Bosch 2447010038 Hand Primer Pump. $37.99. Pump the squeeze bulb a few times (since my hands are holding the fuel hose and screwdriver, I use my foot if there’s no one else in the dinghy) and see if there is good fuel flow with each squeeze. The primer bulb would be the first place to check. If this bulb is pressed too many times, it will flood the cylinders to the point where the spark plugs can longer ignite; thus, rendering your engine dead in the water. Ray Bobo says: July 18, 2017 at 1:02 pm. attwood 93812ULP7 Universal Fuel Line Kit, 12 Feet Long, 3/8-Inch Diameter, Multi-Layer Low-Permeation Primer Bulb, One Size 4.6 out of 5 stars 30. 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. I have a tiller handle on it. $26.00. it could be a slight crack or weathering in the bulb or the hose. The easiest way to check the fuel pump (if you have a plastic fuel tank) screw the breather screw down on the filler cap, then run the engine, If the fuel pump is good it will suck the sides of the tank in! I have never had to prime it except for the first time of the season and that is usually only pump and half. A hole in the fuel line on the tank side could also cause the fuel pump to suck air instead of fuel from the fuel tank. After the engine starts, the fuel pump takes over and sucks gas from the tank. Kimberly Myers. Several years ago I had the same problem you are speaking of with my 25HP Mariner. That is a primer pump When you advance the throttle it squirts gas into the carb being it does not have a choke. If it seems like there is a blockage, the long-term solution is to replace the hose. View and Download Mercury 25 operation and maintenance manual online. Yamaha, Mercury & MerCruiser Parts & Rigging Schematics. Abrupt stops. These fuel tanks are available as an accessory or are provided with certain portable outboard models. Mercury 9.9HP outboard won't start or stalls shortly after starting? 2 Responses to How Primer Bulbs Work. But there is a small chance that the tube that goes into your tank (and gas) may have a crack also. I keep a primer bulb and hose clamps aboard for quick installation in case my engine requires it to get home. After priming the bulb the boat won't start half the time. Download a repair manual too. Single-Engine Controls . A fuel pump with a defective diaphragm may be torn or have developed holes from wear. These tears or holes allow fuel to escape past the diaphragm and exit the fuel pump housing. Darn that ethanol. Contact Us: 1-888-625-5460 | Hablamos Español. Thanks Mike: cmarques: posted 10-10-2006 09:29 PM ET (US) Check the left side of the engine for a burnt hose I believe it is called a "pulse fuel line" and is about a 2-3 inch elbow 3/8 line near the fuel pump. Mercury Marine has created a new portable pressurized fuel tank that meets the preceding EPA requirements. Contact Our Parts Experts: 1-888-625-5460 | Hablamos Español. Gauges & Controls. This is a 15" shaft motor, I do have another motor identical to this coming up that is 20". Search. Take the hood off. If you don't have a good stream of fuel, or you see air bubbles in the line, rebuild the pump. Also for: 25 4–stroke, 40, 50, 60. My 25 Hp Yamaha 4-stroke is the same way. Pacer Pumps have many uses around the farm, ranch or home. The usefulness of primer bulbs is often under-appreciated until tool users go to start their machines and find their engine's primer bulb excessively worn, broken, or cracked. When you are cruising along and then your speed starts to drop, you may have a fuel pump problem. A blocked outboard fuel line prevents fuel from getting to the motor. If it was full or sitting so that the gas was covering the complete tube…you didn’t even know there was a problem…. Newegg shopping upgraded ™. I can smell gas so I think it's flooding, but it even does it on occasion when I only prime the bulb a couple of times. Those pumps dont create alot of pressure anyway, but once the system is full the filter should not interfere with its pressure, just takes longer to fill the lines etc at first. The carburetor is a part of the engine that mixes fuel and air together to make a combustion. Incorrect use of the priming pump may also cause a boat motor to flood. Mercury® Parts Catalog. A leaking fuel pump can be noticed as fuel droplets or puddles on the ground and a strong smell of gasoline when the car is running. But blockages don’t cure themselves. jimh: posted 10-09-2010 10:08 AM ET (US) Fuel lift pumps that operate on electricity can run without the engine being cranked. Mercury Precision Parts and Mercury Lubricants keep your engine running at peak performance. i would check that first then try some differnt fuel. Sign In; Create an Account; Customer Service; Toggle Nav. This does have one spot in hood that has some damage but otherwise it is a good looking motor. 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. Here is a list of possible causes and corrections. Pumping the bulb simply gets the fuel to the fuel pump when the motor is not running so the engine can start. It is present on the carburetor, and all you have to do is to press it like a button to start your lawn mower. I do have the option of converting it to remote f needed. If the tank is not vented, the engine will starve for gas and quit. Gauges & Displays. My Oil primer bulb is generally hard, I can usually get about half a pump. A new electric boom regeneration valve minimizes pump l ow when the boom lowers down, which … 95 Merc. Mercury Outboard Parts and Mercury Marine Motors are among the most popular outboard motors for sale today. Search. Keep the suggestions coming guys. If this does not work, try running the engine up to full throttle whilst pumping the fuel bulb. There may not even be signs of leaking, since a fuel line leak on the tank side would have to be above the fuel level for leakage to show. The older kits that may be on a dealers dusty shelf may have a white colored primer rod- these white ones are the first design primers and do not work- I learned this the hard way. I have a 2007 Mercury 4- stroke 8-hp outboard that gives me fits. MERCURY OEM Fuel Primer Bulb for 5/16 & 3/8 inch Inside Diameter Hose 8M0061876 4.6 out of 5 stars 165. pumped it up and it was good the rest of the day. Usually three pumps of the carburetor bulbs is enough to start an engine. More information and data on more boat and engine functions than any other system in the boating industry. Search by serial number to find the exact part you need. universal 12v fuel pump for car van tractor boat brand new. Most small engines will not start if the carburetor is dry. This is a clean good running freshwater motor. It’s similar to running out of a tank of gas. So if your fuel gauge shows full but your work day is coming to a halt, the fuel pump is probably to blame. And look back toward the carb. If the fuel pump is electric, the 12-volt power may be shorted. Butch. If theres a little pump there. When you are looking for specific Mercury Marine Part Numbers, why pay the normal high prices for OEM Mercury Marine Parts & Accessories when you can shop PPT online for huge discounts and free shipping. The fact that you pump the bulb and it starightens out ( have you done this under power as well) shows either an air leak, a bad fuel line bulb or a fuel pump. The priming bulb is a small rubber button that pumps fuel into the motor when pressed. 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. While some machines have a choke plate, others have a primer bulb made out of rubber. 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. 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. Keep an eye on your primer bulb for corrosion and wear & tear. Search. Lastly, the fuel pump on these motors attaches to the carb body and should also be rebuilt at the same time as the carb- again, this is pretty easy to do. when you release the breather you will hear the air being drawn in. Not much maintenance is needed aside from replacing it if it becomes damaged or stops working properly . 0L replacing timing belt, water pump and front seals, part 5: Water pump. Mercury's pre-treatment priming and painting process is engineered specifically for saltwater use, ensuring long-term protection of aluminum castings, and is a vital part of the 20hp EFI FourStroke’s exceptional corrosion resistance. Cold starting a gas engine without a fresh squirt of fuel in the carburetor is difficult to say the least. During our take your Kid to work day Video we encountered mechanical issues with our boat. You could also experience a slower rate of acceleration. New Genuine Toyota. Special Features Of The Portable Fuel Tank. 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. 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. HOME; DOWNLOAD MANUALS; News Ticker [ August 9, 2018 ] DOWNLOAD MerCruiser 350 Mag MPI Service Manual MerCruiser Repair Manuals [ August 6, 2018 ] DOWNLOAD 2012 Evinrude E-TEC 75hp 90hp Repair Manual Evinrude E-Tec Repair Manuals [ August 5, … ePathChina® Hot Fuel Pump Hand Primer Bulb Fuels Used For Cars Ship Boat Marine Diesel Gas Petrol Engine Oil 4.3 out of 5 stars 119. I also had the boat in the water last week and constantly squeezed the bulb, wouldnt stay running, bulb was hard. one thing to check would be your primer ball. Black Max fuel pump: 3: Mercury pulse fuel pump question: 11: 1985 Merc 25 hp Fuel Pump: 5: Electric fuel pump oxidized Mercury EFI HP50 Year 2011: 3: Fuel pump help on a 1985 90hp inline 6: 1: Fuel pump comparison: 2: 1998 Mercury 9.9hp 4 stroke Serial #: 0H014716, fuel pump or carb. It works by squirting fuel into your engine. It is connected to a 2.5 gal container with a bulb type primer. If you would have your tank sitting so that the crack portion of the tube was out of the gas…it wouldn’t run. About the Author. In stock on January 25, 2021. I have … Related Posts No related posts found! My use of the "lift pump" term may be incorrect as I've heard it referred to as a "transfer pump" by some. Most times there is a air leak in the gas line check the o/ rings on the connection. Mine burnt through and caused all kinds of running problems but made a cough or air suck type of noise and rpm's would drop. Enter the engine serial number or choose the appropriate year and model to find the maintenance and hard parts that you need. I checked everything I could think of ,o-rings, checkvalve, fuel pump, hose clamps, gaskets everything to do with the fuel delivery system. Logged hughesjasonk. 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A blocked outboard fuel line prevents fuel from getting to the motor when pressed do have the of...