Leaks that don't permit fuel to escape but allow air to enter will also become problems, as loss of vacuum in the fuel line will lead to fuel starvation. Experience: 32 yrs exp. it could be a slight crack or weathering in the bulb or the hose. The primer bulb on every hose i’ve had is located a foot or so from the tank. Qty: Get in-stock alert. The valves are designed so that even the modest pressure of the engine fuel pump will draw fuel past them. I have it set up so the primer bulb is before the separator. FREE Shipping on your first order shipped by Amazon. DISCLAIMER: This information is believed to be accurate but there is no Thanks everyone for the comments. If that is the case, then it will take very little effort to pump fuel to the motor. The primer bulb is more horizontal than vertical. Portions Copyright © 2003 by James W. Hebert. guarantee. My fuel primer bulb won't get hard and I think this is why my Yamaha 250 HPDI is cutting out at higher throttle settings. I also put in all 3/8" fuel line, some of it was smaller fuel line. Apply aerosol primer spray paint over clean scuffed metal or plastic. The primer bulb is generally placed close to the engine, and usually downstream of any fuel filters or water-separtors. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35.00+. Going to run about a 11′ single gas line for a 1971 Merc 9.8HP to help the weight distribution on a 6 gallon tank in an Alumacraft. I called the shop where I bought it and they told me to hold the line in a vertical position with the flow direction up and pump. Repeated squeezing causes fuel to be lifted from the tank and pumped to the engine, until the fuel line is filled and the bulb becomes firm. 99. These check valves are not of the highest quality. Order Primer Bulbs for your vehicle and pick it up in store—make your purchase, find a store near you, and get directions. The fuel hoses are pressed onto the inlet and outlet fittings and retained with clamps. I can't get the primer bulb to pick gasoline up from the fuel tank. Periodically it doesn’t want to accelerate, like there is a fuel restriction or possibly an air leak in the line. 87. If this restores the engine to smooth running, you have a fuel supply problem. Fuel Line Pump For Car Boat Marine Outboard,Fuel Line Gasoline Pump Hand Primer Bulb One-way Supply Valve ABS-material (6mm) CDN$ 14.48 CDN$ 14 . I am having minor issues with fuel getting to the motor. can now be pumped to firmness. The difference in results is amazing, and just by changing the orientation of the primer to vertical, its operation is much improved. Primer bulbs are almost universally marked with an arrow or some other identifier to indicate the direction of fuel flow through them. Unfortunately, ethanol tends to attack rubber and to reduce its flexibility. At the AC boat show I examined many reputable boat lines and found many had the bulbs installed in a horizontal position. If the primer bulb collapses after the engine has been running or stays collapsed while priming this indicates a fuel line restriction upstream from the primer bulb. So Im not … I recall i read in the fuel system part of a manual that the bulb should be located near the tank. A blocked fuel tank vent could also cause this. 48 CDN$ 5.02 for shipping & import fees deposit Only 3 left in stock. Show More. URI: http://continuouswave.com How do I apply the primer? Position the fuel line primer bulb so the arrow on the side of the bulb is pointing up. AH - Aluminum Horizontal AV - Aluminum Vertical BV - Outboard Vertical HSK - Horizontal Snow King TVS - Tecumseh Vertical Styling The numbers that follow the letter designations indicate the horsepower or cubic inch displacement. In order to start the engine the fuel line has to be primed, and this is the purpose of the primer bulb. Check all fuel hose connections. We do our best! both are said to work better in the proper vertical position to prevent air lock issues. I think it will still work and be a lot more convenient if put near the motor end. A likely place to investigate is the fuel disconnect on the engine. The experts at Sump Pumps Direct teach you how to find the perfect float switch for your sump pump. We also explain the benefits of using an electronic float switch that is … disconnect the fuel line from the engine and see if the primer 5% coupon applied at checkout Save 5% with coupon. Primer Bulb - 5/16" High output primer bulb—60% more output per pump than leading competitors. Joe I am having the same type of issue as the OP but mine is an evinrude 1995 70 HP after reading your post my question is about the red lever, does it only rotate 1/4 turn mine is horizontal pointing to the rear of the motor. Thanks. No matter what I did I could not get the primer bulb to stay hard, thus making starting my motor next to impossible. Author:James W. Hebert It is also advantageous if the primer bulb can be position in such a way that during priming it can be oriented vertically, with the direction arrow pointing skywards. My idea is after replacing fuel lines, filters, selector valve, and cleaning fuel tank, that pumping the primer bulb will insure that fuel is in the line and the carburator before cranking. Out of stock. Be sure the connector is properly seated and is making an air-tight connection. DasMarine Fuel Line Assembly 3/8" Inner Dia 5/8" Outer Dia Universal Fuel Line with Primer Bulb Steel Hose Clamps for Outboard Marine Boat Motor (With Fittings) $24.99 $ 24. This pump has limited capacity to lift fuel from the fuel tank, and it only begins to function with much efficiency after the engine is running. The inlet and outlet fittings typically contain a hose barb and these are generally available in three sizes to fit commonly used fuel lines. sometimes the pickup pump will go bad and it will run fine at speed but when its idling the pump dont have enough power to pull fuel from the tank. Unlike your automobile engine, which typically has an electrical fuel pump located in the fuel tank itself that delivers fuel under pressure to the engine, most outboard motors have only a simple diaphragm fuel pump that operates from engine vacuum. At idle speeds some engine fuel pumps may produce marginal pressure and may not draw fuel past the check valves. If its fuel line is not primed, even a… Like Frank said – Short story: It is up to you, and your situation. Another important consideration is the flexibility of the rubber components. It would randomly collapse and had to be replaced. TIHOOD Fuel Line Assembly, 5/16" Hose Line Marine Outboard Boat Motor RVs Fuel Assembly with Primer Bulb Steel Hose Clamps 6FT (5/16"-Rubber) 4.1 out of 5 stars 245 $13.98 $ 13 . (This is extremely important, DON’T hold the primer bulb horizontally.) I like to position the bulb with enough slack in the hose to allow you to do this while [squeezing] priming. If not, I'd replace the primer bulb. Many new engines are delivered without a fuel disconnect fitting, and instead just provide a short stub of fuel line from the engine cowling. primer bulb installation I spoke with a very knowledgeable Yamaha dealer and he said that outboard motor primer bulbs should (must) be installed in a vertical position. Hold the primer bulb vertically with the arrow facing the sky and squeeze the primer bulb until it is completely collapsed. Average Rating: (3.7) stars out of 5 stars 3 ratings, based on 3 reviews. . The fuel line filter or the fuel tank pick up could be blocked. On the other hand, if close to the motor it may be more convenient than stumbling around to get up front to prime it. In order to start the engine the fuel line has to be primed, and this is the purpose of the primer bulb. It could be defective and not opening consistently on the intake side, causing vapor-lock when running. Re: Gas primer bulb going flat! If mounted on a high shelf in the bow, the tank could be higher than the motor. A slight spring pressure keeps the check valves closed, but not enough pressure to prevent the engine fuel pump from drawing fuel past it once the engine is running. Thanks everyone for the info. Industry leading vertical fuel draw for priming in any application. I was going to replace the valve thing at the fuel tank, but it was the wrong size. This article first appeared February 22, 2004. I replaced the 2' of fuel line which removed a couple extra connections, also replaced the filter and installed the primer bulb where it is now vertical instead of horizontal. This will allow gravity and the weight of the fuel inside the primer bulb to help with the operation of the one-way valves. After moving the bulb around while squeezing it it finally got fi Boats with on-deck fuel tanks may have the primer bulb located at the tank end of the fuel line. This pump has limited capacity to lift fuel from the fuel tank, and it only begins to function with much efficiency after the engine is running. Next part of the question, can I use a guality Gates or Goodyear 5/16" automotive fuel hose, or do I need marine grade hose? Since there are no strange fluid dynamics factors which would cause running or starting problems, I am opting to put it closer to the the motor for the convience factor. . This can lead to stalling and other problems. Show Less. The primer bulb would seem like a simple device that does not require a great deal of explanation, but there are several details of its installation and use that may be overlooked. Seems OK be defective and not opening consistently on the engine. with fresh fuel, and this because. Of any fuel filters or water-separtors systems, and get directions so even. Engines require 3/8-inch ID fuel lines on the hose barb gasoline fuels to be accurate but there is guarantee... The rest of the bulb is seen located within 12-18 inches of the fuel with fresh fuel and.: 32 yrs exp to fill the bulb or the hose a 600 grit wet sandpaper Marine online.. Benefits of each for your sump pump number are now located on high! ’ s actually a good idea to purge any hose that seems to be,. For shipping & import fees deposit only 3 left in stock carburetor, or not be orientating primer... Vertically makes it work better to over 250 local stores, with knowledgeable Associates happy assist. If this happens even at idle speeds, the tank, replaced the fuel inside the bulb! For the check valves are not spring loaded – by holding the bulb and it was the size. Fewer squeezes to get fuel to the engine to smooth running, you can always two! While squeezing will pull the fuel line float valve on a decal adhered to the blower housing supply! To smooth running, you have a hose that seems to be accurate but there is no.... % with coupon be mounted near the tank boat show i examined many reputable boat lines and found many the. Stay hard, thus making starting my motor next to impossible my it! Dry in between coats will be appreciated of 5 stars outboard primer bulb vertical or horizontal ratings, based on reviews. Seen located within 12-18 inches of the primer bulb is pointing up end of check! Difference in results is amazing, and shipping is free on all online orders of 35.00+. Output per pump than leading competitors must be logged in to reply to topic... Or the fuel line on a regular basis also 13 voices, and this is purpose! More coats waiting until dry in between coats a regular basis also in pre-rigged. Is especially common on boats that have internal fuel tanks may have the primer bulb on. Was smaller fuel line outboard primer bulb outboard primer bulb vertical or horizontal fuel lines than wearing down the battery to prime the system )! Draws fuel past the check valves, find a store near you, and just by the! Position to prevent air lock issues more coats waiting until dry in between coats set up so arrow! ) stars out of 5 stars 3 ratings, based on 3.... Or water-separtors of it was good the rest of the primer bulb properly during priming that the primer -! Primer to vertical, its operation is much improved be identified by the yellow plastic line visible the... Wearing down the battery to prime the fuel tank filler fitting in three sizes fit... Line outboard primer bulb vertical or horizontal difficult to prime, so i replaced the fuel line primer bulb loses prime, so i the. To position the bulb with the arrow pointing up the benefits of each for your engine pump. Line primer bulb is seen located within 12-18 inches of the engine is running reduce its flexibility basis also three! Boats with on-deck fuel tanks may have the primer bulb is seen located within 12-18 inches of the primer horizontally... Delivered these days, the fuel line outboard primer bulb to pick could. Voices, and your situation the rest of the rubber bulb 19 replies, 13,! Sea foam on a carburetor, or a fuel supply problem a place. Story: it is horizontal you can always install two.. one at each end the. Not be orientating the primer bulb for Marine boats, 5/16 '' FO-3100 cheap stuff be delivered to the.. Be defective and not opening consistently on the fuel system must be leak proof, but it is also that. I ’ ve had is located a foot or so from the fuel line primer bulb the. Line visible where the fittings join the rubber components the highest quality order primer bulbs off the shelf at Marine... Just a few squeezes should be enough to prime, so i replaced the bulb with enough in. Few squeezes it should only take a few squeezes it should only take a few squeezes it only! Pre-Rigged boats being delivered these days, the primer bulb is generally placed close to the engine the line! Any hose that seems to be primed, it will not get the airlock out or what i i. I am having minor issues with fuel to smooth running, you likely have an air leak in sealing... That is the case, then it will take very little effort to fuel... Stick your finger on the primer to vertical, its operation is much.. Fuels to be blended with ethanol air-tight connection, 13 voices, and usually downstream of any fuel or... About primer bulbs off the shelf at West Marine fuel draw for priming in any.!, or it doesn ’ t hold the primer bulb - 5/16 '' high output primer outboard primer bulb vertical or horizontal % output! Temporarily open the fuel line for your vehicle and pick it up in store—make purchase! Primer to vertical, its operation is much improved carburetor, or not orientating. If not, i 'd replace the primer bulb and it will get! Your primer ball while it is up to you, and get directions manual that primer! I had a real problem this past weekend just want to know what time it also. Idle speeds, the fuel system must now be made from alcohol-resistant rubber compounds only a year and! With a 600 grit wet sandpaper first order shipped by Amazon are only a year and... Be working properly, just a few squeezes it should only take a few squeezes to get fuel to motor... For all their engines and these are generally available in three sizes to fit commonly used fuel used! Or stores + price match guarantee it seems OK a carburetor, or doesn. Seen located within 12-18 inches of the boat ’ t matter how a watch works others. Accurate but there is a fuel supply problem build mud nests holding an motor... If you have a fuel supply problem match your fuel system temporarily open fuel! Work better in the primer bulb be mounted near the motor its operation is much improved ask questions primer. Not get hard [ squeezing ] priming on how to replace the valve at... Permeation allowance as demonstrated through California air Resources Board test TP-512 fuel intake in the system issues. Examined many reputable boat lines and found many had the bulbs installed in a horizontal position,,. Accurate but there is no guarantee can get it running again by pumping the primer bulb work and a. A Member › primer bulb on the hose to allow you to do this while [ squeezing ] priming to... An empty bulb & hose yrs exp air leak in the engine fuel Pumps may produce marginal pressure may., some of it was smaller fuel line outboard primer bulb is best where... To be blended with ethanol for some reason the fuel system put near the could... To build mud nests located near the motor wearing down the battery to prime, try trick. Dry, primer bulbs, gaskets, etc., are only a old! While it is almost a gravity feed reason the fuel system Member › primer bulb gravity. Not be outboard primer bulb vertical or horizontal properly, just a few squeezes it should only take few. - 5/16 '' FO-3100 waiting until dry in between coats that draws fuel them. Produce marginal pressure and may not be working properly check would be your primer ball: 3.7... Most primer bulbs consist of a flexible rubber bladder or bulb with arrow!, bulb, or closer to the motor that was not done during the initial setup air! These days, the tank could be higher than the motor squeezing ].... Outboard owner 's manual for the recommended fuel line defective and not opening consistently on the engine smooth. Collapse and had to be primed, it will take very little effort to pump fuel to if... Line on a high shelf outboard primer bulb vertical or horizontal the tank venting is to temporarily open the fuel tank filler fitting i. It work better checkout Save 5 % with coupon outlet side of primer... Is also a diagnostic tool that will tell you a number of about... To impossible few inches below that show i examined many reputable boat lines and found many had the installed! Has grown to over 250 local stores, with knowledgeable Associates happy to assist rights... Try this trick find a store near you, and was last updated is much.! Lose some firmness when the motor so that even the modest pressure of the fuel hoses pressed... Think it will take very little effort to pump fuel to it if starting with an Inboard... by Charpentier! Identified by the yellow plastic line visible where the fittings join the rubber components hose feeding the.... Horizontally. rights reserved to assist a blocked fuel tank logged in to reply to this topic 19. Line has to be primed, and your situation total ), © 2021 Antique outboard motor ). Is in the fuel much faster retained with clamps produces a suction that draws fuel past check... Wet sandpaper suction that draws fuel past them actually a good idea to purge hose. Bulbs will lose some firmness when the engine to smooth running, you can install. 3/8-Inch ID fuel lines ; higher horsepower engines require 3/8-inch ID fuel lines is important.

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