Fifteen minutes later, same thing. 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. That is why it feels soft when you squeeze it after the motor is operating. 99. We have changed the filter on the fuel sperator. While the engine is runnning sometimes the primer bulb goes soft and engine sputters off. This hose feeds from the gas tank to the engine carburetor. it could be a slight crack or weathering in the bulb or the hose. Portable boat gas tanks, outboard fuel tanks and accessories let you enjoy the most of your time on … 5/16″ fuel line can be used in up to a 115 HP outboard engine. The primer bulb on *any* brand of outboard motor contains two one way valves. Sunnyglade 6FT Fuel Line Assembly 3/8" 5/16" Hose Line Marine Outboard Boat Motor RVs Fuel Assembly with Primer Bulb Steel Hose Clamps. 3: I have never found a difference if the primer bulb is pointed up, down or sideways. These additives are inexpensive ways to take care of your outboard’s fuel system over the life of the motor. 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. (318)347-7380 ... Gas primer bulb keeps going flat if motor doesn't run. MarineEngine.com 184 Jones Drive Brandon, VT 05733 USA (800) 209-9624 (802) 247-4700 (802) 419-3055 Fax 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. But blockages don’t cure themselves. 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. 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. Fixed it the same way. Get it as soon as Tue, Jan 12. Primer ball in the fuel line seems to be hold 50 HP Mercury 2-stroke losing power at wide open throttle Things that have been suggested from bar stool Merc techs: fuel filter, fuel pump, fuel line/primer … 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. Dealer checked the primer bulb and it wouldn't get firm, they found that in my 2001 OX66 that I had two of the three fuel pumps with cracked diaphrams and that's why she would shut down. A blocked outboard fuel line prevents fuel from getting to the motor. What Size Fuel Line To Use For An Outboard, 5/16″ or 3/8″? The primer bulb or priming bubble for a Weed Eater -- a brand-name string trimmer -- functions in the same way as a priming bulb on any trimmer model. Press into primer cavity lining up locking tabs with locking slot in cavity. I shook the bulb when it was off the hose and I don't hear any ball inside of it, but just passing on what I was told. I love the boat and just took it back to the dealer for the 20 hr service. 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. 2: the only aftermarket primer bulb I would use is a Sierra (Shields Hose). 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. While boating yesterday the RPMs slowly wound down to zero and stalled. The primer bulb on the 1995 Mercury outboard was replaced last year with the standard Mercury primer bulb. Just as a precaution, I also keep an extra Yamaha Marine Fuel Water Separating Filter and filter wrench and an extra Yamaha primer bulb on my boat at all times in case I … If there is a restriction or a kinked fuel line between the gas tank pickup tube and the primer bulb, then the bulb may flatten out due to the excessive vacuum that builds up. SIM Yamaha carries Yamaha OEM discounted engine parts and Yamaha maintenance parts and accessories for Yamaha outboard motors. A primer bulb that's lost its suppleness doesn't respond as a new one does. When launching the boat the next morning, the bulb is always soft. Now, there is a brand new water seperator filter installed, brand new filter on the 2000 90hp carbed engine and I got a brand new mercury primer bulb thinking this would fix the problem. Is it normal to have to pump the bulb every time you turn the engine off for longer than 20 minutes ? It is located just behind the starting handle on Weed Eaters, and according to the manufacturer, you should press it 10 times when cold-starting the trimmer. Outboard Motors > Topic: Gas primer bulb going flat! A small engine primer is a bulb of plastic with a hose running through it. The bulb will not get firm and the filter doesn't completely fill. 5/16'' 8mm Fuel Gas Line Hose Primer Bulb Pump For Yamaha Outboard Marine Boat. Insert primer bulb into retainer and moisten inside diameter of primer bulb. Consult your outboard owner's manual for the recommended fuel line for your engine.) The Larand Marine Primer Bulb is the highest quality primer bulb on the market. i would check that first then try some differnt fuel. Any help on how to get the airlock out or what I should try will be appreciated. The carburetor is a part of the engine that mixes fuel and air together to make a combustion. $25.99 $ 25. one thing to check would be your primer ball. Installation of the primer bulb can be made easier using our Primer Bulb Installation Tool part number 19462. Most times there is a air leak in the gas line check the o/ rings on the connection. 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. When you squeeze the bulb, the inlet valve closes and the outlet valve opens forcing the gas that's in the bulb to be pushed towards the engine (there's oil tank has small primer bulb, use after hose disconnected to get oil to vro pump. 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). The primer bulb creates the initial flow of fuel between the inboard, built-in fuel tank and the carburetor, in low-pressure, carbureted outboard motors, or between the fuel tank and the vapor separation tank -- and the electric fuel pump -- on electronically fuel-injected motors. SIM Yamaha is a USA Yamaha outboard motor and outboard motor parts dealer. Most small engines will not start if the carburetor is dry. I replace the entire fuel line with an Atwood line with primer bulb and installed an Atwood inline fuel filter just after the tank. We have changed fuel lines. the 2 wires are for float level, should be connections by solenoid, they may have black rubber boots covering them. OK WOT she starves for fuel looses power bulb goes soft/flat. This helpful YouTube video by Succstrat explains what might be affecting your ability to get going. The primer bulb is only a " manual fuel pump " ----It is used to fill the carburetors.-----That saves the battery by not having to crank for a longer time waiting for the pump on the motor to do this.----Or it saves one from getting " popeye arms " on a manual start motor.-----Put the bulb … Usually the night before I go fishing, I pump the primer bulb up while preparing the boat. Use a primer bulb whose connections are sized to match your fuel lines. 4.0 out of 5 stars 88. ? We have blown out the pickup. In under two minutes, you could learn how to solve the problem for good! The same goes for fuel lines. Press until both tabs re-seated in locking slots. ADD SPACE Laurie Cork Ph. To start the engine, the user presses or squeezes the primer the correct number of times and engages the starter. I'm using the Quicksilver bulb from Mercury. We provide fast shipping and inexpensive shipping. Customer service is available by phone, live chat, and email. TIHOOD Fuel Line Assembly, 5/16" Hose Line Marine Outboard Boat Motor RVs Fuel Assembly with Primer Bulb Steel Hose Clamps 6FT (5/16"-Rubber) 4.1 out of 5 stars 222 $13.98 On many small engines, this involves pulling the starter rope, although some small engines have an electric starter. On outboard motors, the primer bulb is in the fuel line, between the tank and engine. We have changed to a top quality primer bulb. I have not experienced a "soft" bulb all during the winter months when I've been out. The primer bulb on my boat goes flat. Still … It fits easily in your hand, and pumps fuel quickly. pumped it up and it was good the rest of the day. I checked and found that the fuel line bulb was empty, so I pumped it up and everything started back up. The engine starts is hard to start has no hole shot and sometimes stumbles. Anything above that has to be a 3/8″ fuel line. It’s simple, practical, and does the job you need it to. I have a 2004 Odyssey Pontoon boat with a large steel gas tank in back, feeding a Johnson 90 HP outboard. I have a 2000 90hp Honda 4 Stroke engine Just had my boat engine serviced and it's running very smoothly now. FREE Shipping by Amazon. When the bulb goes flat just crack open the gas cap, if the bulb inflates then you have a blocked fuel tank vent line. Here is a more in-depth break down of the differences in the hoses and the biggest reasons why it is important to have the right ones installed! Scepter marine products fuel you from the shore to the lake. I replaced the bulb and it will not get hard. When the primer bulb is squeezed, the pressure created closes the inlet valve and opens the outlet valve, allowing fuel in the bulb … The carburetor is what receives the gas before it goes into the engine; it's the last place the gas goes before it enters the engine itself. 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. The primer bulb that was on the boat did the same thing. So my problem is from the bulb down stream I have checked gas tank vent OK intake line ok, anti siphon OK Put in new primer bulb arrow points towards the engine and bulb is vertical, new fuel water seperator fuel looked good. SIM Yamaha also sells Yamaha outboards at discounted prices. The question I have is when running (about 3500 rpm) my buddy notice the gas primer bulb … In turn, the primer bulb is no longer hard but still holds it shape under the vacuum. We have run a test by bypassing the fuel seperator. Do you ever pumpty, pumpty, pumpty that fuel primer bulb and still can’t get your outboard motor going? I purchased a 2012 Sea Hunt Ultra 211 with a yamaha 150 fuel injected 4 stroke this March and took delivery at the end of May. 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