Manual operation of the push bulb pushes air into the carburetor and draws fuel from the tank. Now it won't start at all after hours of checking and cleaning the carburetor. Answer Save. The primer bulb is suppose to fill the carburetor with fuel by sucking it through it through the fuel line (the one with the filter on it). I have the same question and my machine is new, never cut a single weed since it shuts off when you pull the trigger. Problem #2: After I purged my fuel line of air, I warmed up my engine and then went to full throttle. Hellllllppp!!! Is there a preferred type of thermostat to use for my HVAC. The main thing to look for when priming the weed eater is that the primer bulb becomes full. It worked for 30 min and stopped. The darn thing still will not prime (no fule in the primer bulb). Who was the man seen in fur storming U.S. Capitol? the short nipple on the bulb is the suction side. yesterday when I pressed the bulb it got only 1/2 full, but it still started. was - $10.07 | 11% OFF. From what you are describing it sounds like you are not getting any fuel into the engine at all. IT has a tiny hole in it, Find it and fix with a good sealant or replace the bulb. As the bulb fills its resistance to squeezing changes, and the firmness of the bulb signals the operator when the primer has done its job and primed the fuel line. Primer bulb is marked tank and carb side. Yep, the primer actually draws fuel up to the carb then sends it back to the tank, start with the simpelest part first! How To Prime Up Fuel When Primer Bulb is Air Locked. 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. Install the new primer bulb. Inspect the clear tube at the output of the primer bulb. You might need a new carb diaphragm and/or complete gasket set or just the carb cleaned. To operate the primer bulb, one squeezes the rubber bulb and releases, repeating until the pumping action lifts fuel from the tank and fills the bulb with fuel. 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. This will indicated that air is begin sucked into the line. Relevance. Pressing the bulb only sends more gas to the carburettor. My Model is the Blue Max 42cc. primer bulb results in the fuel tank being pressurized and a squeek noise, but no fuel getting into the bulb itself. Without this button, the carburettor couldn't draw up enough fuel for the crankcase to get moving fast enough to fire off the necessary spark. 516 sold. When the mower starts again, the primer releases its fuel into the combustion chamber. The primer button, or bulb, on a chainsaw draws fuel from the tank and into the carburettor using suction. Shouldn't workers have a generator if they need power? ? The air in the lines don't increase and move out back to the tank but there is always a large bubble in the primer bulb. 4. When you push it in, it should pump air but then when you release it then as it comes back out it should suck in fuel from the tank so the next time you press it then it is pumping fuel. 10 X Fuel Primer Bulb Bubble Clear Replacement 19mm Lawnmower Strimmer Chainsaw £9.95 New Genuine STIHL Bg86 C Fuel Primer Bulb Cap 4226 121 2700 Leaf Blower Zamma Carb I have a Craftsman Leaf B lower Model 358.794773 that the primer isn't pumping gas. 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. The carburetor is a part of the engine that mixes fuel and air together to make a combustion. Thank you for using Manage My Life. Take a little extra care to wipe dirt and oil away from the recently disassembled carburetor before putting it back together. The number one problem with squeeze bulb priming systems on boats is minute leaks on the suction side of the bulb between the gas tank and the bulb itself. Reactions: Okie , … Like other tools with small gasoline motors, your Craftsman Weedwacker needs help starting -- help … The Primer Bulb Is Stuck in My Craftsman 32cc Weedwacker. Make sure that you check everything including the clamps, the o rings, the lines, etc. 4*Air Purge Pump Primer Bulb For Fuel Tank /Husqvarna 345 346 350 353 850. Now it won't start at all after hours of checking and cleaning the carburetor. You can hear a hiss as you remove the gas cap after priming and the lines blow bubbles in the gas as you prime. Your question was published, help is on its way! Will follow all suggestions. Just caught a mouse on a sticky trap. today, when I press the primer, it doesn't get any gas and it won.t start. Thank you for using Manage My Life. Will follow all suggestions. The air in the lines don't increase and move out back to the tank but there is always a large bubble in the primer bulb. by cleaning passages , new welch plugs, carb. I overhauled the carb. If you need further assistance, please reply to this thread. For the T242, the primer bulb can be pressed into place in the mount plate from which the old bulb … The - Answered by a verified Marine Mechanic ... reason I don't think that is the issue is the anti siphon valve check ball is rattling which indicates suction from the primer bulb. Me Too. Turn off the ignition switch and remove the spark plug, drying off any gas on the plug. How do I dispose of it? I would start by replacing the fuel filter since there's absolutely no way to tell if it's plugged by looking. I will check fuel lines once again for any holes. Thank you for using Manage My Life. From what you are describing it does sound like you have an air leak in the fuel system. You should feel resistance after a few pumps. What is wrong when the control panel on my Kenmore model 41744072300 washer lights up but I can't select or change the cycle settings? Holding the primer bulb vertically is the proper way to use the primer bulb and ensures that if there is fuel close, it will suck it up. When i pump the priming bulb i hear a noise in the tank and it's not moving fuel to the motore with a full tank. The gas from tank to carb. The other line is just to pump the fuel back into the tank. Check this web site and look at the illustrations. Fuses or circuit breakers? A few of these carbs you will need a special tool that cost about $5-$8 to adjust the carb since the adjustment screws will not allow you to use a regular flat head screw driver. Another thing to know about primer bulbs is that if the fuel leaks to far back into the tank. The air bubbles & gas are I observed a continuous stream of bubbles in the fuel line coming out of the primer but there were no air bubbles on the inlet side. Bond LH6799 Mini round point shovel with D handle. Sources: 25th Amendment talk in Trump Cabinet, Lawmakers who voted to contest Electoral College, Trump officials who have quit since the Capitol riot, Dems press forward with plans to remove Trump, After riots in D.C., NBA coach slams 3 GOP senators, Coach fired after calling Stacey Abrams 'Fat Albert', New congresswoman sent kids home prior to riots, Republicans finally condemn Trump assault on democracy, TV host: Rioters would be shackled if they were BLM, $2,000 checks back in play after Dems sweep Georgia. So, basically I'd order the bulb along with the gasket set and replace all at the same time or else you'll just end up having to do one or the other again later. to the primer bulb. This could be due to a crack in the fuel lines, the primer bulb, a missing or damage gasket, etc. Join Yahoo Answers and get 100 points today. I would suggest that you start at the fuel tank and work your way to the carburetor. Still have questions? I disconnected the fuel lines from the carb, and they are clean leading into the tank. kit, air + gas filters, primer bulb & gas lines.I put new gas in tank but same problem!! I have tried changing fuel lines but same result. There is pressure building up at both the cap and at the fuel line that enters the primer bulb, but no fuel is getting into the bulb itself. Get shopping advice from experts, friends and the community! Ask Your Own Boat Question. $5.52. If the carb has a built in primer, the fuel line closest to the primer bulb is your fuel return back to the fuel tank while the other fuel line is your main fuel feed. 5. Tank side is for larger line and runs into tank and fuel filter. Automatic primers capitalize on the inertia of the four-cycle engine, drawing and holding fuel for the next cycle when the mower stops. I pulled the tank and checked the filter and that appears okay as well. 10X 2 Sizes Fuel Pump Carburetor Primer Bulb For Chainsaws Trimmer Brushcutter ... Fuel Filter Line Hose Primer Bulb Kit For Poulan Weed Eater Gas Trimmer 4 Sizes. Some engines utilize a manual fuel primer bulb to enrich the ratio of fuel in the fuel air mixture for initial engine starting. Get more answers from the people in your networks. If the fuel system is working properly, just a few squeezes should be enough to prime the system. Gas already have an air leak in the primer bulb results in tube. 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