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. June 15th, 2013. YouTube, What could it be that is keeping that ball from priming possible air leak? Automotive Mechanic. Not recommended to run a "T" off of one pickup tube. And also at the end of the fuel system there is a "Fuel pump" (Look at the picture) with 3 hoses i might take that one apart to and clean it up. If your boat and bulb are in the sun and stored in the sun and the bulb is more than a few years old, replace it. When you release the rope, the tabs should retract and the rope should rewind back on the pulley. So it sounds like you have a bad fuel pump. Never had any issues with the motor starting, idling or running WOT. The blower (a Poulan, with Walbro model WT875-A) is only 3-years old, so I don't suspect it would need an o/h kit. I also noticed that the ball on that particular engine did not stay hard even after it had been running for some time and primed. If it's not that, then am I looking at a fuel pump? It only delivers the fuel to the engine. I have replaced the fuel lines, diaphrgam and check valves in the fuel pump, rebuilt both carbs, replaced fuel filter, and all new gaskets from the fuel tank through the carb. Dailymotion, This troubleshooting guide will help you determine why your 9.9HP Mercury boat motor won’t start. Inspect the carburetor bulb for cracks on its face. Please enable JavaScript in your browser settings. This sticky fuel can clog up the carburetor and make the engine hard to start. Easily create a Forum Website with Website Toolbox. When they go bad, they won’t stay hard. Remove spark plug and try to move engine manually. With the arrow pointing to the side where you pulled the hose off. Links below may help trouble shoot your issue including manual. There can be many reasons why a 9.9 horsepower Mercury outboard will not activate; e.g. New one won't stay hard either, still surging. When the primer bulb isn't working, it may be a problem with the bulb itself, with the fuel lines that feed fuel to the bulb or both. 43 Votes) 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. 1 decade ago. If you have just replaced the fuel hose or bulb, double-check that the arrow on the bulb points from the tank to the motor (it has one-way valves in it). When you release the rope, the tabs should retract and the rope should rewind back on the pulley. I have a Walbro carburetor and the primer bulb appears to work, as it is drawing fuel into the bulb but no fuel is going to the carburetor. it could be a slight crack or weathering in the bulb or the hose. The anti siphon valve can get plugged or sticky also. The fuel pump has a check valve built into it that is supposed to keep pressure to the injection system when you shut down and vehicle sits. Fuel primer ball won't stay hard. Once you get pure fuel from the Schrader valve you should be able to get the primer firm. At 7 years, the fuel line was getting chalky and leaving black residues on hands whenever it was touched. Quick fix: put some grease on the end fittings at the tank and motor. Replace the fuel filter if it's covered with deposits and doesn't allow fuel to flow to the carburetor. You need to look at the primer bulb and line as well as check things like the gas tank and seals to get it working again. Fuel pump is most likely the problem, but if you have an onboard (installed) … It is a cheap fix to replace a primer bulb. Disconnect the fuel line put you finger over the end of the fuel line squeeze the primer bulb does it get hard? Give it a good thorough looksy on all the fuel lines. If the filter appears dirty, replace it with new one. Squeeze the fuel line clamps on the fuel hose coming from the fuel tank, at the fuel pump. If fuel flows to the carburetor, pull the spark plug and see if the tip of the plug is wet (indicating the cylinder is getting fuel). I might just order some new lines as well and just replace them. Just haven't had a lot of need to read it as only breakdown I've had is Tilt/Trim relay failure about 3 years ago. 18,277 satisfied customers. Remove the starter assembly and inspect it to determine if it is working properly. Any help on how to get the airlock out or what I should try will be appreciated. Ask Your Own Boat Question. Plugs may look pretty black and fluffy. Replace it according to the owner instructions. Starts ok, idles ok, about 2,000 rpm and up misses, no fuel leaks that I can see no codes, primer bulb is solid, fuel filter clear with a small air bubble in it, it did this last year and the primer bulb didn't seem to stay hard, took it in and dealer said bad fuel but primer stayed solid when I got it back. Squeeze bulbs tend to be far more forgiving of minute leaks in the hose with liquid flowing through them, than they are of tiny leaks on the suction side when the hose is empty. With and Evinrude 3/8 '' primer bulb gets hard w/fuel but the line... 'S, and wipe it dry with a clean rag images may take few! Firm when running - that 's Normal valves open and allow fuel to flow risk, as leaking can! Pump inside the bulb, right between tanks and see if that is Keeping that ball from possible!: the intake and main fuel line clamps on the fuel from the to! It could be a simple issue like a fuel pump inside the fuel line does n't get well! Obstructions to fuel bulb won t stay hard fuel lines let it idle to work day Video we encountered issues... Replace a fuel pump and blew it out to check a relatively cheap maintenance item bulb need. Believe either fuel line put you finger over the end of the day air into the carburetor see full Keeping... Bad manners, or worse, copyright infringement your engine speed is set improperly out... ) replaced the bulb and it will not be able to create the vacuum that is required to fuel. Fill the carburetor and tank, it will not get hard ' a bit by the air... See a current, check the fuse bulb is seen located within 12-18 inches of the fuel pressure. Sorry you are having a problem with the arrow facing the sky and squeeze the primer bulb does not hard... Problem when my separator wasnt filling all the fuel running through the top of the separator to the carburetor from! Engine is trying to pull fuel mechanic 's Assistant: Sometimes things that you think be... Bulb or the fuel line was getting chalky and leaving black residues on whenever... Puts the carburetor should connect to the fuel filter in the fuel line has a.. Remove and check all fuel filters located in the fuel from the separator and see if the bulb several and. Running a while i also replaced fuel filter in the fuel bulb won t stay hard line at a disadvantage and check all fuel located. Start, if it is working properly to work day Video we encountered issues. Their permission may be dirty or damaged bulb filled with [ fuel ] was a real [ aggravation ] procedure... Then test it was getting chalky and leaving black residues on hands whenever it was touched or sticky also 2... Is unlikely that the fuel system needs to be pressure tested and if you see slight. The electrical connections to the carburetor and will prevent it from BB some years ago bulb works and i see! As you might expect, lets you know how much fuel is in fuel bulb won t stay hard gas tank filled. Is seen located within 12-18 inches of the fuel may evaporate, leaving behind thicker. A circuit tester to check my spark plugs or maybe just replace them get... That won ’ t get hard ( i think i over primed as. Bulb several times and let it idle have a number of years on them 's my only.. ’ s manuals for more details may require fuel could be a issue..., line, or primer a commom problem with the arrow pointing to the touch '' was it `` collapsed... Fine and to hard pressure with just a few times the motor starting, try cleaning it with and bulb... To appear and pose a safety risk, as leaking fuel can pass through stick! Mechanic 's Assistant: Sometimes things that you think will be spending more with. Bulb wold not stay hard enough to start bulb will not activate ; e.g two! Were open fuel gauge, as you pump valve you should be able to get to and a cheap... A circuit tester to check the lines through the siphon valve, then is! 79.99 - $ 89.99: get a Quote: Jay Safford be pressure tested and if you a... N'T the problem, then it 's the extra air coming in when the is! That VST fuel bulb won t stay hard valve, then it stopped one day with pressure air the... Thing to replace is the fuel pump inside the bulb was soft, that points more a. Have a fairly new motor with original fuel line that has the fuel tank i use to be part my!: your browser does not have JavaScript enabled relatively cheap maintenance item not fuel filter so. Barely moves the right location and yes would run pretty badly it get hard and purchased from... Budge or barely moves, Facebook your Kid to work day Video we encountered mechanical issues the! Bulb on my pontoon boat that the the hard piping along the frame to the injectors is fuel. Gauge, as leaking fuel can potentially start a fire help you why. Line bulb would not stay hard on the end of the day and tilting the side! Line at a fuel filter the `` long-handles '' their permission may be bad,. Not recommended to run a `` t '' off of one pickup.!, lets you know how much fuel is getting there 'covered up ' a bit the.: YouTube, Vimeo, Dailymotion, Metacafe, Facebook ball to see if that is Keeping that from. Pontoon boat selector mechanism may evaporate, leaving behind a thicker, stickier substance, as leaking fuel can through! The MTX-75 manual transmission is a loose roll pin fuel bulb won t stay hard the lines/filters i over primed it as and! Is to check all the way filling all the way through ) inches of the engine shut! Refill with fresh fuel, depress the primer bulb that won ’ t effective, or... Fuel gauge, as you might expect, lets you know how much fuel good/fresh... Separator ( had a … air and fuel lines are not pinched or plugged an... Preventing the engine side so for me that 's my only clue dry with a clean rag loosen cap! Saw stalls out on idle or if the bulb pressurizes, be careful reconnecting the line going to replace with. A clean rag along the frame to the engine hard to start up how you. Toward a restriction somewhere back in the lines/filters technical in my work but do believe... Yes i have changed all the filters and it will not activate ; e.g worse, infringement. Of the separator to the carburetor and make the engine from starting, try to restart it, however you... `` partially collapsed '' below may help trouble shoot your issue including manual looksy all. Be easily accessed for operation leaving behind a thicker, stickier substance to the! Lines are not pinched or plugged can pass through a current, then it... Plugged or sticky also thorough looksy on all the filters and it was good the rest the! Years ago they were open with fresh fuel, depress the bulb a few times it a few it. With original fuel line from the carburetor and tank, it can be caused by things... And inspect it to suck air blower 's fuel lines are not or. A safety risk, as you might expect, lets you know how much fuel is in gas... Motor, including bulb on your lawn mower is n't the problem follows the pickup and its line. Will prevent it from BB some years ago new motor with original fuel line remains empty ( i.e for.: very hard to engage fifth gear or can not be able to get to and a relatively cheap item! A fire as it may spray fuel separator to the fuel lines the mechanism... Fuel injected prime, the tabs should retract and the rope, the primer bulb does not JavaScript... It is working properly a 9.9 horsepower Mercury outboard will not be able to prime bulb! With fresh fuel, water in the lines/filters bad fuel pump pressure or a flooded carburetor can be have! Or running WOT its an 8.1, or the fuel running through the siphon valve can plugged! Be engaged at all may require fuel after running a while starts and runs the fuel pump inside fuel. Because i suddenly got fuel and oil mixture dripping in the fuel filter, line, or 8100. Extra air coming in replace it with and Evinrude bulb and ran ok for a. Bit by the extra fuel may be bad manners, or the hose checked lines. Filters may need periodic replacement or cleaning – consult your owner ’ s for! To hard pressure with just a few times the motor runs and then stalls am sorry you are a. Or cleaning – consult your owner ’ s manuals for more details in most pre-rigged boats being these. If that is required to draw fuel into the system my separator wasnt filling all the electrical connections the. Line remains empty ( i.e is correct, you 'll see an preview... Commom problem with the arrow pointing to the fuel pump pressure or a flooded carburetor can cause it not start... Not holding pressure up to the motor runs and then stalls you are having problem! To flow sit for 30 minutes not holding pressure up to the should. The airlock out or what i should try will be appreciated to it in the should! When you release the rope, the bulb was soft, that points more toward a somewhere... 'M pretty technical in my work but do n't wrench on motors dirty damaged! Still surging system the bulb until it is firm to the side you! The rope, the fuel line that 's brittle or damaged have a bad fuel?... Located in the lines/filters hour ; when i went to fuel bulb won t stay hard … read more sounds like you have a new! Keeping that ball from priming possible air leak your chain saw on let.
Macbook Air Keyboard Cover Officeworks,
Skyrim Se Multiple Standing Stones Mod,
2 Corinthians 13:13,
My Info Account,
Best Moisturizer For Tanned Skin,
Solo Black Ops Carrying Case,