have to pump primer bulb to keep outboard running

The motor seems to be running fine, but I have never seen this before. Yamaha Outboard Forum; If this is your first visit, be sure to check out the FAQ by clicking the link above. I recall i read in the fuel system part of a manual that the bulb should be located near the tank. The question I have is when running (about 3500 rpm) my buddy notice the gas primer bulb was sucked in flat. ‘Priming’ the pump simply means filling it with water. Can’t keep your outboard motor running? But blockages don’t cure themselves. The fuel lift pump on most outboard motors operates from vacuum pulses derived from the crankcase. He only recalls two cases. If the fuel lift pump is not primed with fuel, the fuel lift pump will have to draw fuel from the fuel tank and prime itself. Much of the time, the oil alarm will sound for 10 seconds and the oil light will stay on. Finally, he explained that they don't use anti siphon valves, just fuel demand valves to prevent fuel flooding the engine. Any ideas? My 40 hp Evinrude runs in idle position for about 10-15 seconds and quits. I can hear it running when the key is turned to on. Last time it stalled running at 1200 rpms. Is it normal to have to pump the bulb every time you turn the engine off for longer than 20 minutes ? This happens every time when i am running at 3000-4000 rpm's. Its easy to start and runs very well, but stops suddenly. With all that said, anyone have … The carburetor is a part of the engine that mixes fuel and air together to make a combustion. Checked … I found nothing that would indicate a problem. Mophorn Boat Throttle Control 881170A3 Boat Control Box with 8 Pins … When it starts to lose power I can squeeze the bulb once to keep it running for another 30 seconds or so until it starts running weak again. PDA. A small engine doesn't create much suction so a small air leak on the fuel line will keep the fuel pump from getting fuel from the tank. 380 2. charliep. 09-10-2013, 07:50 PM . Replaced fuel filter water separator and same problem. This means that fuel must be delivered to the carburetor or injectors by priming the fuel system. « on: September 10, 2008, 01:04:23 PM » Gas primer bulb keeps going flat if motor doesn't run. As the pandemic continues, human resources departments are adjusting to keep businesses running and address employee needs. Some trips the motor would run fine and the net time out you would have to pump the fuel bulb constantly to keep it running. If I am able to shift into gear, it will run for 10-15 seconds and quit.I have … 1 of 2. You should have fuel in the bulb when running. I bought a rebuild kit for each side of the gas side of the pump. As long as the pump is not putting out over 7psi there is no need for return. I have determined that it does have an electric fuel pump mounted on the outboard. Most pumps will have a primer cap, which should be filled before the pump is turned on. I still did not get optimal primer bulb tension and the motor was not running great, so I inspected the hoses from that point to the input side of the new pump/vapor unit (they have been redesigned by Carter to be all one unit now) and found a leak at the fuel line input side. If you continue to feel like your heart is beating too slowly for … Same problem. If you do not, the check valve in the primer is bad. If you don't have a good stream of fuel, or you see air bubbles in the line, rebuild the pump. This is the OFF position. There are several methods to troubleshooting a stalling outboard engine. If the motor will start and keep running just fine all of the time when using the primer ball (with fuel pressure is being maintained on the FI rail), but not when the lift pump is operating, then I would suspect a vacuum leak somewhere between the primer ball and the inlet to the lift pump. I would have more hours on it but it keeps failing me. Gender: Posts: 193; White 00 Nitro DX 90 merc; Gas primer bulb going flat! Click to see full answer Also to know is, how does a gas primer bulb work? It is essentially not seating and drawing air in through the discharge port. Pushing the manual primer knob all the way in, prevents fuel from flowing through the primer. Pic courtesy:google Purpose: Most outboard motors have only a simple diaphragm fuel pump that operates from engine vacuum. I checked everything I could think of ,o-rings, checkvalve, fuel pump, hose clamps, gaskets everything to do with the fuel delivery system. All outboards have a diaphragm-type fuel pump that only works when the motor is running. Most times there is a air leak in the gas line check the o/ rings on the connection. Nothing related to that has to wait for the next morning; the lift pump is not … FARGO -- Don’t be … The tech that installed the unit did not use a metal clamp on the hoses and it was leaking and drawing air so I replaced it and the output side … Medications can help prevent the neurological and endocrinological causes of syncope. Most small engines will not start if the carburetor is dry. Your outboard may be stalling & running out of fuel due to three issues. Boat Repair Forum > Outboard Motors Forum > Johnson Evinrude Outboard Forum > 40 hp evinrude runs briefly. Motor runs fine and never starves for gas, but if motor is off for bout 30-40 mins I need to re-prime to start motor. ? So the engine needs the fuel pump rebuilt/replaced. Same problem. It is essentially not seating and drawing air in through the discharge port. Some outboards have a manual primer with three modes: OFF, ENRICHED, and PRIME. Unless the engine is running, cranking, or the primer bulb is being squeezed, opening the valve will not provide the additonal fuel required when starting a cold engine. If it does not, the … You should have fuel in the bulb when running. It definitely does not appear to have a squeeze bulb so that can be ruled out. Should the primer bulb be mounted near the tank, or closer to the engine, or it doesn’t matter? Since the fuel is getting sucked through the line, air leaks in instead of fuel leaking out. Low quality primer bulbs are often the cause of not being able to provide the outboard with enough fuel pressure for starting. Human resources staff altering practices to keep business running smoothly amid the pandemic | INFORUM inforum.com - Thomas Evanella. 24 Buffalo’s Patterson motivates Oliver to keep running. A bigger pump can overcome a small leak. He suggested either adding an inline pump or a larger primer bulb. We explore the three big issues that can be causing the problem as well as why outboard run out of fuel. This easy fix might make your day! Has anyone experienced this? Thus the fuel lift … The primer bulb gets soft but not flat. The way you have your primer bulb mounted … The primer bulb on small engines is a small plastic piece that, when pressed down, draws fuel from the fuel reservoir … Outboard Motors > Topic: Gas primer bulb going flat! No. Other uses can result in injury to the operator or damage to the outboard motor and other property. Asked by Wiki User. A local union-run food bank for laid-off Cast Members has been in danger of closing due to lack of funds, but the NBA Players Association is now donating $50,000 to keep it running a little longer.. Orlando Magic center Nikola Vucevic told Orlando Sentinel “We’re lucky to be in the … Then there is the other style that is a little more complex but works on the same principle as the Purge Primer. If your vent was not open then squeezing the ball would not keep the motor running if the fuel pump won't pull the gas then the suction from the ball would not be enough to pull it either. Will it keep running if you pump the bulb on the fuel line? Pressing the primer bulb creates a vacuum … The … After spending their summer in the Walt Disney World bubble, NBA players are now giving back to the Cast Member community. Avoid future workouts until you've been examined by your medical professional for the possibility of a more serious issue. If the fuel pump has failed, the primer bulb can be constantly squeezed in order to provide the outboard with fuel while running. 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 … 380 2. To verify, pull the outlet line off the pump, add a piece of clear hose about 18" long and put the open end in a container (don't want spilled fuel), remove the spark plugs, activate the kill switch, pump the ball until the clear hose has fuel in it, and crank the engine. Even if you have a high-pressure electric fuel pump on a fuel-injected powerhead, the electric fuel pump is supplied with fuel by a low-pressure diaphragm-type pump that must "hold prime" to continue operating. I intend to check the fuel pressure as soon as I can find time to actually troubleshoot rather than go boating plus I am going to replace the gas line too. I have a 2000 90hp Honda 4 Stroke engine Just had my boat engine serviced and it's running very smoothly now. Thanks. The presumption is that the new pressure relief valve is working correctly and that the engine is stalling … 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. … Thanks, John. 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. Pulling the manual primer knob out so … The use of … Buffalo is … ADD SPACE Laurie Cork Ph. I believe my engine is moving a little more fuel than the 4 strokes, about 25-27 GPH, and after hearing his story, I am wondering if the fuel bulb is not capable of supporting the flow or PSI of the fuel passing through. View Full Version : 40 hp evinrude runs briefly. Either the lift pump has failed, the boat is out of fuel or there is an air leak or blockage somewhere in the fuel lines running fuel from the tank to the engine. Engine starts to run faster, then dies without a couple of primer bulb pumps. Why … I have oil in the tank and gas tank (just in case). If you’re running and experience a significantly low pulse, slow to a walk, focus on your breathing and monitor your heart rate. One day after a trouble filled trip, I decided that I waS GOING TO FIND THE PROBLEM OR … All outboard motors have fuel pumps which are capable of lifting fuel from the fuel tank to the engine. Primer bulb had gas in it.took 1 pump to make hard. What makes an outboard boat motor surge and not run to its full power? 2: the only aftermarket primer bulb I would use is a Sierra (Shields Hose). In under two minutes, you could learn how to solve the problem for good! I did that with a 70 hp … The primer bulb on every hose i’ve had is located a foot or so from the tank. charliep. A typical primer bulb looks like this. It is also recommended to fill the feed pipe … He said that while he has heard of Fuel demand valve issues, they are rare. 3: I have never found a difference if the primer bulb is pointed up, down or sideways. So yes it does … This helpful YouTube video by Succstrat explains what might be affecting your ability to get going. You ... but you can substitute for the LP pump with your primer bulb - if the problem is that the LP pump has let the VST run empty, you can immediately fill it yourself with the bulb - in which case the engine should start. A blocked outboard fuel line prevents fuel from getting to the motor. Fuel pump rebuild is very easy, and the kit is $20-25. Would not start. FILE - In this Nov. 17, 2020, file photo, Buffalo running back Jaret Patterson, left, carries the ball while Bowling Green linebacker Darren Anders (37) and defensive lineman Ja'von Lyons (56) close in during the first half of an NCAA college football game in Bowling Green, Ohio. It could be the fuel pump, but it could still be a problem with the fuel line. This forces air out of the pump and creates a vacuum, allowing water to move through it once the pump is powered on. 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. Is a fuel return line necessary? Also an outboards fuel pump is not designed to draw fuel from a hose over 6 feet long so if you have relocated the tank for storage or convenience and exceeded that that could be a problem. leave the gas cap lose the vent may be plugged.Does the primer bulb going soft or flat.Next the fuel pump.If older Mercury might have a crank case leak. bunky1940. Post Jul 09, 2012 #2 2012-07-09T14:16. Never had that happen with one of my boats but I have … I then talked to one of the builders of my bass boat (Falcon). 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. How It Works. I have a 15 hp Gamefisher outboard.I have rebuilt the fuel pump and the carburetor (new needle & seat new seals and hoses.I have had it running perfect for as long as 15 minuets.,but it always seems to die out.when I pump the primer bulb on the fuel line gas will squirt out of the small overflow hole on the side of the carburetor. I replaced a few clamps where the various gas hoses attach to the … Then there is the other style that is a little more complex but works on the same principle as the Purge Primer. Unless your pump is able to ‘self-prime’, you will need to prime your pump before it is able to pump water. The fuel pump has 2 valves in the pump to keep fuel flowing in one direction when the valves get weak or bad the pump will not pump properly and cause loss of prime starving the engine for fuel. Not an issue for the first 2-1/2 hrs.the fuel lines were replaced when new motor was installed April 2018. I have one problem though, ever since the service then primer bulb keeps emptying after the engine has been switched off for around 20 minutes. He said his primer bulb was nearly flat at cruising speed, but the engine kept running and fuel kept flowing so he didn't think much of it. Do you ever pumpty, pumpty, pumpty that fuel primer bulb and still can’t get your outboard motor going? Squeezing the primer bulb is doing the same as the fuel pump does. He also said that they use 3/8 inch fuel hoses. If you do not, the check valve in the primer is bad. PugetSoundBoater US Member - 2 Years Replies: 980 Topics: 136 November 6, 2016 at 4:52 pm #47074. The purpose of the primer bulb is to prime the fuel lift pump with fuel. By JOHN WAWROW December 10, 2020 GMT. The purpose of the pump is powered on uses can result in injury to the Cast community! Resources departments are adjusting to keep businesses running and address employee needs fuel from the tank running smoothly amid pandemic. Or so from the crankcase line, air leaks in instead of fuel other uses can result in to! Pressure for starting low quality primer bulbs are often the cause of not being able to provide the outboard enough! A more serious issue constantly squeezed in order to provide the outboard motor other... & running out of fuel due to three issues then dies without a of. ’ the pump simply means filling it with water their summer in the fuel system part of manual! The same principle as the pump is turned have to pump primer bulb to keep outboard running there are several to! Repair Forum > 40 hp Evinrude runs briefly all the way in prevents... Before the pump is not putting out over 7psi there is the other style that is a little more but! Determined that it does have an electric fuel pump does have fuel pumps which are capable of lifting fuel getting., air leaks in instead of fuel leaking out creates a vacuum … you have! Good stream of fuel leaking out have oil in the fuel lift pump most... 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