After the bulb is removed, remove the clip where the bulb rested and clean out the housing. Kits may include both the bulb and a short fuel line. Use compressed air to blow out all the fuel and air passages. Then remove the primer bulb from the base. Indeed, for those who've tried and failed to find the right man offline, footing can provide. The bulbs on most chainsaws are purge bulbs which mean they circulate the fuel through the carb but don't actually prime the engine. Instead of struggling to start the engine without priming and putting undue stress on the carburetor, assess the situation to see what the problem is and fix it yourself. If those enter the carburetor, there's a high chance that they might do great damage to the inside mechanism of the weedeater. The bulb is in fact a purge bulb rather than a primer. Most what I would call, high end, saws do not have primer/purge bulbs. It is pressed and released to create a vacuum that transports fresh fuel towards the intake fuel line and starts combustion or priming. Only 20 left in stock - order soon. The first thing I would check is the fuel line, they are prone to cracking, once that happens it will start sucking air and not get enough gas. Pressing the primer a few times before starting will deliver the fuel. If none of these things work, you may need to replace the primer bulb. If you remove the primer bulb, youll see a reddish rubber disk under it. The next step the workshop suggested was to fit a new carb, but to be honest . Powered by Invision Community. Put the bulb and retainer back to the engine. Was just a stub. Sign up for a new account in our community. Move to the next step! My 044's up through my 880 do not. For air to be getting in there has to be an air leak in the pickup hose or the carb itself. We have the Primer Bulbs you need, with fast shipping and great prices! Featured: 8 Items Sort by Result's per page More Info . (Remove the primer bulb first, if its clipped, unclip it. If that helps the problem, you will know that the problem was the fault of the bulb. Still won't start. However, the primer bulb is not an inline part of the fuel system and is only used to fill the carburetor. My name is Chris Ross. I'm thinking of elimina. If you put your finger over the suction side and press the primer, it should not return to the original position until you let your finger off and it can suck air through. Hey everyone!This video shows a step by step \"how to\" fix a gas string trimmer purge (primer) bulb that won't fill up with fuel.This fix will work on your weed whacker, gas trimmer, whipper snipper, string line trimmer whatever you want to call it!!! This is a usual scenario in 2-cycle engines. After assembling, reconnect the throttle cable to the carburetor. http://www.lawnsite.com/showthread.php?t=144040. Usually, low-end chainsaws with smaller engines have primer bulbs installed to aid the cold-starting of the engine. For a better experience, please enable JavaScript in your browser before proceeding. not sure if this is dependent on the manufacturer. Step 3: Check for Bad Fuel. Are you sure that all your lines and connections are fine? The fuel line with the filter should be on the suction side of the bulb since it draws gas from the tank. But we sell a fuel tank full of them. Clogging of the air filter/fuel line, untidy carburetor and damaged spark plug, etc. If you dont happen to have any experience fixing things such as these, dont worry about it. After cleaning, keep the chainsaw in its normal position, and start putting in the new fuel lines.Put the one to be placed in the right hole first, make insertion steeper, and keep going as far as possible.Now, take bent long nose pliers to pull at least half-inch of the fuel line into the tank. I don't think that is it as even with the cover removed I am getting a lot of air in the fuel lines when pumping the primer bulb. Check valves are non-serviceable and replacement of the valve body is the only fix. Then, spray a generous amount of cleaner to the carb. I have just replaced the primer bulb and the area around the bulb is leaking and the bulb is not filling while the mower runs. Login; My Account; . Just like a living tree, it'll always be a work in progress. Fast & Free shipping on many items! I really like this forum (most of the time) because of the way everyone (well most everyone) tries to help each other find solutions. Should have read "powder fine" instead of "power"!! Discount Exclusive Brands 3x Carburetor Adjustment Tool Screwdriver Fit 2 Cycle Poulan Husqvarna Craftsman save money with deals Lowest Prices career-top.co.jp, US $12.7 Craftsman double D tool and splined tool Toro and anything else that utilizes the splined adjustment screws Notice: It won't fit WALBRO carburetors which may need a 22-teeth . As a rule, it's a good idea to replace the primer bulb and the fuel lines at the same time when you have the primer bulb assembly dismantled. But for bigger engines, hoses are also secured with clamps. there is a fuel pump in the carb operated by pulses from the crank case, the diaphragm in it can can go bad also. Once youre done, detach the 2 fuel lines at the rear side of the primer bulb. 1995-2023 MH Sub I, LLC dba Internet Brands. 1. Luckily, this is a fine example of a job you can easily get done from the comfort of your own home. AU $31.59 postage. Make the tank dry and check there is no fuel inside and unscrew the top cover of the chainsaw. Put back the assembled fuel lines with the primer bulb to the engine holder. Thanks to all who had suggestions!! The problem is most likely due to the fact that the intake line has sprung a leak. Do not break the bulb or puncture the rubber! Seemed like the sound was coming from the engine generally - like with the intake screen filter is. You can do your woodwork all at home without much headache. If you've pressed the primer less than 10 times, fully press and then release the primer for . The primer can only pump liquid not the pressurized fuel vapor. A primer bulb connected to the carburetor through a port or hose pulls fuel into the device by creating a suction, also referred to as purging. Is there a checklist or steps to starting up chainsaws or weed eaters for the first time in a long time. 1. Sounds more like an intermittent nozzle check valve failure or the purger bulb itself, or even a loose Welch plug. should there be a vent hole? Posted September 5, 2013. If the primer bulb doesnt go back to its original state, your lines are probably switched. Typically, its placed in grooved parts to avoid any leak of gas or fluids. But sometimes, the other reasons are faulty check valves and ring seals. So replace your old one that connects the primer and the carburetor. If so, it might be that they got mixed up. Now go to the primer bulb side and remove the cover plate and bulb. Removing purge/primer bulb altogether. A forum community dedicated to lawn care and landscaping professionals and enthusiasts. It's easy! There might be small rubber seats at the bottom. (One quick info: The 4-stroke engines are considered eco-friendlier and more fuel-efficient than 2-stroke ones.). Put some gas in the fuel tank. This bar has a grease point at the sprocket. What if a Lawn Mower Primer Bulb Doesn't Fill? DoItYourself.com, founded in 1995, is the leading independent Now, some of them may have a 2-cycle or 4-cycle engine. A plugged fuel filter can do the same. Fortunately, fuel lines typically slip easily onto small, protruding tubes and are held in place simply from their tight fit. The overheating, Read More How to fix vapor lock in a chainsawContinue, The standard compression reading required for most 2-cycle chainsaw is around 100-110 psi to start. Dirt and other fuel impurities may clog these hoses so an insufficient amount of fuel can pass through the hoses, causing the primer button not to fill. The trouble is that if it is left in this condition, it can have all sorts of knock-on effects. (The cleaner and dirt might get into your eyes while brushing the parts.). There will be two fuel lines. Now, if you have a float-type carburetor, you need to remove the rubber needle seat first. This eliminates the possibility of vapour lock preventing its function. Have read more. The Carburetor Is Not Working. You may freely link A chainsaw Battery blinking red is one of the most frustrating things a woodcutter can, Read More How To Fix Chainsaw Battery Charger Blinking Red?Continue, Chainsaw engines face the vapor lock issue, and the tool is difficult to start and work. Husqvarna 350 chainsaw easy diy compression test and fuel leak fix. Follow these steps for problem identification: If the fuel tank is out of gas, fill it up before proceeding further. Fill the tank with the right oil mixture. Move the choke in the . Soleil 15" .325 1.5mm 64 Drive Link Guide bar for Husqvarna: 158SLBK095 Being in the cutting services for more than 10 years, I know a thing or two about chainsaw. I don't condone parts replacement for the sake of parts replacement. The hoses or the carburetor may be clogged as well. Then take note of the bulbs direction of flow. There are many kinds available in the market. So why wait for someone else to fix your chainsaw when you can do it? The carburetor in most chainsaws will use a set of diaphragms to help pull fuel into the carburetor, mix and measure it and send it off to the cylinder. Its a common mistake and it can be resolved easily by simply switching the lines. Remove the top of the chainsaw, and pour 3-4 drops of 2-cycle fuel into the carburetor.If it runs, that means the compression is working fine. But if its the latter, it needs to be changed. Easy steps on how to clean your carburetor. As well as heat expansion. And this mismatch can also cause leakage. On occasion, the only thing to do to put things right is to simply press down the bulb so that it can do its job. Take the second line, cut it to a suitable length and attach it to the longer port of the primer bulb. And these could become loose over time. Been there,done that.I have spare fuel line & a spare(used) carb connected to a can of gas.I've been swapping the new & used carbs out on spare fuel line & the one connected to the leaf blower.Both carbs will not draw fuel.That was the reason I bought a replacement. Probably a clogged breather hole or stiff breather in the cap. Reduced price. Then replace it with a new one if its already defective. This little saw has an interesting history--bought it off CL for the very expensive price of $15 from a guy who flips houses. Are american idol winners still dating - Rich woman looking for older woman & younger man. Re: Primer ball won't get hard. Primer bulbs create a suction when they are pressed. (From the rubber needle seat, float, fuel bowl, etc.). Replace any worn or cracked bulbs. Sometimes, pressing the bulb will cause it to leak when it becomes overfilled with fuel. Over time the primer will lose its . I cannot see any damage to the fuel lines at all and there is no leak as far as I can see. Note: When replacing your lines, do the previous test that I discussed earlier. My 372 and 395 do not either. Use a press fluid to help ensure an airtight seal is maintained when the lines are pushed onto the carburetor's connectors. General information - What are the proper cold start procedures for my two stroke equipment. Step 3. Links to products I have in my tool bag.Compression tester. can cause a chainsaw to bog down when cutting. Put the last fuel line, from the right side of the carburetor to the shorter port of the primer bulb at the back. Your primer bulb wont be filled with gas because it might be damaged. I have a Briggs and Stratton 3.5 hp 450 series engine on an old grey push mower. on the part of the line that leads to the tank itself. After that, the other end of the intake line has to be attached to the carburettor. how does vapor lock prevent the bulb from priming? FREE delivery Tue, Feb 28 on $25 of items shipped by Amazon. I just don't know where the air is coming from as the fuel filter is completely submerged in the fuel tank and there doesn't appear to be any damage to the fuel lines. 46 sold. Now, if you already have a new primer bulb kit, heres how you can change it. Usually a gasket or diaphragm gets damaged during carburetor dis-assembly so have a kit ready to go if you open the carburetor. been using my old Craftsman 42cc / 18" (~2003 model) a lot the past few days. Chainsaw not getting gas is one of the most common problems chainsaw owners face. You need to be a member in order to leave a comment. So why wait for someone else to fix your chainsaw when you can do your woodwork all at without... Gas from the tank itself any leak of gas, fill it up before proceeding or to. Or 4-cycle engine to bog down when cutting coming from the right man offline, footing can.... The rear side of the intake screen filter is dont worry about it for! 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