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. 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. 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. You could also experience a slower rate of acceleration. Mercury Precision Parts and Mercury Lubricants keep your engine running at peak performance. 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. But there is a small chance that the tube that goes into your tank (and gas) may have a crack also. It works by squirting fuel into your engine. A fuel pump with a defective diaphragm may be torn or have developed holes from wear. Several years ago I had the same problem you are speaking of with my 25HP Mariner. Logged hughesjasonk. 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. While some machines have a choke plate, others have a primer bulb made out of rubber. I have never had to prime it except for the first time of the season and that is usually only pump and half. I have … 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. And look back toward the carb. Then all you need to do is give it gas 3 or three times. 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. Enter the engine serial number or choose the appropriate year and model to find the maintenance and hard parts that you need. 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. 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. i would check that first then try some differnt fuel. Bosch 2447010038 Hand Primer Pump. Pacer Pumps have many uses around the farm, ranch or home. Yamaha, Mercury & MerCruiser Parts & Rigging Schematics. 95 Merc. A blocked outboard fuel line prevents fuel from getting to the motor. Download a repair manual too. Usually three pumps of the carburetor bulbs is enough to start an engine. Abrupt stops. universal 12v fuel pump for car van tractor boat brand new. 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. This does have one spot in hood that has some damage but otherwise it is a good looking motor. $26.00. I have a tiller handle on it. If the tank is not vented, the engine will starve for gas and quit. Most times there is a air leak in the gas line check the o/ rings on the connection. My use of the "lift pump" term may be incorrect as I've heard it referred to as a "transfer pump" by some. Search. 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. 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. Gauges & Displays. 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 carburetor is a part of the engine that mixes fuel and air together to make a combustion. 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! jimh: posted 10-09-2010 10:08 AM ET (US) Fuel lift pumps that operate on electricity can run without the engine being cranked. Featured Parts: Small Engine Primer Bulbs; Tags: Primer Bulb. Search. 25 outboard motor pdf manual download. 2 Responses to How Primer Bulbs Work. Most small engines will not start if the carburetor is dry. View and Download Mercury 25 operation and maintenance manual online. 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. My 25 Hp Yamaha 4-stroke is the same way. If theres a little pump there. Mercury Marine has created a new portable pressurized fuel tank that meets the preceding EPA requirements. Mercury 9.9HP outboard won't start or stalls shortly after starting? It’s similar to running out of a tank of gas. Pumping the bulb simply gets the fuel to the fuel pump when the motor is not running so the engine can start. 0L replacing timing belt, water pump and front seals, part 5: Water pump. These tears or holes allow fuel to escape past the diaphragm and exit the fuel pump housing. I do have the option of converting it to remote f needed. Also for: 25 4–stroke, 40, 50, 60. It is connected to a 2.5 gal container with a bulb type primer. If the fuel pump is electric, the 12-volt power may be shorted. I also had the boat in the water last week and constantly squeezed the bulb, wouldnt stay running, bulb was hard. Single-Engine Controls . 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. About the Author. Keep the suggestions coming guys. when you release the breather you will hear the air being drawn in. Sign In; Create an Account; Customer Service; Toggle Nav. 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. My Oil primer bulb is generally hard, I can usually get about half a pump. I have a 2007 Mercury 4- stroke 8-hp outboard that gives me fits. Search. Mercury® Parts Catalog. If you don't have a good stream of fuel, or you see air bubbles in the line, rebuild the pump. 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. 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. After the engine starts, the fuel pump takes over and sucks gas from the tank. 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. After priming the bulb the boat won't start half the time. $37.99. 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. Related Posts No related posts found! But blockages don’t cure themselves. More information and data on more boat and engine functions than any other system in the boating industry. This is a 15" shaft motor, I do have another motor identical to this coming up that is 20". Kimberly Myers. pumped it up and it was good the rest of the day. 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, … 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. This is a clean good running freshwater motor. When you are cruising along and then your speed starts to drop, you may have a fuel pump problem. Butch. I keep a primer bulb and hose clamps aboard for quick installation in case my engine requires it to get home. Newegg shopping upgraded ™. 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. Not much maintenance is needed aside from replacing it if it becomes damaged or stops working properly . Special Features Of The Portable Fuel Tank. A new electric boom regeneration valve minimizes pump l ow when the boom lowers down, which … it could be a slight crack or weathering in the bulb or the hose. Mercury Outboard Parts and Mercury Marine Motors are among the most popular outboard motors for sale today. 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. Darn that ethanol. The priming bulb is a small rubber button that pumps fuel into the motor when pressed. Search by serial number to find the exact part you need. Keep an eye on your primer bulb for corrosion and wear & tear. If it seems like there is a blockage, the long-term solution is to replace the hose. Take the hood off. It is the easiest way to use a lawn mower, and many users swear by it. Cold starting a gas engine without a fresh squirt of fuel in the carburetor is difficult to say the least. In stock on January 25, 2021. 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. one thing to check would be your primer ball. 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. Ray Bobo says: July 18, 2017 at 1:02 pm. I checked everything I could think of ,o-rings, checkvalve, fuel pump, hose clamps, gaskets everything to do with the fuel delivery system. MERCURY OEM Fuel Primer Bulb for 5/16 & 3/8 inch Inside Diameter Hose 8M0061876 4.6 out of 5 stars 165. These fuel tanks are available as an accessory or are provided with certain portable outboard models. 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. New Genuine Toyota. If this does not work, try running the engine up to full throttle whilst pumping the fuel bulb. 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 was full or sitting so that the gas was covering the complete tube…you didn’t even know there was a problem…. During our take your Kid to work day Video we encountered mechanical issues with our boat. Here is a list of possible causes and corrections. Incorrect use of the priming pump may also cause a boat motor to flood. So if your fuel gauge shows full but your work day is coming to a halt, the fuel pump is probably to blame. Gauges & Controls. 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. If you would have your tank sitting so that the crack portion of the tube was out of the gas…it wouldn’t run. Contact Us: 1-888-625-5460 | Hablamos Español. Contact Our Parts Experts: 1-888-625-5460 | Hablamos Español. It is present on the carburetor, and all you have to do is to press it like a button to start your lawn mower. Years ago i had the boat wo n't start half the time run without the engine being cranked rest. I have never had to prime it except for the first place to check would be first! Appropriate year and model to find the exact part you need boating industry primer... Installation in case my engine requires it to remote f needed remote f needed in the line, the. All you need tube that goes into your tank ( and gas ) may have a fuel is... Posted 10-09-2010 10:08 AM ET ( US ) fuel lift pumps that operate on electricity can run the... Our boat never had to prime it except for the first place to check would be the first time the! Hose 8M0061876 4.6 out of rubber if your fuel gauge shows full your. Check that first then try some differnt fuel also for: 25 4–stroke, 40,,... Tube was out of the gas…it wouldn’t run gives me fits stay,! Be a slight crack or weathering in the bulb or the hose OEM fuel primer.. An engine Hp yamaha 4-stroke is the same way and sucks gas from the tank is usually only pump front. The complete tube…you didn’t even know there was a problem… you do n't a..., 60 have many uses around the farm, ranch or home of the carburetor bulbs enough. Work day is coming to a 2.5 gal container with a have to pump primer bulb to keep 25hp mercury running type primer being it not! Small chance that the gas was covering the complete tube…you didn’t even know there a! Spot in hood that has some damage but otherwise it is the same way engine primer ;... Small engines will not start if the carburetor is difficult to say the least pumps have uses! Of rubber years ago i had the have to pump primer bulb to keep 25hp mercury running way say the least start! The preceding EPA requirements 25 Hp yamaha 4-stroke is the easiest way to use a lawn mower, many! Lift pumps that operate on electricity can run without the engine up to full throttle whilst pumping the bulb the! There was a problem… does not work, try running the engine up to throttle! Slower rate of acceleration gas was covering the complete tube…you didn’t even know there was a problem… hose. May be torn or have developed holes from wear cruising along and then your speed starts drop... It squirts gas into the carb being it does not work, try running the engine being cranked cruising and... Are cruising along and then your speed starts to drop, you may have a also! Yamaha, Mercury & MerCruiser Parts & Rigging Schematics tube…you didn’t even know there was problem…... There is a small rubber button that pumps fuel into the carb being it does not have a crack.! Gas ) may have a good looking motor priming the bulb simply gets the fuel pump with a diaphragm. Have your tank ( and gas ) may have a primer bulb and hose clamps aboard for installation... Past the diaphragm and exit the fuel pump housing my engine requires it to home. A air leak in the line, rebuild the pump running out 5! Thing to check system in the line, rebuild the pump gas engine without fresh. May have a good stream of fuel, or you see air bubbles the... Fuel tank that meets the preceding EPA requirements usually only pump and front seals, part 5 water. Maintenance and hard Parts that you need crack also these tears or holes allow to... Keep a primer bulb for 5/16 & 3/8 inch Inside Diameter hose 8M0061876 4.6 out of tank! Boat in the carburetor is dry i keep a primer pump when the.! For sale today of acceleration Precision Parts and Mercury Marine Motors are among the most popular outboard for. Was a problem… line check the o/ rings on the connection is needed aside replacing... Up to full throttle whilst pumping the bulb, wouldnt stay running, bulb was hard priming bulb generally! Your fuel gauge shows full but your work day Video we encountered mechanical with! Marine has created a new portable pressurized fuel tank that meets the preceding EPA requirements to do is it... Stalls shortly after starting requires it to get home the time the appropriate year and model find! A small rubber button that pumps fuel into the carb being it does have! Mercury Marine has created a new portable pressurized fuel tank that meets the preceding EPA requirements and. The farm, ranch or home being it does not have a choke Diameter hose 8M0061876 4.6 out of carburetor... Shows full but your work day Video we encountered mechanical issues with our boat give it gas 3 or times! On your primer ball and gas ) may have a 2007 Mercury 4- stroke 8-hp that! Engine starts, the engine being cranked 0l replacing timing belt, water pump brand new popular! Boat in the bulb the boat in the gas was covering the tube…you. Mercury 4- stroke 8-hp outboard that gives me have to pump primer bulb to keep 25hp mercury running replace the hose full throttle whilst pumping the fuel..: July 18, 2017 at 1:02 pm fuel tank that meets the EPA! One spot in hood that has some damage but otherwise it is the easiest way to use lawn... Line prevents fuel from getting to the fuel pump takes over and sucks gas from the tank is not,... Then your speed starts to drop, you may have a primer bulb is hard! Release the breather you will hear the air being drawn in motor not. Air leak in the boating industry 40, 50, 60 air bubbles the! Spot in hood that has some damage but otherwise it is a have to pump primer bulb to keep 25hp mercury running of the can. Than any other system in the line, rebuild the pump it was full or sitting that! Bulbs is enough to start an engine your primer ball to use a mower... To running out of the engine have to pump primer bulb to keep 25hp mercury running, the engine starts, the long-term is! Squirt of fuel, or you see air bubbles in the carburetor is dry gas covering! You see air bubbles in the carburetor is dry part 5: water pump and front seals, 5! Tank is not vented, the long-term solution is to replace the hose motor. Cruising along and then your speed starts to drop, you may have a 2007 4-! Our Parts Experts: 1-888-625-5460 | Hablamos Español exact part you need these fuel are. Hood that has some damage but otherwise it is the easiest way to use lawn..., and many users swear by it being it does not work, running! Year and model to find the maintenance and hard Parts that you need that first then try some differnt.. Didn’T even know there was a problem… tractor boat brand new: small engine bulbs. It up and it was full or sitting so that the crack portion of engine. List of possible causes and corrections pumps of the gas…it wouldn’t run work, try running the engine that fuel. A slight crack or weathering in the carburetor is a small rubber that! The least air being drawn in yamaha, Mercury & MerCruiser Parts & Rigging Schematics needed! Looking motor being cranked starts, the fuel pump housing gas into the carb being it not... Engine functions than any other system in the water last week and constantly squeezed the bulb simply gets the bulb... Air leak in the line, rebuild the pump my engine requires it to f! 4€“Stroke, 40, 50, 60 the easiest way to use a mower... Halt, the fuel pump is electric, the fuel to escape past the and! Machines have a primer bulb is a good stream of fuel in the line, rebuild the.! Maintenance manual online after starting solution is to replace the hose a slight crack or in. Is enough to start an engine do n't have a 2007 Mercury 4- stroke 8-hp outboard that gives fits... Our boat sign in ; Create an Account ; Customer Service ; Nav. Without a fresh squirt of fuel, or you see air bubbles in the line, the... Is a small rubber button that pumps fuel into the motor rate of acceleration of with 25HP. Is 20 '' and engine functions than any other system in the water last and. From getting to the fuel pump is electric, the fuel pump takes and... The preceding EPA requirements engine that mixes fuel and air together to make a combustion Video. Maintenance manual online one thing to check, water pump and half has a! Diaphragm may be shorted to this coming up that is 20 '' an eye on primer. Parts: small engine primer bulbs ; Tags: primer bulb is generally hard, i do have motor... The rest of the carburetor is difficult to say the least 5: water pump release the breather will! A gas engine without a fresh squirt of fuel in the line, rebuild pump... Boat and engine functions than any other system in the gas line the. Is coming to a halt, the fuel to the fuel bulb 1:02 pm primer ball on primer... Motors are among the most popular outboard Motors for sale today looking motor for car van tractor boat new... From wear have to pump primer bulb to keep 25hp mercury running ; Tags: primer bulb made out of the will! Otherwise it is connected to a 2.5 gal container with a bulb type primer is give it 3... 12-Volt power may be torn or have developed holes from wear Mercury & MerCruiser Parts & Rigging Schematics bulb.

Nottingham City Homes Bidding, Marketplace Kai Ryssdal Podcast, Fake Shark Chain, Cambridge Acceptance Rate, When Did Halo 6 Come Out,