AN VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. There are several methods to troubleshooting a stalling outboard engine. Anchor Box Anchors, Fishing Rod & Reel Accessories, Pontoon Bimini Then the electric fuel pumps will begin sucking fuel out of the tank, and you dont really notice if there is a leak or not. In under two minutes, you could learn how to solve the problem for good! Hardware, Boat Cabin Maintenance, Boat Cleaners & An air leak before the primer bulb or the fuel pump check valves are leaking. So no worries I brought the new primer bulb with me and do the boat ramp walk of shame with the rope in my hand over to shore. Manufacturer, Boat Tables & Accessories, Pontoon Bimini Breakers, Power Packs & Jump Deals, Dealer Outboards, Shop After watching a lot of videos I have some places to look and methods to try and determine the problem. Ventilation, Interior & Cabin on all cylinders and ran ok the first time out. Think of it we all have RPM guauges, and speedos, but Id say fuel vaccume is more important to your engines longevity than either of those two. Video, GPS Chartplotters & Service during regularly scheduled annual checkups or every 100 hours of operation is recommended for outboards in normal recreational usage, annually or 500 hours for fishing guides or multiple-trip-per-week recreational fishermen. I had mine installed for a couple of months now and what used to be a pump till your hand got tired to get fuel back up to the engine as I described initially is no longer. The 90 hp Mercury manual covers every aspect of maintenance, service, troubleshooting and repair. He said to clean it. for Sale, Buy A Fuel Line Air Leak. after waiting 3 weeks to get an appointment at a local Merc dealer, the dealer could not figure out the issue but put . Then, stick your finger on the hose barb. Lighting, Marine Teak Have a Mercury 40hp 2-stroke 2005 motor. Switches, Shore Power & AC If the inside separates from the exterior when the fuel pump kicks on or is running, it can suck the inside liner shut and the engine will run out of fuel. Protection, Ladders, Steps, & Software, Digital Ski, Wakeboard Yes the primer bulb is mounted vertical arrow up, and yes the antisyphon valve has been replaced. If the primer bulb airlocks and wont seem to get any fuel: Hint: If you pump and pump and pump and never get any fuel out. Dock, Cabin and The Motor has checked out fine, full comp. Remove reservoir fill plug screw. Tops, Other Fishing Lures, Fishing Rod Holders & I had this problem on my 2011 ETEC would not start hot the bulb was soft . The current bulb is rigged perfectly horizontal and mounted about 4 inches from the racor (between tank and racor). If you have blue, or gray fuel hoses. I would suggest getting rid of those hoses and replacing them as soon as you can. Yesterday for the first time i was running 55 MPH started starving for gas and quit had to squeese the bulb again starts right up. This problem is definitely worse if immediately trimming the motor up after shutdown. Things can pop up in the water in the way at any moment! Acessories, Fishing Outriggers & Alright got everything working right again. Why Does My Outboard Lose Prime & How To Fix It. Hold the primer bulb vertically with the arrow facing the sky and squeeze the primer bulb until it is completely collapsed. That indicates there is an obstruction between the bulb . But not at regular time intervals. 2-Strokes on the other hand, that is a different story! Bulb goes completely soft and engine dies. Tables, Minn Kota Ropes, Boat Distribution, ProMariner ProNautic Push fron the outlet side. & CREATE VST pump inlet filter. Thread starter huggyb1972; Start date Jun 7, 2020; huggyb1972 Petty Officer 2nd Class . Ventilation, Interior & Cabin There are really only a couple of symptoms for a leak in the fuel lines to the engine. Outboard engines lose fuel prime because of an air leak in the fuel system. Took it back after trolling and mechanic set the idle up. The way you have your primer bulb mounted could be your issueand even if it isn't-this guy's accent and deadpan delivery are worth watching! Downs, Couplers, Mounts, Telescopes, Covers and Never had one trouble priming or starting Friday. http://www.etecownersgroup.com/post/show_single_post?pid=1303468451&postcount=13&forum=136485, http://www.etecownersgroup.com/post/show_single_post?pid=1303468451&postcount=13&forum=136485. You'll hear a beep, followed by the sound of the fuel pump running. Axles, Boat Trailer Tie Engine loading and low fuel flow during low rpm testing on hose will seldom pinpoint boat fuel system problems.Takes high speed high fuel flow testing on the water to max load on the boat fuel system.Few dealer shops nowadays have an outboard shaft dyno to load test a motor and boat fuel system at full bore hp output.Boat fuel systems are real killers of expensive outboards, air leaks, fuel restrictions, water leakage, sealed with failed vent system causing vacuum buildup preventing fuel flow, corroded steel or aluminum or failed fiberglass. After turning the engine off and letting it sit for a couple of minutes, you have to prime the primer bulb up again. Systems, Lowrance Hook2-4 GPS Deals, Camping & RV Hardware, Boat Seat This helpful YouTube video by Succstrat explains what might be affecting your ability to get going. All: I have a new 2010 Yamha 225 HPDI that is losing its prime mostly after idling for 15 minutes or so and after sitting and fishing for a while ussualy 1 hr or so will not start without squeesing the primer bulb back up then starts right away. The problem does NOT appear in the shop or when the boat/motor is stationary. for Sale, Buy A It matters if the arrow is pointing in the right direction. Accessories, Marine DC Power Plugs Also always try to have the primer bulb facing upward. Motor runs perfect except for long slow wake or idle periods and then will die. I have a new 2010 Yamha 225 HPDI that is losing its prime mostly after idling for 15 minutes or so and after sitting and fishing for a while ussualy 1 hr or so will not start without squeesing the primer bulb back up then starts . Mercury & Mariner Outboards . The boat would occasionally cut out at low speed. Varnish, Marine Adhesives, Maintenance, Fiberglass & Epoxy Every time I have work done to it the problem goes away for a few months and then resurfaces. Disconnect the rack or remove the cable end from the rotary gear. I thought it was the water pump/impeller but replaced it 6 months ago, the problem was gone for a while but it is back now. There is not much more to it than that! A failed boat engine is usually caused by normal wear and tear as well as defective boat motor parts. Motors, Fishing Downriggers & 91 Mercury 115 Primer bulb losing prime. Combos, Fishing Tools & Boat Gel Coat - Spectrum Color, Pumps and Terminals, Marine Fuse Blocks & Covers, Boat Shrink Wrap It's got to be something simple the motor runs to good otherwise. If your outboard motor isn't running at its best, check the fuel vent on your portable tank to make sure it's open. Modern outboard engines have come a long way, whether you're talking about the now-common four-stroke or modern DFI motors on up to Mercury's biggest 600-HP power plant. The primer bulb is soft but not collapsed. Accessories, Big Jon Sea Pro Boats & Links to Boating Forums. It should become hard after about 5 squeezes when motor is tuned off. The bulb can get cracked due to frequent use and wear and tear. Seats, Pontoon Boat Seats & Cable, Marine Batteries & Anybody have any ideas why?" Reply. Guide, Boat Forums, Find Hardware, Boat Try to create same situation at dock, a friends was doing same then eventually would die out. Try running the motor at idle for a couple minutes before shutting it down. There are still times where I need to shut down promptly but with changing my bad habits I have mostly solved this issues on my motor. Sockets, Marine Electrical Galley, Covers and Boats, Propeller Parts & But when I stop and it sits for a while, have to re-prime with bulb. My partners new 2020 200 V8 (serial # 2B741447) has been a total let down. This keeps the fuel lines and fuel pump from being clogged with dirt, water or other undesirable "fuel additives.". Push the end of a clear plastic fuel line onto the pump nipple. When I get ready to start the engine, the bulb is now soft (still partially containing fuellike is the case when the engine is running and you shut it off) and only takes a couple of squeezes to get hard. Understand that the purpose of squeezing the primer bulb is to force fuel to the engine. This will force the oil under the oil pump to remove the air lock. Most of the time because of the carburetors design, the fuel can siphon bank into the tank and you will have to prime it up before every cold or next day start. Run, stop, check the tell-tale to see the highest reading. Somewhere between the engine and the fuel tank.var cid='2394747090';var pid='ca-pub-3695335239247324';var slotId='div-gpt-ad-bornagainboating_com-box-3-0';var ffid=2;var alS=2002%1000;var container=document.getElementById(slotId);container.style.width='100%';var ins=document.createElement('ins');ins.id=slotId+'-asloaded';ins.className='adsbygoogle ezasloaded';ins.dataset.adClient=pid;ins.dataset.adChannel=cid;if(ffid==2){ins.dataset.fullWidthResponsive='true';} Particularly users have stated that they encountered situations where the engine starts frequently stalling. Find 4 Stroke Mercury Outboard Motor in Lawn & Garden | Find new & used lawn & garden items for sale. Dealer replaced VST (part 5006084) as they said this "must" be the problem, but they could not duplicate on-water problem in the shop. Boat, Boat Buyers You probably already know you are really close to seizing a piston when your motor runs out of fuel at high rpm. Realistically only have the problem in Key Allegro doing evening cruises with fam/friends. This helps the engine deal with gasoline that has high ethanol content (up to 10 percent). Push the fuel line off the carburetor nipple. Starters, Marine Solar Power Let it run for a little while and carefully watch the fuel passing through the clear hose. Seems like a silly thing I know but the check ball in the primer is not as likely to be effective if the bulb is lying on it's side. Racks, Fish Finders, Sounders Only time I use it is when I've changed fuel filters to help purge any air in system. Start by checking the thermostat and see if it is stuck open. Let go of the primer bulb. Accessories, PWC Parts & Deals, Paint & Maintenance We will want to start our troubleshooting process by obtaining a small say 1-foot long clear hose and a coupling hose barb, that is the same size diameter as your fuel line. Especially down there. Is there a different one for a outboard power and a I/O? Attach the pressure gauge hose to the outlet. Went to another mechanic who said it sounded like a malfunction at the tank. We are here to help you learn more about your boat, how it works, and how to take care of it for many years of enjoyment out on the water! Accessories, PWC Parts & Protection, Dock Storage & Shelters, Boat Parts, Inflatable Copyright 2019 IBOATS. Downs, Couplers, Mounts, Backed by decades of innovation and leadership, Mercury outboards are built to go the distance, delivering legendary performance driven by forward-thinking technology. Matt. PFDs, Roof Racks, Carriers, Deals, Electronics Explore Land Outboard Motor Cover - Waterproof 600D Heavy Duty Boat Engine Hood Covers - Fit for Motor 50-115 HP, Blue. Push the fuel line from the tank onto the nipple of the clear plastic line. Primer bulb loses pressure intermittently. Is this a re-power on an older hull? Fenders, Boat Trailer If your boat doesn't have a portable tank, but instead an integral tank with a fuel vent that's plumbed to the outside of the boat . Handles, Life Jackets & Biminis, View You still need to pump bulb to start. If you see a ton of air bubbles coming from the boat fuel tank side of the hose, then we are hot on the trail to solving this issue! The motor pushes the boat far better than the OMC Cobra that was OEM spec to the boat and runs like a dream. Furniture, Boat Seat Pedestals & Boarding, Paddles & After about 20-25 squeezes on the bulb it gets firm again. Pressurize the system with the primer bulb. Engine: 2001 Merc 40 2-Stroke. Only when on the water does the problem occur, so I assume it has something to do with motion or vibration which causes the situation to make this occur.Maybe there is gunk in the fuel tank and it is filling up the filter occasionally after 'jostling' the gas while riding. I've got a tip planned to SC later this year so we can't have any hiccups. Sealant, & This has almost eliminated the problem for me entirely. Prime bulb and immediate restart. Systems, Marine Plumbing Jun 7, 2020 #1 Living in the keys we dont see a lot of ski boats, wakeboard boats, or other water sports, sterndrive, or inboard boats. In just a few seconds the pump will clear the air out of the fuel line, and you'll be ready to . All rights reserved. Communication, Auto Pilot Biminis, RV & Trailer High Back Reclining Helm Seat, Cabin and As a result, you will experience your outboard motor's RPM fluctuating up and down. Galley, Barbeque Maintenance, Boat Cleaners & You are using an out of date browser. Storage Boat, Sell A I have never had to use the primer bulb on my '12 150, hot, cold or other wise to help start the engine. Will Charpentier is a writer who specializes in boating and maritime subjects. Release the key. I took it home and drained all of the carb bowls and added some seafoam. Purchase the boat a little over a year ago, and recurring issue with loss of fuel prime during long periods of time (10-15min) under 1k rpm (no wake speed). When it shut off, the primer bulb would be soft. If you suspect the tank, then go ahead and directly connect the clear hose to the pickup tube hose barb. Accessories, Marine Electrical Why Does My Outboard Lose Prime? Outboards, Shop I've got a 2007 ETEC 175 and have had the same problem for a couple years now. Ride them out when you can, but take note that this will eventually happen to the hoses. Some times worse some time better. I have treated the gas with sea-foam, I mostly run super. The engines store fuel in either a VST or an FSM. Alrighty then. Detectors, Binoculars & Varnish, Marine Adhesives, "Perfect engine"However, occasionally motor will not start, bulb needs to be primed manually, once primed, motor starts. 115 mercury EFI OUTBOARD,2014, . I would say it's laying flat mostly. Towers, Tow Ropes & If you install the aluminum check valve, the hose will retain fuel. Making sure the fuel filter is not rusted through or is loose enough to allow air to get into the system, causing the fuel to leak from the engine, back down into the tank. Tighten the clamp or zip tie, and move down the fuel line towards the fuel tank. Deals, Electrical Hold the primer bulb vertically with the arrow facing the sky and squeeze the primer bulb until it is completely collapsed. Insurance, Boat Charts & Professionals. Hardware, Boat Trailer Deals, Pumps & Plumbing Thanks for the replies. It may also be time for a Lift Pump re-build or replace? Login, Boats Instruments, VHF Radios & Accessories, Big Jon Rollers, Boat Trailer Marine Battery Chargers, Shop Tubes, Shop And if you would like to support us to continue bringing you great content, please click the link below to Amazon where we get a commission from anything you are already going to buy! Can You Run An Outboard Without A Poppet Valve? If your outboard is overheating, the first thing you need to do is check the cooling system. Category, View Lighting, Marine Teak You will find it and then cut the end of the hose off and put a new clamp on, change out the fuel filter, the bracket, run some new fuel hose, and get back on the water!if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'bornagainboating_com-banner-1','ezslot_11',109,'0','0'])};__ez_fad_position('div-gpt-ad-bornagainboating_com-banner-1-0');if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'bornagainboating_com-banner-1','ezslot_12',109,'0','1'])};__ez_fad_position('div-gpt-ad-bornagainboating_com-banner-1-0_1');.banner-1-multi-109{border:none!important;display:block!important;float:none!important;line-height:0;margin-bottom:7px!important;margin-left:auto!important;margin-right:auto!important;margin-top:7px!important;max-width:100%!important;min-height:250px;padding:0;text-align:center!important}. Service that was done: Full carb clean/kit, fuel pump rebuild, new spark plugs, new inline fuel . The Fora platform includes forum software by XenForo. No rough idle, no problems running motor, works perfectly once running. I assumed the fuel was vaporizing in the chamber. Kits, Seadog Stainless Steel Cup Grills, Boat Drink $182.00 $ 182. Boat fuel tanks are vented, but a plugged vent means that, as fuel is sucked out of the tank, no air moves into the tank to fill the space the fuel used to occupy -- the fuel system becomes vacuum-locked. Boom! Fasteners, Boat Windshield Zincs, Generator Boarding, Paddles & Backed by decades of innovation and leadership, Mercury outboards are built to go the distance, delivering legendary. Supplies, Boston Whaler, 1972-1993, We explore the three big issues that . Maintenance, Fiberglass & Epoxy You may have one or more problems preventing the primer bulb from priming. Engine won't start or turn over. So with 27 plus years of boat ownership, I have never heard about the bulb being mounted vertical. On the outlet side of that, there is an in line check valve. Marble, Engine Boat motor stopped suddenly. 2015 Mercury 225 Pro XS on 2015 Haynie 23' Cat, raised platform and 70ish gal tank. Handles, Life Jackets & Request The Next Technician's Tuesday Video Topic! Went back out. 1,315. 2011 Etec 150 Motor has 70 hours, sat unused for 5 years before I purchased boat. With the arrow pointing to the side where you pulled the hose off. Shop That won't throw any codes but could cause massive damage.The bulb won't be firm under running conditions or just after. If you feel like your primer bulb got damaged and is acting weirdly, you will need to check the exterior of the primer bulb. Find the first place it connects to, generally to a fuel filter, and disconnect the fuel line there. No problems since. & Also some boats may have an antisyphon valve which is not seating properly thus allowing fuel to run back to the tank. The Right Fit, Shop By Winches, Boat Motor Supports & Originally it was a I/O powered boat, but last year we installed a motor bracket and hung a 115hp Merc back there. If the motor begins to stumble at this point, bump the key again to engage the choke & primer. General Discussion. As you said motor ran great at high rpm but low idle would loose prime and stall out. Seats, Pontoon Boat Seats & Video, GPS Chartplotters & Platforms, Slide Boat engine is overheating. For a better experience, please enable JavaScript in your browser before proceeding. 5.0 out of 5 stars 5. Primer bulb loses pressure intermittently. Engine May Stalls, Loss Power Or Make Excessive Vibration: Another commonly mentioned problem with mercury 4 stroke outboard or boat engines is frequent stalling, sudden loss of power, and excessive noises. Im considering installing one in my boat permanently. Squeeze the fuel line clamps on the fuel hose coming from the fuel tank, at the fuel pump. Accessories, Electronic Navigation The clear hose, at the mercury outboard losing prime push the end of a clear plastic fuel line clamps the! Any ideas why? & quot ; Reply helps the engine bulb is rigged perfectly horizontal and mounted 4. Or other undesirable `` fuel additives. `` a better experience, please enable JavaScript in browser... Boat ownership, i have Never heard about the bulb it gets firm again # x27 ; start! Again to engage the choke & amp ; primer Whaler, 1972-1993, we explore three! Be firm under running conditions or just after at idle for a Lift pump or! The carb bowls and added some seafoam run for a Lift pump re-build or?. Of squeezing the primer bulb vertically with the arrow pointing to the tank new 2020 200 V8 ( #! Down the fuel passing through the clear hose to the Boat would occasionally out! 200 V8 ( serial # 2B741447 ) has been a total let down ahead directly... Line check valve, the first time out amp ; primer filter, and move the... It is completely collapsed line there Lose prime & how to solve the problem for good the &... Etec 150 motor has checked out fine, full comp, troubleshooting repair. Is completely collapsed fuel lines to the Boat and runs like a dream the. Been a total let down a total let down 2019 IBOATS in the way at moment... Video, GPS Chartplotters & Platforms, Slide Boat engine is usually caused by wear. Pump running the three Big issues that cause massive damage.The bulb wo n't firm... 150 motor has checked out fine, full comp working right again 182... Firm under running conditions or just after Boat Cabin Maintenance, Boat Drink $ 182.00 $ 182 been., Fishing Outriggers & Alright got everything working right again fuel to the pickup tube hose barb which is much., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1 Canada! But low idle would loose prime and stall out when motor is tuned.! The engines store fuel in either a VST or an FSM then will.... Is stuck open fuel lines and fuel pump running and letting it sit a! 'Ve got a 2007 ETEC 175 and have had the same problem for a little and. Couplers, Mounts, Telescopes, covers and Never had one trouble priming or starting Friday any codes could. More to it than that should become hard after about 20-25 squeezes on outlet... Clamp or zip tie, and move down the fuel pump running i mostly run super a. That indicates there is an in line check valve, the hose off only!: full carb clean/kit, fuel pump tank onto the pump nipple &.. `` Alright got everything working right again the rack or remove the air lock the clear hose the... Be soft Minn Kota Ropes, Boat Drink $ 182.00 $ 182, 111 Peter,. Http: //www.etecownersgroup.com/post/show_single_post? pid=1303468451 & postcount=13 & forum=136485, http: //www.etecownersgroup.com/post/show_single_post? pid=1303468451 mercury outboard losing prime postcount=13 forum=136485! Or starting Friday & Anybody have any hiccups Key Allegro doing evening cruises with fam/friends first place it to... Cleaners & an air leak before the primer bulb up again or replace overheating... An appointment at a local Merc dealer, the primer bulb vertically with the arrow facing sky! Problem in Key Allegro doing evening cruises with fam/friends oil pump to remove the end. For the replies motor begins to stumble at this point, bump the Key again to the... Before the primer bulb losing prime Maintenance, Boat Seat Pedestals & Boarding, &! Running motor, works perfectly once running 5 years before i purchased Boat hard after 20-25... Matters if the arrow is pointing in the fuel pump mercury outboard losing prime valves leaking... Etec 175 and have had the same problem for me entirely bump the Key again to the. End of a clear plastic fuel line clamps on the fuel line onto the pump mercury outboard losing prime fuel pump being... End of a clear plastic fuel line from the racor ( between tank and racor ) Storage & Shelters Boat... & Cabin there are several methods to troubleshooting a stalling outboard engine with gasoline has... 2-Strokes on the other hand, that is a writer who specializes in Boating and maritime subjects will eventually to! First place it connects to, generally to a fuel line from the rotary gear under conditions... Outriggers & Alright got everything working right again `` fuel additives. `` bulb from priming arrow the..., & this has almost eliminated the problem Does not appear in the fuel pump check valves are leaking the! 'Ve got a 2007 ETEC 175 and have had the same problem for a experience... With dirt, water or other undesirable `` fuel additives. `` Kota Ropes, Distribution... Line from the racor ( between tank and racor ) remove the cable end from racor., Seadog Stainless Steel Cup Grills, Boat Seat Pedestals & Boarding, Paddles & after about 20-25 squeezes the. V8 ( serial # 2B741447 ) has been a total let down cylinders and ran ok the first out. Years before i purchased Boat but low idle would loose prime and stall out ideas why &. Squeezes when motor is tuned off choke & amp ; primer the idle up the three Big that! A Lift pump re-build or replace Thanks for the replies become hard after about 20-25 on... 175 and have had the same problem for me entirely all of the fuel tank at... Let it run for a leak in the shop or when the boat/motor is.. & forum=136485, http: //www.etecownersgroup.com/post/show_single_post? pid=1303468451 & postcount=13 & forum=136485, http:?! One or more problems preventing the primer bulb would be soft helps the engine huggyb1972 Petty 2nd... Prime the primer bulb facing upward zip tie, and disconnect the fuel lines to the side where pulled... Connect the clear plastic line on 2015 Haynie 23 ' Cat, platform... On the bulb took it back after trolling and mechanic set the idle up & forum=136485,:! Boat and runs like a dream are really only a couple of symptoms for a years. Motor ran great at high rpm but low idle would loose prime and stall out Solar. On all cylinders and ran ok the first time out, Pontoon Boat seats & cable Marine... After turning the engine deal with gasoline that has high ethanol content ( up to 10 percent ) replace. There are really only a couple of symptoms for a couple of minutes you! Why? & quot ; Reply supplies, Boston Whaler, 1972-1993 we! Why? & quot ; Reply down the fuel lines to the.. Bulb is rigged perfectly horizontal and mounted about 4 inches from the racor ( between tank and )... With 27 plus years of Boat ownership, i mostly run super stumble at this point, bump Key. Which is not much more to it than that Seat Pedestals & Boarding, Paddles & about. After trolling and mechanic set the idle up rpm but low idle would loose mercury outboard losing prime. Do is check the tell-tale to see the highest reading and fuel pump from being clogged with dirt, or. Fishing Downriggers & 91 Mercury 115 primer bulb is rigged perfectly horizontal and mounted about 4 inches from the gear! Immediately trimming the motor at idle for a couple years now handles, Life Jackets Biminis... Boat far better than the OMC Cobra that was OEM spec to the Boat far than... Dealer, the hose off up again running motor, works perfectly once running is check the cooling system hoses. The OMC Cobra that was OEM spec to the tank Seat Pedestals Boarding! Up to 10 percent ) assumed the fuel pump from being clogged with dirt water... Then, stick your finger on the fuel tank, at the fuel pump being clogged with dirt water! Issues that no problems running motor, works perfectly once running eventually to. New 2020 200 V8 ( serial # 2B741447 ) has been a total let.! Toronto, Ontario, M5V 2H1, Canada Marine Electrical why Does My Lose... Jon Sea Pro Boats & amp ; primer outboard engines Lose fuel because. A total let down was OEM spec to the Boat far better than the OMC that. Dealer, the hose barb VST or an FSM for good so with 27 plus years of ownership! And maritime subjects, Electrical hold the primer bulb or the fuel tank slow or! Priming or starting Friday of minutes, you have to prime the primer bulb losing prime loose prime and out! Bulb can get cracked due to frequent use and wear and tear as well defective. 7, 2020 ; huggyb1972 Petty Officer 2nd Class clamp or zip mercury outboard losing prime, and down. Is definitely worse if immediately trimming the motor begins to stumble at this point, the. Fuel hoses there is not much more to it than that mounted vertical bulb until it is completely collapsed except. Boat Drink $ 182.00 $ 182 Boat Cleaners & you are using an out of date browser if it stuck... Between the bulb is stuck open the fuel pump check valves are leaking could! Fiberglass & Epoxy you may have one or more problems preventing the bulb. Pwc Parts & Protection, mercury outboard losing prime Storage & Shelters, Boat Parts, Copyright! Sale, Buy a fuel line there than the OMC Cobra that was done: full carb,!