What's the difference between Koolaburra by UGG and UGG? The carburetor is a part of the engine that mixes fuel and air together to make a combustion. Other options New and used from $13.06. A primer bulb is important because it is helps to fill the carburetor with the correct amount of fuel. It will not stay "hard" while operating but if you can pump for that long then best replace the bulb with a genuine one-not a cheap aftermarket one-they cause more problems then they are worth. 08-22-2016, 07:56 AM. Primer bulbs aren't meant to stay "hard" , they are designed to pump fuel to the motor before start up and then the fuel pump does the work, and while that is happening the bulb will not be hard. Vinyl, Floating Boat The primer bulb is downstream of the external RACOR fuel filter. If not, is there any other fuel pump besides the VRO pump? Any help on how to get the airlock out or what I should try will be appreciated. Battery Charger, Marine Audio & He replaced the unit, fuel filter and fuel water separator and said we were good to go. pumped it up and it was good the rest of the day. Transom Deals, Dealer Accessories, Big Jon Primer bulbs do NOT stay hard after the engine is running. Senior Swabby. For a better experience, please enable JavaScript in your browser before proceeding. Press and release the primer bulb three times with your finger to prime the lawnmower carburetor. They get hard when you pump them up because you are pressurizing the fuel going to the carb/fuel injectors. Topic: Primer bulb won't stay hard (i.e., fuel line problem) David Jenkins: posted 06-11-2003 08:29 PM ET (US) Yesterday, while working on the boat in the driveway, I noticed that the primer bulb was not hard so I squeezed it a few times to fill it with fuel. Axles, Boat Trailer Tie My f115 is doing the same thing. Seats, Pontoon Boat Seats & Pumps, Livewell Aerator Pumps In a few squeezes the mechanic had the primer bulb as hard as a rock, primed with fuel! Related How to Replace the Fuel Filter in a MerCruiser Engine . Where - Answered by a verified Marine Mechanic Generally it is not necessary to operate the fuel primer bulb prior to engine start. Starters, Marine Solar Power I always try to locate the primer bulb between the fuel tank and the water seperator/filter. $15.99 $ 15. Squeeze bulbs on outboard motor fuel hoses prime empty fuel lines so that the outboard engine’s integral fuel pumping system, which only works with liquid, can pull the fuel from the fuel tank to the engine. Are LED bulbs more energy efficient than CFL bulbs? No fuel at your carburetor can be caused by many things. it should stay pressurized for the complete trip, if u are having to pump it up several time on the same trip u may have other problems. Instruments, VHF Radios & Accessories, Marine Electrical Covers, Other If no fuel flowing replace the fuel pumps. You should never need to use the primer bulb unless you run the fuel tank dry or let the boat sit up several months. 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. See Full Answer 9 5 30 Related Question Answers Found How do you replace a fuel line on a chainsaw? Primer bulbs aren't meant to stay "hard" , they are designed to pump fuel to the motor before start up and then the fuel pump does the work, and while that is happening the bulb will not be hard. 99. I replaced the bulb and it will not get hard. As mentioned, the filter will also keep debris out of the primer. 06-17-2012, 05:02 PM. I have installed primers in both locations with no issues. IS YOUR Briggs and Stratton engine Priming correctly? I checked the fuel primer bulb and it was fairly hard. Most small engines will not start if the carburetor is dry. I found an inline return filter to be cracked. They go flat. Rafts, Paddle Smoke No fuel can flow, the bulb fills with gas, hard bulb. Maintenance, Fiberglass & Epoxy 4.4 out of 5 stars 1,094. Why is my boat motor sputtering? Copyright © 2019 IBOATS. What causes an outboard motor to lose power? By continuing to use this site you consent to the use of cookies on your device as described … The primer bulb on small engines is a small plastic piece that, when pressed down, draws fuel from the fuel reservoir and into the carburetor. 4.6 out of 5 stars 25. I took it out to the lake run it at WOT, no issue. All, Anchor & Thanks. How do you troubleshoot an outboard motor? 83 115 - primer ball won't stay hard, engine shuts down. Make sure that the primer bulb is on the engine side of the water separator bracket. Deals, Pumps & Plumbing 3.6 out of 5 stars 15. GPS Chartplotter and Fish Finder Combo, Find Oars, Wakeboard, Wakesurf & It is a cheap fix to replace a primer bulb. How do you get air out of boat fuel line? Blocks, Marine If you're pumping it up that hard, you're only putting your fuel system under pressures it was not designed to withstand. amuller US Member - 2 Years Replies: 976 Topics: 156 November 6, 2016 at 4:59 pm … 06-17-2012, 06:18 PM. Systems, Lowrance Hook2-4 GPS Do primer bulbs need to be filled with gas? Thanks, CREATE Is there supposed to be some kind of check valve in the body of the primer base? Seats, Offshore Boat In order to start the engine the fuel line has to be primed, and this is the purpose of the primer bulb. sosmerc: posted 09-30-2008 12:14 AM ET (US) here's my take on the situation regarding location of primer bulbs. Primer bulbs aren't meant to stay "hard" , they are designed to pump fuel to the motor before start up and then the fuel pump does the work, and while that is happening the bulb will not be hard. Combos, Fishing Tools & Accessories, Electronic Navigation Winches, Boat Motor Supports & Dock, Cabin and Does Hermione die in Harry Potter and the cursed child? Terminals, Marine Fuse Blocks & Motors, Fishing Downriggers & Screw a compression gauge hose into the spark plug hole. If the fuel pump has a hole in the diaphragm it will not allow the primer bulb to get hard and the engine will run out of gas if the fuel pump is bad. Protection, Dock Storage & That could be why your boat, A primer will pump a small amount of gas into the carburetor. When I re-rigged the fuel lines, I had inadvertently changed the location of the primer bulbs so that the orientation of the arrow in the bulbs pointed downward. Hello , I am having problem with 2004 TXrc 150 hp starting. From smooth sailing to a bumpy ride Sputtering or misfiring is another sign that the fuel pump may be on its way out. Agreed, the primer bulb is not supposed to stay firm. Switches, Shore Power & AC With the arrow on the primer bulb facing the sky or holding the primer bulb vertically up or down. & Sonar, Trolling Just bothers me that the bulb is kinda dry. If you squeeze ANY bulb after the engine is running it will feel soft. Honda 5hp Outboard, Boat Cable, Marine Batteries & Post back with questions and concerns before rating please. So yes it does matter. Accessories, Boat Sockets, Marine Electrical Re: Primer Bulb won't stay hard. Hardware, Marine Boarding, Paddles & Does a fuel injected outboard need a primer bulb? $24.49 attwood Universal High-Output Primer Bulb, EPA and … The engine has a vapor separator tank that hold fuel and an electric fuel pump. I noticed my primer bulb won't stay hard on the engine side so for me that's my only clue. So it sounds like you have a bad fuel pump. When the pump is not providing fuel consistently you will experience sputtering and may even find that the engine dies while the machine is still in motion. Covers, Boat Seat & Dock, Anchor Chains & Distribution, ProMariner ProNautic 99. Any help on how to get the airlock out or what I should try will be appreciated. I replaced the bulb and it will not get hard. Should primer bulb stay hard? 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. Pump the bulb until it is firm to the touch. Deals, Boat Seats Afterward, inboard/outboard (I/O) owners should remember to vent the engine box thoroughly before restarting. Jimmy Jig. Helm Seats, Shop It does this by pulling fuel through the fuel line. It may not display this or other websites correctly. If you're pumping it up that hard, you're only putting your fuel system under pressures it was not designed to withstand. You may need to fix or replace your primer bulb if: It is not creating proper suction. & Live Bait I have cleaned all4 carbs. Bilge Pump, Tires, Rims, & Hub Ogrmar Fuel Line Assembly 3/8" Inner Dia 5/8" Outer Dia Hose Line Marine Outboard Boat Motor RVs Fuel Assembly with Primer Bulb Steel Hose Clamps 6FT. Primer bulbs aren't meant to stay "hard" , they are designed to pump fuel to the motor before start up and then the fuel pump does the work, and while that is happening the bulb will not be hard. Covers, Boat Wiring & It only delivers the fuel to the engine. There are a number of things that can cause this. & Rings, Prop Nut Kits & After the engine starts, that pressure is gone and the bulb acts just like it's a hose. Savers, Boat Trailer Guides & Tackle Boxes, Fishing Bait & OEM Yamaha Outboard 5/16" / 8MM Fuel Primer Bulb Assembly 6YK-24360-72-00. Plumbing, Anchor Meters, Marine Electrical Panels Biminis, RV & Trailer The engine has a vapor separator tank that hold fuel and an electric fuel pump. Trying to fix a 2 cycle grass trimmer/edger. Parts, Inflatable You should never need to use the primer bulb unless you run the fuel tank dry or let the boat sit up several months. Anchor Box Anchors, Fishing Rod & Reel Parker Yacht. Covers, Boat Cover Agreed, the primer bulb is not supposed to stay firm. If it should rupture it is better to have it above or in the splash well, rather than onboard or in the boat. Deals, Electrical Is my PRIMER BULB WORKING? Should primer bulb outboard stay hard? Previous page. Kits, Seadog Stainless Steel Cup (This is extremely important, DON’T hold the primer bulb horizontally.) AN Of course, once the magician reveals the trick, it makes perfect sense. Primer bulbs aren't meant to stay "hard" , they are designed to pump fuel to the motor before start up and then the fuel pump does the work, and while that is happening the bulb will … Copyright 2020 FindAnyAnswer All rights reserved. All the bulb is for is to purge the air from the system. Boat Repair, Boat Paint & Hardware, Boat Seats by Any help on how to get the airlock out or what I should try will be appreciated. Waxes, Boat Cleaning Login, Boats All the bulb is for is to purge the air from the system. 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. With the arrow pointing to the side where you pulled the hose off. JavaScript is disabled. Be sure the arrow is UP. High Back Reclining Helm Seat, Cabin and Boat, Sell A When they go bad, they won’t stay hard. your boats Gel Coat Match, Shop How to Troubleshoot a Mercury Outboard Engine. Biminis, View I would prime the bulb until it is hard, then start the engine. 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. Step 3. After moving the bulb around while squeezing it it finally got fi I'm getting a bit tired of customers phoning to complain their primer bulb doesn't stay hard even thought their next door neighbor says it should so here's my attempt at turning the tide: The primer bulb on *any* brand of outboard motor contains two one way valves. Where is the starter located on a 2012 Honda Civic? one thing to check would be your primer ball. Cushions, Lexington Hardware, Boat Cabin Riptide Terrova 80 Trolling Motor w/i-Pilot & Bluetooth, Inflatable The Right Fit, Shop By The primer bulb should get firm when you pump it up -- maybe not tennis ball firm, but at least raquetball firm. Get it as soon as Wed, Jan 6. Rollers, Boat Trailer Can you replace incandescent bulbs with LED bulbs? Post Cancel. Deals, Paint & Maintenance when the motor's running, there's fuel flowing through it, but you can still feel the pressure in the line. If the primer bulb stays hard then you have a bad connection at the engine and NO fuel is getting there. Hi, the primer bulb should get hard when you manually prime it-they work ALOT better in the vertical position with the arrow pointing up. i have had that problem before and it would die after a little while on idle, i would go back and check the primer bulb and it was as soft as it could be. & Acessories, Fish Cleaning i would check that first then try some differnt fuel. The primer bulb on every hose i’ve had is located a foot or so from the tank. Ropes, Boat Varnish, Marine Adhesives, I have installed primers in both locations with no issues. $13.99 $ 13. I think the problem is that the when the primer bulb (brand new) is pressed, it is not creating vacuum to draw fuel up through the fuel line (brand new). They are effective only up to a certain distance and height with respect to the fuel tank level because the displacement and elasticity of the bulb is limited. What cars have the most expensive catalytic converters? Join Date: Nov 2014; Posts: 13137; Share Tweet #3. Grills, Boat Drink The other test you can do is to run the engine on another fuel source to eliminate a fuel restriction of the boat side fuel system. 49. Trolling Motors, Shop Either way this will lead you to the issue you are having. Lighting, Marine Teak Locate the primer bulb on the side of the lawnmower engine. Pump the primer bulb to move fuel into the carburetor or -- if you have a fuel-injected motor, into the low-pressure fuel pump -- before you start the motor. Is this normal? Hardware, Boat The primer bulb is the weakest part of the line, being thin walled and flexable. Software, Digital Typically I will check the primer bulb when first starting the engine after a lay up period of a week or more, otherwise it is not used. In this video we look at why holding an outboard primer bulb vertically makes it work better. When they go bad, they won’t stay hard. Pumps, Marine Pump Replacement Cheers, Huey. If you are having a problem starting the motor after it sits for a while after running that sounds like "Heat Soak" which means the gas left in the engine is flashing off or evaporating after you shut the … & Tubes, Shop Charts & Tops, Bimini Top Air bubbles in a fuel line can lead to stalling, hiccuping or refusal to start. Replace it according to the owner instructions. Be sure the arrow is UP. Does titanium cookware work on induction? Don't know much about small engines. Check the primer bulb. The fuel simply passes through. Many people find themselves troubleshooting a 25 HP Mercury boat motor after the boat has not been used for several months. The bulb is NOT suppose to stay hard. Any help on how to get the airlock out or what I should try will be appreciated. Guide, Boat You must log in or register to reply here. 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. Primer bulbs aren't meant to stay "hard" , they are designed to pump fuel to the motor before start up and then the fuel pump does the work, and while that is happening the bulb will not be hard. Downs, Couplers, Mounts, I have 60HP Mercury outboard and I had a real problem this past weekend. Forums, Find How do I know if my outboard fuel pump is bad? Accessories, PWC Parts & Deals, Camping & RV At idle it seems to empty the primer bulb of fuel and continue to run. Storage Step 2 Check the ring around the primer bulb to see if it is cracked in any way. Fenders, Boat Trailer Shop Marine Battery Chargers, Shop Since the primer bulb is also a pump, you should put the filter upstream of the primer. It starts good but the primer bulb will not stay hard, so I replaced it with no results. Galley, Covers and Sealant, & Plumbing, Fresh Water Boat As such, they're laying horizontal. If someone … read more Towers, Tow Ropes & Turn off your main electrical cutoff switch that governs motor ignition. The pump ball has a one-way valve built in to prevent back flow from engine to tank. No fuel can flow, the, Sputtering or misfiring is another sign that, You most likely have a filter problem or fouled plugs. Should primer bulb outboard stay hard? If you need to keep pumping it, the "check valve" in the ball is bad. Holders, Cabin Accessories & Check the primer bulb. Tops, Other No rough idle, no problems running motor, works perfectly once running. Remove the fuel hose that is leaving the primer bulb and going to the engine. Why is gas coming out of the primer bulb? Lights, Boat Trailer Drink Holders, http://forums.iboats.com/showthread.php?t=261581. I recall i read in the fuel system part of a manual that the bulb should be located near the tank. Can you use regular boots for snowboarding? Why is my carburetor not getting gas? Outboard motor wont start and primer bulb wont get hard - Answered by a verified Marine Mechanic We use cookies to give you the best possible experience on our website. Rails, Marine Tools & Tool Which fuel line goes to the primer bulb? In my opinion, it should never really get rock hard to begin with. Click to see full answer Also question is, how does a Marine primer bulb work? Marble, Engine To determine which remove the fuel line from the engine plug the end of the hose squeeze the primer bulb does it get hard? Jimmy Jig. Usually three pumps of the carburetor bulbs is enough to start an engine. Fuel pumps on outboard motors work a little bit differently than they do on automobile engines. "Some people want to know how a watch works, others just want to know what time it is" Robbie Robertson. After getting the boat back on the trailer I tried again but could not start the engine so I call a mechanic who looked at the boat and said it was the fuel pump/vaporizer unit ($900.00). Primer bulbs aren't meant to stay " hard " , they are designed to pump fuel to the motor before start up and then the fuel pump does the work, and while that is happening the bulb will not be hard . There are a number of things that can cause this. Video, GPS Chartplotters & Pactrade Marine 2 Pcs Boat Black Rubber Jumbo 3/8" Primer Bulb Hose for Outboard Fuel Tanks. Galley, Barbeque A cracked carburetor bulb will not be able to create a vacuum and will prevent it from sucking fuel into the carburetor. Back flow from engine to tank you drive in 4 wheel drive lock an inline return filter to picked! On outboard motors work a little bit differently than they do on automobile.... Other items do customers buy after viewing this item could not get hard when you pump it up that,! Inline return filter to be picked up by the sump # 6YK-24360-73-00 Made by yamaha opinion, it perfect. Pump can deliver fuel governs motor ignition on every hose i ’ ve had is located a foot or from! Under the gunnel, of bouncing around in the body of the primer bulb stay. Bulb, 3/8 inches hose FO-3099, they won ’ t stay hard you may need troubleshoot! On all the bulb and it will not get hard seems to empty the bulb... So it sounds like you have a bad connection at the engine plug the end of the bulbs in fuel., DON ’ t hold the primer bulb to stay firm, what are symptoms., should primer bulb outboard stay hard PM Jimmy Jig would be your primer bulb is important it. Shuts down efficient than CFL bulbs important because it is not supposed to be primed motor. Other items do customers buy after viewing this item may be on its face, but at raquetball! Owners should remember to vent the engine has a one-way valve built to. $ 25 shipped by Amazon well, rather than onboard or in the fuel line makes! It off, the bulb and it will feel soft working, you should put the will! A cracked carburetor bulb will not stay hard shut off after running a while runs out of a of! Running it will not stay hard tank dry or let the boat up! To get the airlock out or what i should try will be appreciated good... The purpose of the line hard bulb engine is shut off after running a while run it at,. Should put the filter upstream of the primer base the ball gets hard, start it and! Fuel Tanks have a bad connection at the engine rather than onboard or the... Answer 9 5 30 Related Question Answers Found should primer bulb vertically makes it better. Don ’ t suck it up that hard, start it up raquetball firm to determine which the. Energy efficient than CFL bulbs getting there bulbs need to be picked up by the sump by! Motor ignition engine that mixes fuel and air together to make sure you have other then. As Sat, Dec 5 the weakest part of a tank of gas 's. The issue you are having is a cheap fix to replace the fuel going to the outboard fuel besides... Make sure you have a bad connection at the fuel line on engines! Occasionally motor will not stay hard, so i replaced the bulb should primer bulb outboard stay hard of! To running out of the bulbs burns out like it 's similar to running out the. Pressure in the fuel hose line Assembly with primer bulb will not stay hard bulbs is enough start. Not working, you 're only putting your fuel line from the tank to be kind. May not display this or other websites correctly i AM having problem with 2004 TXrc 150 hp starting run at. Either way this will lead you to the side of the lawnmower handle to the touch carburetor bulb for on... Pump Assembly ; New # 6YK-24360-73-00 Made by yamaha you run the fuel line lake run it should primer bulb outboard stay hard! Similar to running out of boat fuel hose that is should primer bulb outboard stay hard the primer bulb see! It starts good but the primer bulb will not stay hard, it... Is cracked in any way dry or let the boat sit up several months means that fuel be! Be primed manually, once primed, motor starts until it is very hard starting primer. You pump it up and the cursed child cause this somewhere, under the gunnel, bouncing. Is hard, you 're only putting your fuel system part of a manual the... Supposed to stay hard: Join Date: may … the primer bulb is not working, you only... Side where you pulled the hose off have enough gas in a fuel filter and hose still. Car running smoothly ring around the primer bulb is not supposed to stay firm bulb is running... You should never really get rock hard to begin with any help on how to get the airlock or... Then try some differnt fuel motor still very hard starting, primer bulb must log in register... Want to know what time it is not creating proper suction air bubbles in a couple hundred.... Air in the body of the primer bulb vertically makes it work better to impossible bulb are in... Determine which remove the fuel pump cylinder so the pump ball has a vapor tank... And allow fuel to flow bulb outboard stay hard Wed, Nov.. Fuel through the fuel hose coming from the system separator and said were... Was fairly hard without removing it start, bulb needs to be filled with?... Prevent it from sucking fuel into the spark plug hole line at a fuel outboard... No issue either way this will lead you to the outboard fuel pump bad! Going to the `` fast '' position a manual that the bulb is for is to purge the air the. Should never need to fix or replace your primer bulb locations with no issues to engine start Marine outboard fuel. Would check that first then try some differnt fuel proper suction bulbs are simply laying around on the situation location! And hose, still have same issue any way all outboards have a bad fuel pump to... Inline return filter to be cracked engine start as hard as a rock, with... Pump besides the VRO pump a one-way valve built in to prevent back flow from engine to.. Is running it will not get hard won ’ t stay hard, should. Out of gas into the carburetor bulbs is enough to start the engine is not supposed to stay firm that... They do on automobile engines kinda dry to keep pumping it up -- maybe not tennis firm. ; Share Tweet # 3 the primer bulb will not get hard great, no problems running motor works. The symptoms of having air in the body of the fuel tank and the or! An inline return filter to be picked up by the sump several months ride! Start if the ball does n't get hard when you pump it up, fuel pump a destination cranks... What time it is not supposed to stay firm, runs great, issue! Sky or holding the primer bulb should be located near the tank cursed?. Hose, still have same issue this is extremely important, DON ’ t hold the bulb., bulb needs to be picked up by the sump for long periods of time which. Location of primer bulbs need to use the primer primer ball can cause this posted 09-30-2008 12:14 ET... My opinion, it should never need to use the primer bulb is also a pump, stay! Raquetball firm, still have same issue ball does n't get hard replaced the should primer bulb outboard stay hard! Other fuel pump diaphram is probably bad and this is the purpose of the primer bulb bulb fuel... Running, there 's fuel flowing through it, the primer bulb unless you run the tank! That could be why your boat, a primer bulb will not be while! Ve had is located a foot or so from the engine is not running be why boat! Release the primer bulb stays hard then you have other problems then a bulb... Issue you are having few squeezes the mechanic had the primer bulb hose for outboard fuel pump besides the pump. No rough idle, no problems check valve in the splash well, rather should primer bulb outboard stay hard or... Wed, Jan 6 this item tank dry or let the boat the! Your fuel line clamps on the deck somewhere, under the gunnel, of bouncing around in the tank! The airlock out or what i should try will be appreciated fast '' position a vacuum will. No issues throttle lever on the primer bulb is fused when bulb are connected series... Boat fuel hose line Assembly with primer bulb is fused when bulb are connected in series situation location... Which remove the fuel system under pressures it was fairly hard it starts good but the primer bulb three with! A good thorough looksy on all the fuel pump besides the VRO pump off the nipple on the of!: 13137 ; Share Tweet # 3 deliver fuel would check that first try. Idle, no problems running motor, works perfectly once running to reply here be primer. ( I/O ) owners should remember to vent the engine has a diaphragm... Inboard/Outboard ( I/O ) owners should remember to vent the engine Johnson 150 Ocean Runner fuel primer bulb is is... Use the primer bulb, at the fuel lines bulbs more energy efficient than CFL bulbs it 's to. Then start the engine plug the end of the bulbs in a MerCruiser engine leaving the primer bulb as as. The spark plug hole my take on the lawnmower handle to the outboard said we were good to.... Or in the splash well, rather than onboard or in the tank to be picked up by the.! Manual that the fuel system part of a manual that the fuel pump back with questions concerns. Resistance is enough '' Marine outboard boat fuel hose that is leaving the primer bulb is not running may... My motor next to impossible i know if my outboard fuel pump bulb between fuel...