Speaking from the gasoline outboard engine industry; most oil filters are placed on the engines, upside down or angled down. I won’t be discussing that here so if your here for diesel oil filters, this won’t help you. This small plastic bulb and attached line can get clogged or kinked. 99 It could be water in fuel but more than likely is the float inside the engine mounted oil tank. The priming bulb is a small rubber button that pumps fuel into the motor when pressed. Posted via Mobile Device . Worked great. 2: the only aftermarket primer bulb I would use is a Sierra (Shields Hose). A blocked outboard fuel line prevents fuel from getting to the motor. Pressing the bulb only sends more gas to the carburettor. The Evinrude E-TEC G2 has a small spin-on fuel water separator with a water-in-fuel sensor mounted on the motor. This helpful YouTube video by Succstrat explains what might be affecting your ability to get going. Make sure the outboard is fully primed with fuel. If that doesn't work then you either have a leak from the ball to the fuel tank or your pickup isn't in the fuel. I don't think the primer bulb itself is what's causing it to die, but may be a symptom of the real problem. The same goes for fuel lines. thing is, a faulty bulb looks *exactly* the same as a working bulb. My Ryobi backpack blower would idle but not run properly at full speed, just misfired a lot. When pushing the primer bulb, the gas just squirts back … It is easy to flood the units. one thing to check would be your primer ball. « Reply #3 on: September 10, 2008, 09:10:35 PM » does it idle good for a long time or will it shut off after a while??? ... the carbs fill with a water/gas /oil mix. Disassembled carb again. Outdoor Gasoline and Electric Powered Equipment and Small Engines - primer bulb doesn't fill - The primer bulb on my Stihl power head (for edger/string trimmer attachments) won't fill… If gas is present in the tube, the system may be flooded with gas already. I can't get the primer bulb to pick gasoline up from the fuel tank. 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. will_beames. Step 2. If not the obvious line issues or leaking bulb, then the next place to look is the one way valves in the section just under the bulb, assuming the bulb is on the carb type anyway. May 28, 2015 #2 A stuck or plugged check valve in the carburetor can cause the bulb to remain down or be slow to return. The primer bulb on a string trimmer draws fuel from the tank to the carburettor to help start the engine. A month ago 1/2 mile from our marina the boat stalled and I was not able to restart it. If the primer bulb squeezes easily and doesn't feel like it's pumping fuel, it's time to determine what is preventing fuel from getting to the motor. But blockages don’t cure themselves. Blower, lawn mower, weed eater, trimmer I checked the fuel primer bulb and it was fairly hard. The purpose of the primer is to put fresh fuel in the fuel lines and remove any air that is in the lines. sometimes the pickup pump will go bad and it will run fine at speed but when its idling the pump dont have enough power to pull fuel from the tank. I have a Walbro carburetor and the primer bulb appears to work, as it is drawing fuel into the bulb but no fuel is going to the carburetor. How to Replace the Primer Bulb on an Outboard Motor With an ... as fuel is sucked out of the tank, no air moves into the tank to fill the space the fuel used to occupy -- the fuel system becomes vacuum-locked. 4 years ago. After close inspection i noticed the fuel line what sucks the petrol in (with the filter on end) had split, so i ordered some new fuel line, new filter (on end of fuel line) and a new primer bulb. Most times there is a air leak in the gas line check the o/ rings on the connection. Took the old fuel line and bulb off, measured the ends on both sides of the primer bulb, cut it to length. Any leak from the tank to the bulb will not allow it to prime. 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. 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. Then from the carburetor to the primer and back to the tank. I am using this primer bulb on my 14 foot aluminum fishing boat. If the fuel pump isn't primed, the motor may turn over without starting. Incorrect use of the priming pump may also cause a boat motor to flood. So, I took it apart, removed the carb etc. 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. If it has a remote tank check the connection on the tank itself for leaks. The newer (mid 1990's and newer) equipment actually has a "Purge" Primer bulb. 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. so, get yourself a new fuel line with a primer bulb. it could be a slight crack or weathering in the bulb or the hose. Consult your outboard owner's manual for the recommended fuel line for your engine.) Very simple process. i would check that first then try some differnt fuel. great … I just replaced the fuel line on a Johnson outboard motor. The carburetor is a part of the engine that mixes fuel and air together to make a combustion. 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 won't pull it all the way into the fuel line. I only use fresh, non-ethanol fuel mix. Use primer bulb to fill filter with fuel. If it is connected this way, I recommend pushing the primer and watching the bubbles. A primer bulb that's lost its suppleness doesn't respond as a new one does. I have cleaned the fuel intake in the tank, replaced the fuel with fresh fuel, and replaced the connection on fuel tank. Do you ever pumpty, pumpty, pumpty that fuel primer bulb and still can’t get your outboard motor going? Engine rough then primer bulb won't fill. The blower (a Poulan, with Walbro model WT875-A) is only 3-years old, so I don't suspect it would need an o/h kit. go ahead and splurge, spend the extra $8 for the yamaha brand name (or BRP or Mercury), the aftermarket primer bulbs don't have the greatest reputation for durability. This is about: ... Continue pumping the primer bulb until you fill the engine with fuel and are able to start the engine up. 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 … You can look at a parts diagram for your product at [www.searspartsdirect.com]. pumped it up and it was good the rest of the day. Perfect fit. 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 … This will help in … Cleaned the carb and when I put it back together the primer bulb would not fill. Any help on how to get the airlock out or what I should try will be appreciated. The fuel should flow from the tank to the carburetor. Hi, I have a Poulan WT 200 leaf blower with a brand new 530071775 carb,new fuel lines and a new fuel filter.I can't get the primer bulb to fill with fuel.I've tried with the carb attached & unattached to the engine block.I took pics of the fuel line configuration before I started so they are re-connected properly. The day after i went to use it again and noticed when i primed it, the bulb would not fill up with fuel, only a little bit and just small bubbles. 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. I primed the carb using an eye dropper and the engine starts and runs fine. Between the primer bulb and the carb there is a plastic part that has the tubing sticking out … I just put a new carburetor on it but it won't prime & start. Squeeze the primer bulb a couple of times to prime the fuel pump. 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. Inspect the clear tube at the output of the primer bulb. Use a primer bulb whose connections are sized to match your fuel lines. If the line or the bulb are damaged the engine won't receive enough gas in the chamber for ignition. U. How to fix a primer bulb that won’t prime and fill with gas, small carburetor, small carb. Reassembled and installed and found the primer bulb won't fill with gas. If you have this system you may or may not have fuel in the bulb. Uncle Knuckle LawnSite Senior Member. It took about 50 squeezes on the bulb to … Turn off the ignition switch and remove the spark plug, drying off any gas on the plug. 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 Primer Bulb Is Stuck in My Craftsman 32cc Weedwacker. A lot of the newer cheaper primer bulbs just won't prime unless you hold it directly up. Like other tools with small gasoline motors, your Craftsman Weedwacker needs help starting -- help … 3: I have never found a difference if the primer bulb is pointed up, down or sideways. In under two minutes, you could learn how to solve the problem for good! (unless, obviously, it's been cut). The older (up to late 1980's/ early 1990's) equipment had actual Primer bulbs exactly as AJP described. As far as the connectors I used the old hose clamp on the fuel tank side and use a new zip tie on the motor side. You push the bulb and fuel squirts into the venturi. I located the bulb at the outboard engine. Re: Gas primer bulb going flat! Most small engines will not start if the carburetor is dry. 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