A stalled or losing power boat motor is problematic . Disconnect the negative cable of the battery before performing any maintenance work on your outboard motor's fuel system to prevent fires. Diagnosing High-RPM Power Loss. You Don't want to see it go above 4". I have seen bad check valves (though you replaced it can fall). Maintenance, Boat Cleaners & If You Accidentally Go Too Far And Put Boat In Reverse While Can I Run My Outboard Without A Poppet Valve? Bilge Pumps, Shop Starters, Marine Solar Power You may have one or more problems preventing the primer bulb from priming. Reinstall the clear hose there and retest for more bubbles.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'bornagainboating_com-box-4','ezslot_9',108,'0','0'])};__ez_fad_position('div-gpt-ad-bornagainboating_com-box-4-0');if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'bornagainboating_com-box-4','ezslot_10',108,'0','1'])};__ez_fad_position('div-gpt-ad-bornagainboating_com-box-4-0_1');.box-4-multi-108{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}. Transom 91 Mercury 115 Primer bulb losing prime. The boat would occasionally cut out at low speed. And move down the line with the clear hose, until you hit the point where the bubbles stop. Furniture, Boat Seat Pedestals & So with 27 plus years of boat ownership, I have never heard about the bulb being mounted vertical. After about 20-25 squeezes on the bulb it gets firm again. Pumps, Marine Pump Replacement Varnish, Marine Adhesives, Bulb goes completely soft and engine dies. Platforms, Slide Charts & AN Fasteners, Boat Windshield I would suggest getting rid of those hoses and replacing them as soon as you can. Cushions, Lexington link to Can I Run My Outboard Without A Poppet Valve? It should become hard after about 5 squeezes when motor is tuned off. That is unless it is a pretty bad leak! A few days ago the motor started shutting off from lack of fuel. Supplies, Boston Whaler, 1972-1993, And our first reaction is to pull out of gear. Bullet Skimmer, Paint and Parts, Boat Tubing & Is the primer bulb mounted with vertical orientation and arrow up? Lighting, Marine Teak Engine in full tilt position. Motor will start and then stalls out so it looses its prime. Who would have known? Instruments, VHF Radios & VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Check out our channel and get subscribed! Accessories, Boat Boat engine is overheating. Alright got everything working right again. It's not hard to do but easy (at least for me) to get confused.There was case a while back where the guy was going nuts with a similar problem, and finally found bits of paper towel floating in his fuel tank. I have a 2013 175 pro XS Model # 1175P73EY Serial # 2B008856. First time using boat after dealer changed VST, started fine on first fire (normal), moved locations without firing problem. Every time I have work done to it the problem goes away for a few months and then resurfaces. Years ago Merc/Quicksilver OEM bulbs were the only ones that were agreed to work all the time. Then, stick your finger on the hose barb. Breakers, Power Packs & Jump Thread starter huggyb1972; Start date Jun 7, 2020; huggyb1972 Petty Officer 2nd Class . Covers, Boat Seat Screws, Boat Handles, Pulls, On the outlet side of that, there is an in line check valve. Request The Next Technician's Tuesday Video Topic! Buy good quality fuel only. Blocks, Marine Primer bulb loses pressure intermittently. Come join the discussion about fishing guides, bait, safety, gear, tackle, tips, reviews, accessories, classifieds, and more! Googled it and seems to be some merit to it, so learned something new to try today. Deals, Camping & RV Mercury 4 stroke giving me issues. Fasteners, Boat Windshield Wondering if the impeller could wear that quick. Run, stop, check the tell-tale to see the highest reading. If not, then you know it's an issue with the main tank and/or fuel line. Sealant, & I have a 2005 1720CC with a 90hp 2 stroke Yamaha. Seats, Offshore Boat The clear plastic line lets you see if bubbles form in the fuel on hot days -- the cause of vapor lock. Something that a lot of people miss is improperly pumping the primer bulb! If the pressure releases, it's a clear sign that the inlet is allowing pressure to escape in either direction and the valves aren't in proper working condition. With the arrow pointing to the side where you pulled the hose off. Boat Repair, Boat Paint & (856) 785 9455. Ropes, Boat I had a similar issue and it ended up being dirty injectors. 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. Boarding, Paddles & When it comes to having engine trouble, you may need to test anything and everything! Try to create same situation at dock, a friends was doing same then eventually would die out. Parts, Sacrificial Anodes & Clear plastic fuel lines meeting the U.S. Coast Guard A1 requirement for fuel hoses are available at marine suppliers and are equipped with quick-connect connectors. Combos, Fishing Tools & Fuel Line Air Leak. I have a late 80's model 50 horse mercury outboard, prime the fuel line and it starts up and runs great, . I it absolutely normal for the bulb not to be hard during or after running. Nobody makes a more reliable, powerful, and efficient lineup of outboard motors than Mercury: Verado, Pro XS, FourStroke, SeaPro, and Jet. The motor will not start and the only way to start the motor is to manually pump fuel through the bulb. & Dock, Anchor Chains & Handles, Life Jackets & 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. Just Click Here! Usually it's the fuel line connection at the tank, the fuel/water separator, or any fittings before the primer bulb. Accessories, Electronic Navigation Mercury & Mariner Outboards . Fishing Lures, Fishing Rod Holders & The float if bad in vst can be replaced. Things can pop up in the water in the way at any moment! Shop Manufacturer, Boat Tables & & Rings, Prop Nut Kits & It inadvertently cuts out at any speed any time. Squeeze the fuel line clamps on the fuel hose coming from the fuel tank, at the fuel pump. Riptide Terrova 80 Trolling Motor w/i-Pilot & Bluetooth, Inflatable Let go of the primer bulb. Re-set to "0", and go. Harware, Marine Nuts, Bolts, & So what do you do, you ask? Software, Digital Pumps, Livewell Aerator Pumps But blockages don't cure themselves. Rails, Marine Tools & Tool Release your thumb. Boat Gel Coat - Spectrum Color, Pumps and A failed boat engine is usually caused by normal wear and tear as well as defective boat motor parts. Motors, Fishing Downriggers & make sure the fuel bulb is not sitting in a horizontal position if possible make it vertical so that the check valve falls down inside of it. i chased the problem for three years on my suzuki and that seemed to help me quite a bit i still have it occasionally, but I've resulted to "heat soak" from the ethanol fuel and being hot and evaporating faster. not much you can do if that's the problem other than putting an inline electric fuel pump is it worse in the hotter months of summer?? Marine Battery Chargers, Shop The problem is intermittent. Seats, Offshore Boat Fenders, Boat Trailer & Sonar, Trolling Distribution, ProMariner ProNautic Hold the primer bulb vertically with the arrow facing the sky and squeeze the primer bulb until it is completely collapsed. your boats Gel Coat Match, Shop ++ to PropNut! But if you let the engine sit overnight, you have to prime it in the morning. Boat Repair, Boat Paint & Holders, Cabin Accessories & Seats, Pontoon Boat Seats & Locks, Boat Deck Accessories, Boat Lift Canopy 2. Pumps, Livewell Aerator Pumps The coil assemblies of Mercury outboards (which are often referred to as "the stator") are somewhat infamous for being the source of problems. $12.00, I was experiencing this with my 2016 150. Accidentally Put Boat In Reverse While Driving? Our goal is to make content to help people resolve their boating issues and get back out on the water! Thread starter bassmaster1234; Start date Mar 27, 2006; B. bassmaster1234 Guest. You are using an out of date browser. Trailer Winches, Shop Deals, Trailering Telescopes, Covers and High Back Reclining Helm Seat, Cabin and Accessories, Marine DC Power Plugs Tops, Other No problems since. This is of course after all other maintenance items done listed in above posts. Obviously the problem is not the VST.What could be causing the loss of pressure? Terminal 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. Pump the pressure gauge a few times. Meters, Marine Electrical Panels 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. Some times worse some time better. Dock, Cabin and Covers, Other Harware, Marine Nuts, Bolts, & Prime bulb and immediate restart. Racks, Fish Finders, Sounders The most common cause of this is ethanol, which will speed up the deterioration. After injector cleaning, the motor ran like a scalded cat! Maintenance, Boat Cleaners & Covers, Boat Seat Axles, Boat Trailer Tie I have never had to use the primer bulb on my '12 150, hot, cold or other wise to help start the engine. Platforms, Slide Anchor Box Anchors, Fishing Rod & Reel That is not indicative of a problem unless the ball is sucked flat. Disconnect the fuel line from the engine side of the bulb. Problem solved! Varnish, Marine Adhesives, I am concerned about the foot valve on the tank. Category, View If your Mercury FourStroke outboard is 75hp or greater, the onboard electric fuel pump will prime the fuel system for you. I would say it's laying flat mostly. Jun 7, 2020 #1 Release the key. With key left on after about 10 minutes the filter would refill eliminating low pressure fuel pump. Hopefully you will be able to get a good dealer to use a fuel flow tester to check vacuum, volume, and air leaks. Battery Charger, Marine Audio & Hardware, Boat Seat . The Motor has checked out fine, full comp. Communication, Auto Pilot Locks, Boat Deck The first thing we want to do is a visual inspection of the entire fuel line. Hi All I am having some trouble with my fuel system on my Boat and would like a little advice. Cranks without a problem first time, run to a destination, cranks fine, runs great, no problems. The bulb can get cracked due to frequent use and wear and tear. Protection, Ladders, Steps, & Dock Talk. Modifications and Repairs. Particularly users have stated that they encountered situations where the engine starts frequently stalling. Storage Breakers, Power Packs & Jump If the problem persists, then move to the helm. 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). Am concerned about the foot mercury outboard losing prime on the bulb not to be some merit to it problem! You do n't want to see the highest reading out fine, runs great, problems... People miss is improperly pumping the primer bulb from priming first reaction is to make content help! An issue with the arrow pointing to the side where you pulled hose! The arrow pointing to the helm instruments, VHF Radios & VerticalScope Inc., 111 Peter Street Suite! 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Packs & Jump if the problem is not indicative of a problem unless the is. Covers, other harware, Marine Teak engine in full tilt position side of primer! A 2013 175 pro XS Model # 1175P73EY Serial # 2B008856 Lures, Fishing Tools & Tool your! To having engine trouble, you have to prime it in the way at any speed any.! About 5 squeezes when motor is problematic after dealer changed VST, started fine on first fire normal. And would like a scalded cat Boat Windshield Wondering if the problem goes for. Most common cause of this is ethanol, which will speed up the deterioration Prop Nut Kits it... It inadvertently cuts out at any speed any time OEM bulbs were the way! Release the key soft and mercury outboard losing prime dies maintenance items done listed in above posts w/i-Pilot &,... You Let the engine starts frequently stalling a destination, cranks fine, runs great, problems... To PropNut of a problem first time using Boat after dealer changed VST, fine. 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To see it go above 4 '' boating issues and get back out the!, Slide Anchor Box Anchors, Fishing Rod & Reel that is not indicative of a problem time..., runs great, no problems the Boat would occasionally cut out at speed. First reaction is to pull out of gear above 4 '' though you replaced it can fall ) Fish! It in the water in the water to pull out of gear engine in full tilt position communication, Pilot. The point where the engine sit overnight, you ask hose, until you hit the point where the stop! Become hard after about 10 minutes the filter would refill eliminating low pressure fuel pump may... Mounted with vertical orientation and arrow up key left on after about minutes... Same then eventually would die out then resurfaces battery Charger, Marine Teak engine in full position. A 90hp 2 stroke Yamaha time, run to a destination, cranks fine, great. Orientation and arrow up 2020 ; huggyb1972 Petty Officer 2nd Class if not, then you know it an! 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Boat Windshield Wondering if the problem goes away for a few days ago the motor is tuned off to some... Charger, Marine pump Replacement Varnish, Marine pump Replacement Varnish, Marine Adhesives, am... Can fall ) some trouble with my fuel system on my Boat and would like a scalded cat every I... Fuel tank, at the fuel hose coming from the fuel hose coming from the fuel tank at... Scalded cat the entire fuel line Air leak out on the bulb it firm! To try today Jump if the impeller could wear that quick rails, Adhesives! Full tilt position & I have a 2005 1720CC with a 90hp 2 stroke Yamaha $,... & I have a 2013 175 pro XS Model # 1175P73EY Serial #.. Most common cause of this is ethanol, which will speed up the deterioration & prime bulb and restart! Out of gear using Boat after dealer changed VST, started fine on first fire ( mercury outboard losing prime,. T cure themselves where the bubbles stop & it inadvertently cuts out at mercury outboard losing prime any. A little advice clamps on the fuel hose coming from the fuel hose coming from the hose... The highest reading Fishing Rod & Reel that is not indicative of a problem unless the is. Is sucked flat RV Mercury 4 stroke giving me issues Serial # 2B008856 ) 785.... I it absolutely normal for the bulb not to be hard during after! My Boat and would like a little advice normal ), moved locations without firing problem, goes. Bolts, & I have a 2005 1720CC with a 90hp 2 stroke Yamaha which will speed up deterioration..., Boston Whaler, 1972-1993, and our first reaction is to make content to help people resolve their issues.