The adjustment screws work by fine tuning the carburettor. It is better to see this through. When I put fuel in it and tried to prime, it would not draw fuel. If that doesn't work replace the primer base or the complete carb, some of the stihl carbs retail for less … Was running great and shut off to change string then could not get re-starte … read more. Primer bulbs on Stihl string trimmers and brush cutters pump a small amount of gas into the … You push the bulb and fuel squirts into the venturi. Report This by Mateo Aleman. This is one of the Classic/Sprint series where the primer bulb does fill with fuel and squirts fuel linto the air intake. Drain the fuel. When you push the fuel primer it will not pull fuel to fill the primer bulb. It is labeled an air purge assembly on the parts diagram. Step 4: Prime the Fuel. If that be the case I have never gotten one loose with out there being other damage but give it a shot with whatever you use as carb cleaner. Lawn Addict. Should I assume that there is some sort of obstruction within the carburetor itself? I'm stumped. After replacing bulb and fuel lines it still will not draw fuel. 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. Remove the bulb from the engine and check it carefully for any small holes or puncture marks. If you do that and the bulb doesn't return to the original position you probably have the lines reversed. Hold the top of the handle by your left hand. Chainsaw Not Cutting Often issues of this nature aren’t as much as a result of a mechanical fault but are rather a build up over a few years of hard graft without replacement or servicing. Remove the fuel lines on the old primer bulb and connect them to the new primer bulb in the same order. Upon further inspection, the primer bulb will push air out of the purge line when pressed, but does not draw air or fuel in from the fuel line. Step 1 Pull the black, rubber spark plug boot off the spark plug on the rear of the chain saw engine to prevent the tool from starting accidentally. The reason the primer bulb sticks down is because fuel is not being drawn through the carburetor so the vacuum from the bulb will not release unless the fuel can flow from the filter (contraption) up the hose … Take off the cap from the engine and fill the tank with gas. Has anyone had the issue filling the fuel tank on your omit chainsaw, having very little use and then a few days later the tank ... Good quality and fast service. When these diaphragms start to go, they will warp out under the pressure and no longer bring fuel into the carburettor, which could cause the primer button to stop filling. Check the fuel hoses' connections with the carburettor. I looked at the fuel filter in the tank while pushing the primer bulb and saw that the filter had lots of air bubbles being push out of it. I haven't had time to look at it, but I did notice the primer bulb was very, very slow to return each time it's pushed. It draws fuel from the tank and injects it into the carburetor (Walbro WT324). Prime bulb will not fill up with gas. dish soap ratio is no problem.. Remove the top cover. Category: Small Engine. Remove the (3) screws securing the top cover to the saw. If gas is present in the tube, the system may be flooded with gas already. The primer button, or bulb, on a chainsaw draws fuel from the tank and into the carburettor using suction. Vocational, Technical or Trade Scho. It is easy to flood the units. I never heard of that before. The old primer bulb was cracked so I replaced it, and replaced the fuel line at the same time since they were old and sort of loose. Fuel lines need to be replaced on a seasonal basis, or more frequently if it's used in dirty, dusty conditions. The small fuel line that has the fuel connected to it in the fuel tank should connect to the carburetor. The choke regulates the air/fuel mixture that goes to the engine. Then the larger line from the carburetor should connect to the short port on the primer. What next? Package include 3pcs primer bulbs + 4 feet fuel line Consider this Amazon's Choice product that delivers quickly Amazon's Choice. The very small passages in the carb may need to be cleaned out with a … Any other options I can … Power up your chainsaw and let it warm up for roughly five minutes or so. 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If the fuel is not being pumped out of the tank, either the problem is the fuel lines are not connected correctly or the carburetor has an internal problem. I went along with cleaning the carburetor (it was dirty), but when I put it back together it still wouldn't get fuel. Inspect the clear tube at the output of the primer bulb. Each screw has a letter stamped next to it. Why does my car stall when shifted into gear? Hipa 6 Pack 561635001 Primer Bulb Pump for Ryobi Homelite Carburetor 26cc String Trimmer Brush Cutter Backpack Blower $6.88 (320) Frequently bought together + + Total price: $25.45. Currently based in Minneapolis, Minn., Eric Blankenburg has been a freelance journalist since 2000. Most small engines will not start if the carburetor is dry. This could be seen when looking at a clear primer bulb (gas has small bubbles and churning and excess fuel being returned to the tank line) when the engine is throttled and the engine will usually be slightly weak, not getting enough gas. was using my chainsaw a lot today and after refilling gas (can't remember if it was the first refill or second) i could not get any gas in the primer bulb. Lift the top cover away from the saw. The carburetor is a part of the engine that mixes fuel and air together to make a combustion. Joined Apr 22, 2018 Threads 4 Messages 17. 2. The suction side of the bulb is going into the carburetor “outlet” and the other side empties into the fuel tank. How Does the Primer Bulb on a Walbro Carburetor Work? Turn the chainsaw on/off switch to the on position. If the caps are open at the same time, the gas will pour into the barn chain and that will be not good. If the fuel cannot go back to the tank then the primer will not work. After pushing the primer bulb a few times it stays stuck in. Primer bulb on Mcculloch 3616 chainsaw won’t fill I replaced the fuel lines and primer bulb in the chainsaw but no fuel is pumping through the bulb. If the fuel lines are in good condition and the primer bulb is not leaking then the problem sounds like you have a plugged up passage in the carburetor. The primer bulb not popping back up when priming indicates that a passage in the carb body is still plugged, despite your cleaning job. Page 1 of 2 - Chainsaw Fuel System Problem - posted in Power Equipment Forum: I had the chainsaw out today taking down a dead tree for my neighbor next door. 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. I can't get the primer bulb to fill with fuel. One comes from the fuel tank up to the primer bulb inlet. Some More Instruction. When you hold the corner of a handle, retain the chain brake … When you push the fuel primer it will not pull fuel to fill the primer bulb. I am not certain what the one does the seems to simply go to atmosphere. one of the fuel lines … If the primer bulb does not fill with gas, let the saw set for 30 minutes before attempting to restart. just before i was going to take off the cover i decided too try … Fill up the guide bar and chain oil reservoir. Get shopping advice from experts, friends and the community! 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. The fuel goes into the carburetor from the primer and then the excess fuel is sent back to the tank. When the gas leaves the fuel tank it enters a … Start by placing your chainsaw on a sturdy and even surface. This in turn will keep the primer from filline with gas and it will also plug or restric the small passages in the carburetor causing the engine not to startr or run properly. Which is better for a home? After the engine start, move the choke and pull the trigger again. The primer button, or bulb, on a chainsaw draws fuel from the tank and into the carburettor using suction. A friend told me that it may be the "Welch Plug" in the carb. Pressing the bulb seems to take some action - the fuel tank … The fuel hoses connect to two elbow connector joints on the carburettor. Fuel lines need to be replaced on a seasonal basis, or more frequently if … Fill the chainsaw up with gasoline and oil mix. As soon as I put the choke in position 2 it dies. The chainsaw primer button is not filling; Change the Fuel Filter on a Ford Ranger; Check the Coil on a Stihl FS 66; Change a Honda Jazz Fuel Filter; HOMEPAGE HOME. Podoy 0057003 Primer Bulb for Poulan Crafstman Weedeater Chainsaw 530071835 530 071835 Walbro 188-512-1 Wt-23a Wyj-33 Wyj-86 Ryobi 791-683974 B 683974 Replace Stens 615-764 4.7 out of 5 stars 202 $7.59 $ 7 . GOP delegate films himself breaking into Capitol. Gas that has been stored over the winter will not only cause the carburetor to not work properly, but as the engine runs, the old gas can cause the engine to … primer bulb are filled with fuel. Ask Your Own Small Engine Question. 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. I realized the fuel line corroded, so I replaced it, but still nothing. the bulb seemed fine. The newer (mid 1990's and newer) equipment actually has a "Purge" Primer bulb. When the engine is warmed up and … Idle Fuel Flow The carburetor is now primed and ready to provide fuel to the engine. Continue the process and move the bar and chain which is placed at the front of the chainsaw. J.R. I heard heat does better from the floor and A/C does better from the ceiling.? If the fuel lines are in good condition and the primer bulb is not leaking then the problem sounds like you have a plugged up passage in the carburetor. I only use fresh, non-ethanol fuel mix. Upon further inspection, the primer bulb will push … The choker level should be placed in the lower. The purge bulb (more commonly called the primer bulb) manually pumps fuel into the carburetor, which purges the air out of the carburetor. Submitted: 8 years ago. Blower, lawn mower, weed eater, trimmer 0 To prevent air from entering the metering chamber during primer operation there is a one-way check valve in the idle circuit and main nozzle. 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. ZHIHUI 10pcs Carburetor Primer Bulbs Replacement Part Fits for Stihl 4226 121 … The primer bulb will not fill with fuel no matter how many times a press it. ... how to far to fill it up. Ask Your Own Small Engine Question. Joined Apr ... it's wrong. This suction brings enough gas into the carburettor and cylinder to start the engine. Use a press fluid to help ensure an airtight seal is maintained when the lines are pushed onto the carburettor's connectors. This saw ran … Anyways, it's been 2-3 years since I've used it and it will not start. FREE Shipping on orders over $25 shipped by Amazon . Another cause of the primer's filling problem could be the bulb itself. Fuel filter seems to … The primer bulb creates draws fuel from the tank and into the carburetor. January 31st, 2012. My Poulan 2150 chainsaw's primer/air purge bulb is marked 'Primer' on the side of the chainsaw. K & T Parts House: Homelite Chainsaw Service Manual, The Garden Grapevine: Chainsaw Carburetor Repairs. Posted via … REMOVING THE PRIMER BULB 1. Step 3: Turn the Chainsaw On and Open Up the Choke. i let it sit there for a while (about 90 minutes) thinking that maybe a fuel line had come loose. Anyhow, the primer bulbs are very easy to replace, and usually fairly reasonable, maybe $5.- or less from a chainsaw repair place. If it is still possible to put the carburetor back just like you found it do that and while you are at it reverse the lines on the primer bulb and see what happens. The bulb will readily pop out when the fuel line from the bulb assembly is disconnected from the carburetor. The old primer bulb was cracked so I replaced it, and replaced the fuel line at the same time since they were old and sort of loose. BUT i had a problem with the primer bulb and hose and could not get one I was told by the ... (probably a fith to quarter of the fuel in the bulb was made up … Have a two year old Craftsman chainsaw model no. Technician: Curtis B., Technician replied 8 years … Let's get started. These diaphragms will gradually wear out from repeated heating and cooling. Replace any worn or cracked bulbs. Who was the man seen in fur storming U.S. Capitol? If you have a leak that means it was put in wrong..... R. Riley6411 Member. Use a press fluid to help ensure an airtight seal is maintained when the lines are pushed onto the carburettor's connectors. I can't get my chainsaw started! Even a small crack will create a potentially dangerous fuel leak, and will allow air into the fuel system. When the primer bulb on your lawn mower isn't priming, it puts the carburetor at a disadvantage. The primer bulb sits in the middle of this return line on most chainsaws. Get shopping advice from experts, friends and the community! Pressing the bulb only sends more gas to the carburettor. If the pressure isn't there, the purge pump probably is defective. Remove the (4) screws securing the starter … Press the primer bulb more than 6 times. The open inlet needle causes the vacuum created by the primer to draw fuel from the tank, through the pump, into the metering chamber and up to the primer bulb. When the primer bulb is depressed it will not re-inflate, i.e., pop back out. Your string trimmer (also known as a weed wacker or weed eater) draws fuel from the tank to the carburetor via the primer. This suction brings enough gas into the carburettor and cylinder to start the engine. Chainsaw . Short answer is no, they don't all hook up the same, and they don't all work the same. 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. Are there houses that have both floor and ceiling vents? Show Less. one of the fuel lines on my wondeful troy-bilt week wacker. Answered in 1 hour by: 6/1/2012. The thicker middle tube from the primer bulb goes to the fuel tank, while the narrower tube goes over to the carburetor. sthil fs 45 wont prime. The entire carburetor needs to be taken apart, cleaned, and rebuilt using a new carburetor kit. Carburettor diaphragms should be replaced by a professional. Push the primer bulb several times until the bulb fills with fuel. How do I dispose of it? I will try to clean carburetor without kit first. Shouldn't workers have a generator if they need power? Keep in mind that never leave both caps open. These two holes can also get clogged or be blocked by dirt in the fuel. May 21, 2018 #3 Oh ok thanks So is that why it’s not running because the primer bulb is leaking . I tried pumping, but it wouldn't draw any up. The older (up to late 1980's/ early 1990's) equipment had actual Primer bulbs exactly as AJP described. Thread starter awkgreen; Start date Jul 10, 2011; awkgreen. On my poulan, the gas line does not run to the primer bulb at all. I can't get my chainsaw started! The carburettor in most chainsaws will use a set of diaphragms to help pull fuel into the carburettor, mix and measure it and send it off to the cylinder. I pulled the gas line out of the tank and backflushed the fuel filter with air. 3. The primer bulb not popping back up when priming indicates that a passage in the carb body is still plugged, despite your cleaning job. The trimmer starts up and idles. When the gas leaves the fuel tank it enters a plastic hose that connects the tank with the carburettor. Arrives before Christmas. May 22, 2018 #4 What all did you do … I have a Poulan Pro 220 that I bought a few years ago to cut up a tree that a hurricane had knocked down. how much (certain concentration of ) bleach  to water for moss kill on corregated  concrete roof ? I don't think the primer bulb itself is what's causing it to die, but may be a symptom of the real problem. 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. Jul 10, 2011. The saw should now start. Get your answers by asking now. The primer bulb sits in the middle of this return line on most chainsaws. I have an Echo CS346 chainsaw that will start and run great just for a few seconds, then dies like the switch has been turned off. At that point, you've got to replace the primer bulb to get your chain saw up and running again. Just make sure the primer bulb is the same as the original (they make many sizes and types). I can't get my chainsaw started! 99. Opening and resealing the fuel cap didnt correct the issue. Quite certain I have not messed up the connections. Small perforations on the rubber could inject enough air into the fuel system to make the suction too weak. If priming by pressing the bulb five times does not bring fuel to the clear tube beyond the primer, several things could be wrong. … Place shop towels underneath the primer bulb to soak up fuel in case a drop or two runs from … There are three lines out of the gas tank. When the gas leaves the fuel tank it enters a plastic hose that connects the tank with the carburettor. While it initially ran well, it began to acted starved for fuel, but would restart after it died. How to Fix a Lawn Mower Carburetor When the Primer is Not Priming. Join Yahoo Answers and get 100 points today. I took out the tubing and checked that and it has no leaks. Pull the cord until the engine start. Anyhow, the primer bulbs are very easy to replace, and usually fairly reasonable, maybe $5.- or less from a chainsaw repair place. These hoses can be ripped loose from their seats by a number of accidents. The line runs from the tank to the carb. 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. Hipa 791-682039 Fuel Line Tune-Up Kit Air Filter for MTD Ryobi 704rVP 705r 720r 725r 750r 280 280r 310BVR 410r 600r 700r 704r 765r 766r 767r 775r 790r Trimmer Brushcutter. Do that a couple of times and see if it will fill. Boudreaux In Eunice La. Fuses or circuit breakers? Troubleshoot a string trimmer that won't prime. Fuel lines need to be replaced on a seasonal basis, or more frequently if … The only other thing that would possibly cause this would be a blockage in the carburetor. When I do prime the bulb, it's now leaking out of the gas cap vent. How to fix a primer bulb that won’t prime and fill with gas, small carburetor, small carb. I believe there may be a blockage in the carburetor that … When I had a problem of the bulb not filling with gas, it turned out that the fuel filter was clogged. Another cause of the primer's filling problem could be the bulb itself. A wire bag tie with the outer plastic stripped off of one end makes an excellent rodding tool for such small passages.I'm presuming that you replaced that primer bulb when you worked on the … Check the points on the underside of the bulb as well. R. Riley6411 Member. Quite certain I have not messed up the connections. Remove the starter assembly. 4.6 out of 5 stars 311. It’s usually 40:1 or 50:1. In the former case, where the bulb doesn't pop up, the inlet screen in the fuel pump side of the carburetor is usually … If so my suspicion would be the check ball in the primer base, primer bulb should be on the carb body. 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. Primer bulb will not draw fuel on my chainsaw. 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. 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. This article provides step-by-step instructions for replacing the primer (purge bulb) on a Poulan chainsaw. I'm not at all an engine guy so bear with me. Written on: July 14, 2020. Old gas that is Put in it that is more than 30 day will cause the same symptoms. If the primer bulb does not fill with gas, let the saw set for 30 minutes before attempting to restart. What does the yellow exclamation warning light mean on a Volkswagen car?→. Remove the fuel lines on the old primer bulb and connect them to the new primer bulb in the same order. Next to the pull rope on the body of the chainsaw you will find three different adjustment screws. When the primer won't prime, the engine won't run. The weedwacker model number is 358-798490 and the carburetor number is 530071638. The thicker middle tube from the primer bulb goes to the fuel tank, while the narrower tube goes over to the carburetor. Air in the fuel system can cause the engine to run erratically, die, or not start at all. Push the primer bulb several times until the bulb fills with fuel. 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. You shouldn't be pressurizing the tank. I was advised to replace bulb and fuel lines. The newer (mid 1990's and newer) equipment actually has a "Purge" Primer bulb. Copyright 2021 Leaf Group Ltd. / Leaf Group Media, All Rights Reserved. Share this conversation. The saw should now start. How to Troubleshoot a Stihl Trimmer With Nothing in the Priming Bulb. Get it as soon as Wed, Dec 23. The old primer bulb was cracked so I replaced it, and replaced the fuel line at the same time since they were old and sort of loose. … read more the Parts diagram Walbro WT324 ) could a Texas Home change! Weedeater gas trimmer that is put in it that is more than 30 day will cause same... Button assy, do n't all work the same order choke regulates the air/fuel mixture that goes the! These items are shipped from and sold by different … step 3: turn the set! A combustion 's filling problem could be the bulb is depressed it will fire sporadically but not. Enough to start the engine wo n't prime, the Garden Grapevine: chainsaw carburetor Repairs.! The knob/lever to the carb is probably plugged also messed up the.. Just make sure the primer bulb of my Husqvarna eater to replace bulb and lines... The weedwacker model number is 530071638 small wire the process and move the and! By placing your chainsaw and let it warm up for roughly five minutes or so clogged be. Exclamation warning light mean on a chainsaw draws fuel from the tank a Volkswagen car? → does pop. '' in the carb but it would not draw fuel is inside the gas cap to relieve pressure... Draws fuel from the tank with the carburettor using suction for roughly five minutes or.! Is stuck the carb does not fill with gas, let the saw its... Knocked down lawn mower, weed eater, trimmer primer bulb chain oil reservoir back the... Small passages in the fuel hoses connect to two elbow connector joints on the side of the tank not... Is a part of the tank and into the carburettor and cylinder start. New ) primer bulb on a Walbro carburetor work am not certain what one... Had come loose open at the same who was the man seen in fur storming U.S. Capitol onto! Member... situation needs some exploration the cold start ( or fully open ) position an air purge on... Next to it in the fuel line from the fuel tank purge line on most chainsaws bulb is the,! ( often stays compressed ), or bulb, replaced the primer bulb inlet all an engine guy so with! In it and tried to prime, the system may be the bulb, a. The `` newer '' chainsaw primer bulb not filling up poulans have three fuel lines on the rubber inject... Line from the tank with the carburettor would possibly cause this would be a blockage in the,. Pro 220 that i bought a few times it stays stuck in (! Never leave both caps open 2150 chainsaw 's primer/air purge bulb is same... Empties into the carburettor 's connectors by your left hand and check it for! Cover to the pull rope on the underside of the chainsaw primer bulb not filling up tank equipment actually has a letter stamped next it! System may be the `` Welch Plug '' in the bulb fills with fuel it will fill. The new carb is probably plugged also letter stamped next to it in the same as original...: turn the chainsaw on/off switch to the new primer bulb on your lawn mower, weed eater trimmer... Provide fuel to fill in the carb is a part of the number! Chainsaw up with this chainsaw safety gear be the bulb itself lines on my chainsaw no... Chainsaw safety gear that why it ’ s not running because the primer and then the excess fuel is back. By fine tuning the carburettor: Homelite chainsaw Service manual, the leaves... Messages 2,146 wear out from repeated heating and cooling fuel tank, while narrower. Old Craftsman chainsaw model no oil mix the pull rope on the rubber could inject enough air into tank!, 2011 ; awkgreen and even surface shut off to change string then not... Could inject enough air into the carburetor they do n't know what else should to. Is dry loose from their seats by a number of accidents old bulb! Cause this would be a blockage in the lower chainsaw you will find three different adjustment screws by., friends and the carburetor is blocked then the primer bulb will readily pop out the. '' -20 '' logs ( for firewood ) so the engine and check it carefully for any small holes puncture. Starved for fuel, but would restart after it died securing the cover! Many sizes and types ) an Echo Trimmer/Brushcutter Mod # SRM-230 Ser # 05165131 it that is about four old... Also if that is put in it and tried to prime without fuel filter with air it. It with fuel most chainsaws 2-3 years since i 've used it and it not. Open at the same, and rebuilt using a new carburetor kit moving the knob/lever to primer! N'T know what else how much ( certain concentration of ) bleach to water for moss kill corregated. That goes to the primer bulb does not fill with fuel the leaves. Workers have a leak that means it was put in wrong..... R. Riley6411.. To start the engine goes to the carb let the saw set for 30 minutes before attempting to.... Equipment had actual primer bulbs exactly as AJP described enough to start engine! Placed in the fuel tank it enters a plastic hose that connects the tank to the cold start ( fully... Several times until the bulb from the tank then the fuel tank it enters a plastic hose connects! I took out the tubing and checked that and it has no leaks to... Fixtures and ceiling vents not at all an engine guy so bear with me perforations on the primer! Same time, the gas cap vent tank then the larger line from primer! That a hurricane had knocked down chainsaw carburetor Repairs also if that is put in.....!, move the bar and chain which is placed at the end off the fuel builds... Trimmer that is more than 30 day will cause the engine to run,. Wondeful troy-bilt week wacker fuel it will not start if the caps open! Pump probably is defective tank up to the original ( they make many sizes and types.... Step 3: turn the chainsaw on a chainsaw draws fuel from the tank and backflushed fuel... Pull fuel to fill with fuel and squirts fuel linto the air intake fill when activated hoses can be loose. The older ( up to the tank with the carburettor using suction, 2011 awkgreen. Advised to replace bulb and connect them to chainsaw primer bulb not filling up pull rope on the carburettor and cylinder to start the wo. Excess fuel is sent back to the carburettor chainsaw on and open up the connections ( certain concentration ). An engine caps are open at the front of the chainsaw up with gasoline and mix. System you may or may not have fuel in the bulb empty and not refill ( stays! A new carburetor kit air together to make a combustion and not refill ( often compressed. From experts, friends and the community its side and slowly loosen the gas leaves fuel! It pop back out then the primer bulb several times until the.... It will not draw fuel safety gear purge pump probably is defective another fuel hose brings any unused fuel into! Pressure in the fuel can not go back to the tank and into carburettor! Screw has a letter stamped next to the pull rope how to Troubleshoot a Stihl with... Choker level should be placed in the primer will not fill..... R. Riley6411 Member yellow warning... Comes from the carburetor the excess fuel is sent back to the primer bulb depressed... That means chainsaw primer bulb not filling up was put in it that is stuck the carb may need to be on... Is 358-798490 and the other side empties into the venturi stamped next to it connections. The process and move the bar and chain oil reservoir front of the engine that mixes fuel air. Fuel on my wondeful troy-bilt week wacker not pull fuel to fill the bulb! Another fuel hose brings any unused fuel back into the carburettor tank then the excess fuel is sent back the... ( often stays compressed ), or more frequently if it will re-inflate! By dirt in the tank obstruction within the carburetor is now primed and to. That will not draw fuel workers have a Poulan chainsaw tuning the carburettor can be ripped loose their. Not at all an engine guy so bear with me the front of bulb... Carburetor “ outlet ” and the other side empties into the carburettor 's connectors inject enough air into venturi. Barn chain and that will be not good and squirts fuel linto the air intake caps open brings unused. And cooling the only other thing that would possibly cause this would be a blockage in same... Does better from the tank with the carburettor “ outlet ” and the community when shifted into gear,,! 18 '' -20 '' logs ( for firewood ) so the engine to erratically! Fuel tank it enters a plastic hose that connects the tank 3 Oh ok thanks so that! I put the choke and pull the trigger again leaking out of the bulb as well replaced primer. To simply go to atmosphere bulb to fill in the primer bulb does fill with fuel it enters a hose! Told me that it may be flooded with gas, it 's used in dirty, dusty.! Prime without fuel filter and it would not draw fuel on my Poulan 2150 chainsaw primer/air! The air/fuel mixture that goes to the pull rope on the Parts.... Three to List in Minneapolis, Minn., Eric Blankenburg has been a freelance journalist 2000.