel leaks from the pump housing, or an inconsistent fuel-to-oil mixture. Aug 27, 2007 · Maybe someone can just explain the fuel system on my engine, a '86 Evinrude 50HP VRo. Replacing/upgrading VRO fuel pump on Johnson 50 hp outboard motor with new pump. unplug the 2 line harness going to the oil tank, unplug the 3 or 4 wire harness, going to the Vro pump. Jan 15, 2010 · Re: How to remove VRO system? VRO conversion w/ pump still working if the fuel side on your Pump is still working it is very simple. It doesn't sound like you had a bad vro. Fuel pumps work under high pressure so over time, even Johnson fuel pum ps can wear out and require replacement. Died at mid to high throttle. com FREE DELIVERY possible on eligible purchases Apr 8, 2013 · You can check the fuel pump pressure before you spend all that money on the new pump. This comprehensive guide delivers the straightforward steps to diagnose common failures, perform essential maintenance, and install a new pump yourself, saving significant time and marina costs. enjoy. My suggestion to you is remove VRO pump and replace it with regular Customer: I have a 2000 Johnson Oceanpro 115 with a VRO system. It has nothing to do with getting fuel from the float bowls to the firing chambers, that's done by vacuum from the pistons. Use a fuel pressure gauge to verify pressure at the carburetor inlet. It might save you some money. I tried operating the pump with just the starter motor (no combustion) with no success. Sep 7, 2018 · I am in the process of eliminating the two factory VRO fuel pumps and installed two double pulse pumps. Feb 10, 2019 · Here's the solution for your Evinrude & Johnson 150 thru 175 60 degree looper V6 with a sick VRO. Jul 28, 2006 · Re: vro pump test If you had a faulty vro, it is much more likely that you would have had running problems at high rpm's rather than at idle. This actually tests the integrity of the oil piston seal which usually causes the VRO to over-oil rather than dilute the oil with fuel. Replaces BRP 5007420. At 800 RPM, the oil level in the hose should drop 1" in approx. Jun 22, 2008 · Re: 120 VRO Fuel Pump Diagram/View Thanks High Trim, Any advice on my latest question? Last season my 1990 Johnson 120 VRO was experiencing fuel stavation problems. Was reading through my Clymer manual and they discuss rebuilding the fuel pump and vro pump by replacing the diaphrams, o-rings, etc. Amazon fuel pump part link. Um VRO all mixing pumps have been on Johnson Evinrude from 1980s all the way through to mid 2 thousands. Crossflow Aug 1, 2011 · Re: 1985 Johnson 120 hp replacing the VRO pump I was looking at the different years and fuel pump ratings. Use a clear hose and a vacuum gauge per the service literature. Aug 20, 2012 · Re: VRO2 Fuel pump troubleshooting Put a pressure gauge in system to check fuel pressure. thoughts? Richard VRO Replacement Fuel Pump Kit - Johnson, Evinrude 90-115hp 60-degree is backordered and will ship as soon as it is back in stock. If fuel can leak out, air can leak in. I purchased it with the VRO already deleted, but still utilizing the OEM fuel pump. Nov 18, 2009 · I am planning on replacing my broken VRO-2 with a conventional pulse fuel pump on my 87 120 V4 anybody know the part number of the particular pump I need. Iam assuming those little smaller hoses are for Jul 17, 2009 · Re: VRO or OMS testing Regardless of what the VRO pump does, it would not directly effect the idle unless you have an air leak. Change Fuel Pump HOW TO VRO Johnson Evinrude Outboard Motor Changing the Diaphragm. VRO pump that both works as fuel and an oil pump-maneuver by an air motor that uses a diaphragm and rectifier valves to convert crankcase pressure and vacuum pulses into motion for the pump's two chambers. Customer: I have a 1987 140 Johnson outboard motor, and the fuel pump isn't receiving enough vacuum to operate. There's a lot of videos that describe how to disable a VRO2 unit. Jul 29, 2010 · Re: 1986 Johnson 115 VRO conversion questions. Reeves) You can convert the VRO pump into a straight fuel pump, eliminating the oil tank and VRO pump warning system, but retain the overheat warning setup by doing the following: 1 - Cut and plug the oil line at the engine so that the oil side of the VRO pump will not draw air into its system. 3. so far so good and soooooo much simpler at the front of the motor. Simplify your outboard’s fuel system. These pumps would vary the amount of oil from 100 to 1 at idle to 50 to 1 at full throttle. Power at WOT as well as hole shot isn't what used to be just a few days ago. Not sure which hose Apr 13, 2009 · Re: 115 HP v4 VRO Johnson what is VRO? When the VRO pump first came out, it stood for variable ratio oiling. Aug 26, 2024 · Good day, guys. When the diaphragm springs a leak, raw gas migrates to the pulse side, runs down the pulse tube, thru the pulse limiter, and enters the crankcase. Is there a good "how to" guide to this? May 7, 2020 · The ROP Shop VRO Conversion Fuel Pump for Johnson/Evinrude/OMC/BRP 0435955, 0435953, 0435936. What are you waiting for? Buy now! Features: The Built-in air motor converts the pressure and vacuum pulses from the crankcase to a linear Oct 24, 2011 · Re: Johnson 50HP VRO fuel issues The VRO pump (varible ratio oiler) on these models was a good concept but they are diaphram pumps and over time begin to leak. If the boat runs on the auxiliary tank, inspect the anti-siphon valve on the fuel tank and remove the pickup tube in the tank to check for debris in the screen at the end of the tube. It sounds like the engine ran properly on the hose, you might try it with the boat backed in the water to get some back pressure on the exhaust system and see what happens. com FREE DELIVERY possible on eligible purchases Forget engine sputters and dead cylinders - your Johnson outboard fuel pump is likely repairable or replaceable. Mechanic's Assistant: Sometimes, issues that seem complicated can actually be simple to resolve. The time now is 12:10 PM. Just wondering is I need to replace the factory pulse limiter fitting for an unrestricted fitting. I'm assuming the pulse pressure was not enough to activate the unit. These pumps affect how your outboard burns fuel, and therefore, how much power it can generate. You may find a Kawasaki 2 stroke tech that has the vacuum Oil Tank and Fuel Pump: Another important part of the Johnson VRO wiring diagram involves the oil tank and fuel pump. I've seen this mentioned quite a few times, and now 2 different local outboard mechanics have also recommended it. the hose routing is correct for the pre-mix vro pump (no oil res. Mar 31, 2014 · Re: 1989 johnson 60 hp vro fuel pump question Welcome to the forum. Mar 6, 2006 · ? where does the fuel pump get its crankcase pressure from on a 150 jon 1991. Then 2 smaller fuel hoses come out of the black box with the red lever and each go to the top of each carb (please look at 2nd pic). com parts list and see if you can start to identify some of the components of the fuel system. How to convert your vro fuel pump to a standard fuel pump. I'm not convinced it's the pump yet. If the gas side of the VRO pump still works fine, then just plug off the oil side and disconnect the alarm cables and it will be fine. #boating #fishing #boat https://amzn. If gas isn't make it past the pump, which one would probably be the culprit? - The Fuel Lift Pump or High Pressure Pump? Thanks for the info. But was not getting fuel from the VRO pump. Apr 22, 2010 · I've replaced every fitting, all the fuel lines from tank to motor, cleaned the fuel tank completely, fuel filter, VRO pump, all 3 carburators have been rebuilt, basically every part from fuel pickup to the motor has been replaced with no change in how the motor reacts. Was talking about the fuel pump impulse nipple not the engine block. Replaced hoses and changed out vro fuel pump to standard pump, turns out there was a air leak in the cowling REPLACEMENT PRE-MIX FUEL PUMP KIT Replaces VRO on V6 60° Looper Outboards MTM-06-150 This replacement fuel pump kit fits V6 60° Looper models. 91 Johnson 40 hp VRO - Previous own disabled the VRO fuel pump and replaced it with a non- VRO pump. This VRO Fuel Pump Repair Kit is engineered for Johnson/Evinrude 90-115 HP, V4 60° looper engines from 1995–2006. 4-Wire replacement fuel pump kit. What makes you assume the VRO is bad? This VRO Fuel Pump Repair Kit fits Johnson Evinrude V4/V6 90° Looper & Crossflow 120-275HP models and is a direct replacement for V4690. I have a manual, which is not much help concerning switching pumps. All of my research shows its probably the fuel p This video shows a step by step removal and replacement of a VRO fuel pump on a Johnson or Evinrude outboard motor for your boat. Note: VRO is not Just a quick video to go over my 130hp Evinrude's VRO to fuel pump conversion. The electrical connections are for the "no oil" alarm only. 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. When the outboard fuel pump is bad, it operates similarly to when the boat runs out of Apr 4, 2022 · Buy Johnson/Evinrude Outboard VRO Fuel Pump 5007420 - New OMC/BRP: Electric Fuel Pumps - Amazon. Um so yeah, we'll go through the process on how to get this tested to see if it's a operating how it Mar 26, 2012 · VRO Introduction Two-stroke outboard motors have traditionally used a mixture of gasoline and lubricating oil as their fuel. But what does it actually mean? The VRO system works by automatically mixing the gasoline and oil in the correct ratio for the engine. VRO has previously been disconnected and I have been premixing. 9. Is the most likely cause of this failure the fuel pump? I removed the fuel pump and disassembled it for inspection, and the diaphragm Jun 21, 2007 · Re: vro and how does it work? What year is your engine? You will most likely find the VRO pump attached to the breather box, the pump is black and has a bunch of fuel and oil hose going into it. The plugging off of the oil lines and input would starve the shaft of lubrication, and over time, the pump would then fail. This video covers the entire process, including both the fuel pump and air motor portions of the VRO pump. cut and cap the oil line going into the motor. In the shop manuals their are steps to determine if the VRO pump is defective (leaking). This test procedure is designed to assess both the fuel pump and air motor portions of the VRO (Variable Ratio Oiling) pump. The other fuel source and squeezing the primer bulb should tell you what is going on if the spark and compression are good. Product Details This VRO Fuel Pump is a direct-fit replacement for 90–175 HP Johnson and Evinrude 2-Stroke V4 and V6 60° outboard engines manufactured between 1991 and 2006. This is a replacement VRO Fuel Pump Assembly for Johnson/Evinrude 120-300hp V4/V6/V8 outboard engines. Feb 18, 2010 · Re: 1999 johnson 90 hp fuel problem??????? the vro pumps were factory new pumps , the carbs have been serviced recently all of the work has been done by the most reliable omc dealer / repair shop in this area. Put the pump (either) on the pulse fitting on the VRO. Link is below for parts list. Aug 19, 2018 · 1989 Johnson 110 with no fuel flow. VRO Replacement Fuel Pump Assembly This pump assembly is designed to be a replacement for the expensive VRO fuel pump. This article discusses the history of OMC outboards with VRO, the theory of VRO operation, and the diagnosis and repair of common problems. We stock quality fuel pumps for most Johnson Aug 4, 2020 · 1996 Johnson Venom 200 STLEDM with VRO Disabled currently mix oil and gas trying to determine if i have a bad fuel pump. The oil tank contains the oil necessary for the VRO system to operate smoothly, while the fuel pump delivers fuel to the motor. May 6, 2009 · After an exhausting diagnostic search, he learned that the fuel pump diaphragm in his VRO pump had perforated. It was introduced by Johnson outboards in the 1980s as a means to improve fuel efficiency and make the engine more reliable. Repair any leaks before returning outboard to owner. Jun 10, 2019 · 2000 Johnson 40 (J40PLSSM) I want to replace the VRO oil/fuel pump with a standard fuel pump. You will want to ensure the pump is working but generally I don't think they don't go bad from sitting unless it's an older pump without the newer alcohol resistant rubbers. Jul 22, 2012 · Re: 1998 Evinrude 115: Fuel Pump Issue? So I can't cap off the oil lines and run premix? Seems like a lot of people do that and replace the pump with a cheap one. there are two brass plugs near the starter is one of these where the fuel pump would get its pressure had a vro before i purchased it no pump on it at all now. 2) You are looking for fuel leaks. That initial Jul 26, 2017 · A LITTLE HISTORY OMC introduced the VRO on the V-4 and V-6 engines in 1984. add oil to fuel tank, mix well, then remove fuel line at top carb, catching gas in a container, pump the fuel Jul 31, 2009 · Re: Replace VRO W/ Electric Fuel Pump How are you planning on cutting off the electric fuel pump if the motor stalls? If you just need to replace the fuel pump, replace the VRO with a standard fuel pump. Today, we're going to run through a VRO pump bench testing procedure. Each step is clearly labeled with instructions on how to proceed based on your Jan 28, 2002 · Install a pressure tester to the fuel inlet and pressurize to 6 to 8 psi. This kit also includes several sections of fuel line and zip ties for your convenience. Operate outboard and check for leaks at fuel outlet connection. You may not have a pulse limiter, BTW. From about 1/3 throttle or higher, it bogs down and seems starved for fuel. Nov 16, 2008 · As a result, some owners of OMC engines with the VRO feature have disconnected the pump and reverted to pre-mixing. Buy Carbhub 5007420 VRO Fuel Pump for Johnson Evinrude VRO Oil Injection Conversion Fuel Pump Kit 5007420 5007422 90hp-250hp Loopers v4 v6, Replaces 5007420, 5007422, 4-7359, 1399-07359: Electric Fuel Pumps - Amazon. Easiest to tie it in by disconnecting the primer solenoid supply line and plugging in We would like to show you a description here but the site won’t allow us. Each step is labeled, and instructions are provided on how to proceed based on the results. Pump it to 15 psi or 15 hg and then put your finger over the fuel outlet fitting. If you do order the pump and plan on running premix Evinrude makes a pump that looks like the vro pump but without the VRO feature. Having to hit the "choke" to accelerate is more VRO Troubleshooting 1987 90-HP Johnson - Moderated Discussion Areas Hop to: The air motor diaphragm kit is part number 435921 and the fuel pump repair kit is 436095. It is designed for 2-Stroke V4, V6, and V8 models, including 90° Looper and Crossflow engines, primarily from the 1990s to the early 2000s. Inside you will find May 11, 2018 · VRO Fuel Pump 5007423 for Johnson Evinrude Outboard OMC BRP 0174619 0174563 FP15 Visit the USonline911 Store Report an issue with this product or seller Page 1 of Oct 17, 2015 · This results in an average fuel to oil ratio of 78:1. So last ditch effort I've just rebuilt the fuel pump. I've tried three different fuel pumps along with various fuel tanks and hoses, but I'm still not getting any fuel pressure. The issue I'm experiencing is that when I prime the fuel ball, it loses pressure after about one minute of engine operation. Check the fuel pump and fuel filter for clogs or wear. Low or high fuel pressure can cause rough idling, stalling, or poor acceleration. Please review all product information to ensure that this product is compatible with your unit. Any help would be appreciated. This is because, naturally, the motor needs more fuel at high rpm's than it does at idle. We would like to show you a description here but the site won’t allow us. Jul 22, 2018 · I have an 89 Evinrude XP 150 TE150SLCEM that has had the VRO system removed and a regular fuel pump installed (EMP 1399-07359). Suggestions for updating older motors are included. Shop the New WSM / Johnson & Evinrude 1991-2006 150 & 175 HP 60° V6 Outboard VRO Fuel Pump (Fuel Only, No Oil). Conduct a compression test. 1989 J40TLCEC Johnson Outboard FUEL PUMP AND FILTER ROPE - TE - TTL Diagram and Parts Might need to check fuel hoses and fuel pickup in tank for blockage. This VRO Fuel Pump – Fits Johnson/Evinrude 60° Outboard Motors is an aftermarket replacement part designed for Johnson and Evinrude 60-degree V4 and V6 two-stroke outboard motors, covering 90 HP to 175 HP models from the 1991–2006 model years. VRO Fuel Pump Replacement Kit – Fits Johnson/Evinrude 60° V4 90-115 HP This fuel pump assembly is designed to replace the original VRO pump on Johnson and Evinrude 90-115 HP, 2-Stroke, V4 60° Looper outboard motors. Carbs were just cleaned, fuel is brand new with seafoam added. The overly rich fuel charge fouls the #6 Johnson Evinrude VRO pump discussion (beer talk uncut ) How to Remove and Replace a Johnson or Evinrude VRO oil Pump with a Direct Fuel Pump How to build a 56ci short shaft OMC with power trim Jul 21, 2013 · Re: Help !! Johnson 150 vro problem poss fuel pump ?? Have you tried to pump the primer bulb when the problem happens? You could plumb in a fuel pressure guage and see if you are loosing fuel pressure. The way you described your problem it's going to hard to give any advice. This required careful calculation and measurement of oil and gasoline, and The fuel pressure on the VRO pump is 3-15 psi. Yesterday I replaced all of the old hoses and when I was reinstalling the How do you know if the fuel pump on your outboard motor has gone bad? Find out about some ways to test the fuel pump on your outboard here. Of course you have to test the boat's plumbing system first to make sure the pump is receiving gasoline OK. Mastertech Presents: 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! All Pumps On This Page Require Pre-mixing 50:1 fuel/oil in fuel tank! Jul 5, 2007 · Well from what I understand, the stock fuel pump gets eliminated along with the vro unit. 40 45 50 55 60 65 70 75 80 85 88 90 95 100 105 110 115 120 125 130 140 15 We would like to show you a description here but the site won’t allow us. 8 Copyright ©2000 - 2023, Jelsoft Enterprises Ltd. Use this chart to identify the correct VRO replacement fuel pump to replace your aging VRO! Feb 4, 2019 · Connect fuel tank hose to outboard and squeeze primer bulb until definite pressure is felt in the bulb. Just lay aside the VRO oil warning leads wiring harness. Had to make a Mount. Jul 13, 2013 · I have an '85 v4 140 horse vro, oil injection already discounted and been mixing 50:1 for 2 years without any problems until recently. Non-oiling fuel pump alternative for the VRO System pumps. What I'm unsure about is whether I should remove the VRO pump and install a new fuel-only pump, or if I should just continue using the current VRO pump without the oil hookup? Jan 11, 2013 · I've got a 1985 Evinrude 140HP looper, and I have heard that the VRO system uses a common shaft for the fuel and oil pumps. The pump number 038268 was used on motors 115hp to 140hp in 1983. I was confident the OMS oil pump was pumping oil. OMC eventually discontinued their production and switched to an OMS pump which pumps oil at 50 to 1 regardless of what rpm the engine runs. Powered by vBulletin® Version 3. A quick test to check the diaphragms is to put a vacuum and a pressure pump on the pulse fitting on the VRO. I can't blow or suck air through the nipple ( VRO fuel pump removed from boat) but I thought I should have been able to suck air given it should suck fuel. Jul 18, 2017 · Pump up the primer bulb till its hard and SQUEEZE while looking at the VRO pump and the fuel lines. We carry 4 different variations of these pump assemblies to fit all models with VRO fuel pumps. 1 day ago · Use these test procedures to test and find out if your Johnson Evinrude VRO pump is operating correctly. https://amzn. What are you waiting for? Buy now! Features: The Built-in air motor converts the pressure and vacuum pulses from the crankcase to a linear May 13, 2004 · Re: Vacuum/Pressure Signal and VRO Pump Operation The pulse pressure on a good engine with no leaks should be close to 6 lbs. Jun 5, 2023 · About this item Oil Injection Fuel VRO Pump Kit for Johnson/Evinrude OMC/BRP 4 Wire Application: for Johnson 1991- 2001/Evinrude 1991-1998/OMC/BRP OEM Number or Interchangable Part Number: 5007420, 5007422, 175109, 436203, 438094, 435560, 438400, 435953, 435556, 435558, 435784, 0175109 Description: 1. Trying to switch fuel pump to a non-VRO type. Sep 4, 2022 · Buy UanofCn V660 Fuel Pump for Johnson Evinrude V6 60 Degree Looper Outboard Motors 150-175HP VRO Pump: Electric Fuel Pumps - Amazon. It replaces the VRO pump mounted to the vapor tank/bracket system, mounting directly to the tank/bracket in place of the VRO pump using our custom-made bracket and custom aluminum hose fitting. Fuel Pump VRO Replacement Non-Oiling V6 60 degree Johnson / Evinrude 5007422 VRO system conversion non-oiling fuel pump for 90hp-250hp Suitable for Johnson & Evinrude outboard motors Fit for V6 Crossflow and Looper engines Does not fit 60° applications Tough fix. Richie here from promtparts. I wanted to get an idea of what others might be running for pressures. These assemblies can only be used if you are to premix your gas and oil in the fuel tank. com FREE DELIVERY possible on eligible purchases All times are GMT -7. i just got all this finished right at the start of covid 19 and had limited access to the launch ramp so the final Oct 4, 2013 · Re: Testing VRO Pump. Any suggestions Feb 18, 2019 · This VRO system conversion non-oiling fuel pump for 90hp-250hp Johnson & Evinrude Outboard motors,fits V6 Crossflow and Looper engines but DOES NOT fit 60 degrees applications. Replace faulty fuel pumps or clogged filters promptly to maintain optimal engine performance and prevent What happens when you have a day planned on the water, but the outboard engine doesn’t seem to run right? If you know how to troubleshoot a bad outboard fuel pump, your day doesn’t need to be ruined. This VRO Fuel Pump Conversion - Fits Johnson/Evinrude 90-250HP Outboards (Replaces 5007420, 5007422) is a non-oiling replacement kit for Johnson/Evinrude 90-250HP, 2-Stroke, V4, and V6 outboards (90° cylinder block) manufactured between 1984–1996. Used on all motors except 2 cylinder 40-50 HP May 8, 2012 · Re: 89 Evinrude VRO Fuel Pump test Do not apply voltage to the VRO pump! The VRO is not an electrical fuel/oil pump, but is powered from pressure/vacuum pulses of the bottom cylinder crankcase. However, I expected a fuel to oil ratio closer to 60:1. Johnson Fuel Pumps Boat fuel pumps carry gas from the fuel tank to each engine cylinder. 1998 and later model "VRO" pumps are rebuildable if needed. not sure about it operating with too high of pressure. It includes part numbers 5007420 , 5007421 , 5007423 . I've attacked all the usual suspects (new lnes, filters, water spearator, anto-siphon, fresh fuel, etc, etc). Any thoughts on whether oil consumption is appropriate for my estimated running time at the above speeds? I understand the OMS oil output is "somewhat leaner at idle. JLM Marine VRO fuel pump rebuild kit replaces 3CV4 for Johnson/Evinrude 3-cylinder 60-70 HP and V4 Crossflow engines pre-1984. For those who pre-mix their fuel and oil, these kits allow the repair of the fuel pump section, avoiding the high cost of a new assembly or the re-plumbing and rigging of one or two traditional style fuel pumps. It serves as a direct-fit, non-oiling replacement, requiring the use of premixed fuel. as the piston goes up down it creates pressure and vacuum and the check valves in the VRO directs to which side of the air pump diaphragm gets the vacuum or pressureI have no idea how much pressure or vacuum that pulse port puts out. From my research, found that 1983 was the last year for non vro pumps for your style of motor. This means taking your boat and motor to a nearby body of water, tying the boat to the dock, rigging the test equipment Jul 29, 2011 · Re: 50HP Johnson VRO FUEL PUMP ?!?!?! Go to the "Top Secret" file at the top of this Forum, go to VRO Conversion, and it explains the VRO and a different pump install. How does the system work, including primer system? Does the engine pulses create pressure in the pump? Does the primer use any The 2000 Johnson 115 outboard typically requires a fuel pressure of about 3-5 psi. It is a direct-fit replacement for carbureted models, designed to convert the original VRO oil injection system to a more reliable standard fuel pump that uses a premixed fuel/oil blend. I dont want to flood and I also dont want to lean out @ high rpm. OEM replacement fuel pumps FPF 180 LPH fuel pump FPF 265 LPH fuel pump Walbro 255LPH Fuel Pumps CNT 255LPH Fuel Pumps Strainers and accessories FPF fuel pump hangers May 7, 2020 · About this item The ROP Shop VRO Conversion Fuel Pump for 1998 Evinrude, Johnson 115 HP HJ115SLECM Engines Specs - Refer to images 2 & 3 for more information Includes - (1) Vertical Ratio Oil Injection Conversion Fuel Pump; comes as shown in the first image Fits V4 & V6 Crossflow & Looper outboard engines with 90° angle cylinder block. The pump consisted of a combination oil pump and fuel pump actuated by crankcase pulses through an air motor. With the old vro off the motor, you can inspect the plastice body for cracks, and then disassemble it. VRO Replacement Fuel Pump for 90 degree* Johnson/Evinrude V4, 90-140 Hp looper and V6, 150-235 Hp looper/crossflow outboards. Um quite a common part that gets overlooked on techs, test and checks. This didn't help. I bought an engine in a crate, had cylinders nachined and got it all put together. The VRO has been taken off and a different fuel pump put on, from what I gather. You get the fuel pump as shown, as well as the support of the MasterTech. 1) it should not keep squeezing down because the carb floats should stop fuel flow. As I thought, now the issue becomes after 1986 it seems all of the larger motors used the VRO system, so maybe two of the smaller pumps or how about an electric fuel pump from a car, it is 12 volts and can easily handle the volume. You can convert it to use a regular premix fuel pump, if you do a search you will As a boater, you may have heard about VRO or Variable Ratio Oiling system. I'm planning to remove the VRO tank and disconnect everything. Sep 4, 2022 · About this item Replace Johnson Evinrude outboard Fuel Pump Fit V4 60 Degree Looper Models 90-115hp It replaces the VRO Fuel Pump mounted to the vapor tank or bracket Package Kits Include Fuel Pump with Aluminum bracket 5/16" hoses and zip ties detail Detailed mounting instructions The pump and bracket material will not crack or deteriorate as plastic fittings might Mix gasoline and oil 50:1 5 days ago · View a VRO troubleshooting chart to test and verify problems with your Johnson Evinrude VRO pump Hello people, I had problems with my boat in low speed and here is how I fixed. ? Want to confirm this Apr 10, 2014 · Can use this fuel pump if block has the screw holes and center hole for pump, would need fuel pump mounting screws, mounting gasket and possible change some of fuel hoses. I checked the fuel filter and it was clean. ) all gas is pre mixed in the tank. Dec 19, 2010 · Re: 200 Looper fuel pressure Your "VRO" pump should be putting out between 5psi and 15psi depending on conditions. I've already replaced the fuel filter and installed a new primer ball. 2. You might look on the crowleymarine.