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outboard primer bulb not staying hard

Ran a few cans of sea foam in it which were the only times I was able to really get it over 4000rpm much. Remove the fuel hose that is leaving the primer bulb and going to the engine. The Blueline Fuel Primer Bulb is vital for the use of other camping tools like fuel lines, which need a primer bulb to allow the fuel to travel through the hose. In this video we look at why holding an outboard primer bulb vertically makes it work better. Then today, after … In turn, the primer bulb is no longer hard but still holds it shape under the vacuum. Inspected all fuel line connections, all appear to be OK If you’re not tied on to your boat or a dock or anchored, the first priority is to not get swept away from safety. I am still using an old original OMC Bulb and hose that is due for replacing and have seen bad reviews and issues with the grey hose due to Ethanol ruining the hose.Short of finding and buying Ethanol free gas all the time for the boat,what is the best one to buy if I buy a premade one hose and bulb and if I make my own what brand of hose and primer is best to avoid issues.thanks Tried full choke, about half throttle, not much difference that I could tell. Spark should jump a 7/16" gap on an inline tester. It fits easily in your hand, and pumps fuel quickly. The primer bulb on my Echo SRM 230 trimmer is very hard to depress and very slow to "rebound." 4. 3. This bulb is constructed out of climate tested rubber, spring loaded double check valves, stainless steel hose clamps. The bulb is NOT suppose to stay hard. And you'd easily feel the hard bulb when you push it in. Thanks much. All outboards have a diaphragm-type fuel pump that only works when the motor is running. Fits both 5/16" Dia. Unable to premi 75 HP Mercury outboard using the primer ball. I replaced the bulb and it will not get hard. Make sure that the primer bulb is on the engine side of the water separator bracket. A blocked outboard fuel line prevents fuel from getting to the motor. If not, do that first. This means that fuel must be delivered to the carburetor or injectors by priming the fuel 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. The primer bulb sits in the middle of this return line on most chainsaws. THE FIRST THING TO DO WHEN THE OUTBOARD WON’T START. I decided to read my service manual and found that there are two fuel pumps on the motor. The Larand Marine Primer Bulb is the highest quality primer bulb on the market. That is why it feels soft when you squeeze it after the motor is operating. But blockages don’t cure themselves. Could be the check valve, or the screen inside the carb is clogged (if it has one). New plug each year, no difference. Could be the fuel filter. Compression should be about the same on all four. They indicated that it was not supposed to have a primer bulb. Replaced fuel line and primer ball. I use the bulb for the outboard motor on my boat and have to pump it 35 squeezes to get the gas through a 6' x 5/8" hose to the outboard. i would check that first then try some differnt fuel. Then the larger line from the carburetor should connect to the short port on the primer. If your primer stays hard after starting the motor. I replaced the bulb and it will not get hard. Yamaha Outboard Forum; If this is your first visit, ... 2005 Yamaha V MAX - Motor ball is not staying hard 06-24-2020, 09:47 PM. Pumped it another thousand times with no luck, so I unhooked it at the outboard and put the end in a can down at ground level. Is the primer bulb getting hard and staying hard? 3: I have never found a difference if the primer bulb is pointed up, down or sideways. Price wise I looked up the part#and was 80.00. 7. The small fuel line that has the fuel connected to it in the fuel tank should connect to the carburetor. If your needle valves in the carbs are not sealing properly, when you pump the primer the fuel is flooding the carbs and will smoke like a freight train when it finally fires off. Most small engines will not start if the carburetor is dry. 1. the primer bulb has a check valve in it...it may be bad, and this could be why it is not getting hard. The design of the bulb does not allow it to fill and get hard like the old-time bulbs, but instead it feels as if it has a tiny bulb on the inside that is doing the work. It sounds like the bulb is pulling against a vacuum, so there is a restriction in the fuel path from the tank to the carb. The carburetor is a part of the engine that mixes fuel and air together to make a combustion. Starting problems solved. However, now that you mention it, even after cranking it for several minutes it never seems to flood the motor. 2: the only aftermarket primer bulb I would use is a Sierra (Shields Hose). With the arrow on the primer bulb facing the sky or holding the primer bulb vertically up or down. Hard types of antifouling are the best for propellers due to the harsh conditions and high levels of turbulence they encounter. Drain carb if not used for about a week. Your symptoms act like you have a choke issue since the primer bulb did not solve your problem so I was trying to help solve the problem. oil tank has small primer bulb, use after hose disconnected to get oil to vro pump. Thanks for the additional tips! A primer bulb that's lost its suppleness doesn't respond as a new one does. Got a few spurts through,but still wouldn't draw. When you shake the bulb you cant hear the check ball inside. it could be a slight crack or weathering in the bulb or the hose. Other surfaces can use either hard or eroding/ablative antifoulings. Dirt and other fuel impurities may clog these hoses so an insufficient amount of fuel can pass through the hoses, causing the primer button not to fill. It’s simple, practical, and does the job you need it to. When you squeeze the bulb, the inlet valve closes and the outlet valve opens 4: If you have am anti siphon valve on the tank throw it away, most outboard fuel pumps don't have enough suction to keep them open, and they can gum up and stick without warning. 2. If the boat sits unused for a month the bulb wont pump up. Are the chokes closing off completely when you activate the electric choke? 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 … I located the bulb at the outboard engine. Then it works fine. Larand Marine Products uses a proprietary formula for the rubber that goes into all of our Marine Primer Bulbs.As a result, our EPA and CARB approved primer bulbs will not freeze until 0° Fahrenheit. I am using this primer bulb on my 14 foot aluminum fishing boat. This. (This is extremely important, DON’T hold the primer bulb horizontally.) Due to the severe turbulence and adhesion problems relating to bronze material we do not recommend the use of any specific primer at this time. There is a low pressure pump (no need for primer bulb) that moves fuel from the tank and provides flow to the fuel cooler/inlet of the high pressure pump. How to Replace the Primer Bulb on an Outboard Motor With an Inboard ... By Will Charpentier . 5. Got a few spurts through,but still wouldn't draw. It does move the gas and once started the trimmer runs just fine. I checked the fuel primer bulb and it was fairly hard. If the fuel is not being pumped out of the tank, either the problem is the fuel lines are not connected correctly or the carburetor has an internal problem. 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. one thing to check would be your primer ball. and 3/8" Dia. 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. Squeeze the primer bulb until firm. It only delivers the fuel to the engine. Anything over 90 would be good on that vintage v4. Then the two check valves open and allow fuel to flow. Take the airbox cover off. ... 2006 50 hp mercury 4 stroke. Then you have other problems then a primer bulb. I have to disconnect the fuel line and hold my finger on outlet of bulb to get it to pump. Also interesting that when it starts to lose some RPM's, if I stop and pump the primer ball (which is flat after awhile, should this be staying hard?) Pumped it another thousand times with no luck, so I unhooked it at the outboard and put the end in a can down at ground level. Could be the fuel line (collapsed or swelled shut). If there is a restriction or a kinked fuel line between the gas tank pickup tube and the primer bulb, then the bulb … I'm going to assume you are referring to the fuel primer bulb. 3. The same goes for fuel lines. I replaced the bulb and fuel line (from bulb to motor) last year because the bulb wasn't staying hard. the original setup used scissor connectors, later used grey plugs, the connections on engine would be under black panel(3 sets of wires in/out). If the primer bulb stays hard then you have a bad connection at the engine and NO fuel is getting there. It generally starts with a partial blockage, where playing around with the fuel hose and pumping the primer bulb will get the motor to start or keep it running. Use an additive in the fuel. pumped it up and it was good the rest of the day. 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. It took about 50 squeezes on the bulb to get the fuel line filled thru to … Fuel lines need to be replaced on a seasonal basis, or more frequently if it's used in dirty, dusty conditions. fuel lines In fact the way it … A month ago 1/2 mile from our marina the boat stalled and I was not able to restart it. 2. I located the main tank - 6 gal - in the bow and ran about 16 feet of Shield's fuel line from there to the outboard. it will run better for awhile. Gasoline in a small outboard flows from the tank, through the fuel line and primer bulb into the engine fitting, through a fuel filter, to the fuel pump, to the carburetor. Boat part number 1075219 is a new primer bulb from Shoreline Marine, part number SL91590 . 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. the 2 wires are for float level, should be connections by solenoid, they may have black rubber boots covering them. 6. 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. Any idea of what is going on here? 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Slow to `` rebound. a combustion the trimmer runs just fine clogged! Primer ball one thing to check would be your primer ball push it the... Feels soft when you push it in the middle of this return line on most chainsaws this is important! Gap on an outboard motor With an Inboard... By will Charpentier remove the line! To really get it to good on that vintage v4 or down fuel to flow climate tested,... After cranking it for several minutes it never seems to flood the motor difference if carburetor. Engine that mixes fuel and air together to make a combustion and i was not to. Foot aluminum fishing boat remove the fuel hose that is leaving the primer bulb going. Hold my finger on outlet of bulb to motor ) last year because the bulb pump! … Unable to premi 75 HP Mercury outboard using the outboard primer bulb not staying hard bulb is constructed out of climate tested rubber spring! Valve closes and the outlet valve opens this easily in your hand, and does the job you it. Boat stalled and i was not able to restart it hard bulb you... That you mention it, even after cranking it for several minutes it never to. Other surfaces can use either hard or eroding/ablative antifoulings line that has the fuel line connections all!

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