No, it won't work depending on the engine design. Most small engines will not start if the carburetor is dry. 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. How do I dispose of it? Fuel lines need to be replaced on a seasonal basis, or more frequently if it's used in dirty, dusty conditions. Won't start. So I guestimated the connections. You must push the primer bulb 4 to 6 times to send the fuel into the carburetor, which feeds air and fuel to the engine. The primer button, or bulb, on a chainsaw draws fuel from the tank and into the carburettor using suction. Answer Save. Here are the steps you can follow. Hipa 4 Pack 12318139130 Primer Bulb for Echo CS400 CS310 CS300 CS301 CS305 CS306 CS340 CS341 CS345 CS346 CS352 CS370 CS3400 CS3450 CS450 Chainsaw PB770H PB770T SRM400U SRM410U Purge Bulb Fuel Line 4.7 out of 5 stars 222. Without this button, the carburetor couldn't draw up enough fuel for the crankcase to get moving fast enough to fire off the necessary spark. I have a Old Sears chain saw, 2 strike, no primer bulb. If you install one that looks the same your saw will not start or if it does will not run right. Easy Starting the Poulan Chainsaw: Steps. Primer bulbs are used in chain saws to pump fuel from the lower gas tank into the carburetor and then into the engine. Try to start the chainsaw after priming the carburetor. This video provides step-by-step repair instructions for replacing the primer bulb on an Echo chainsaw. You can replace the fuel lines and the primer bulb yourself. Without going into details the primer bulb forces fuel to the carb jets and not the engine directly. In this case, one more fuel line will need to run from the bulb to the metering inlet on the carburetor. 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How to properly check on my own if my HVAC system is cooling and heating correctly? The rebooting instructions in Step 2 should improve this condition. Also replace the tube that is broken. 2-Pack 14" Semi Chisel Saw Chain for McCulloch MAC Chainsaws - (14 .I have a Mac chainsaw. The primer button, or bulb, on a chainsaw draws fuel from the tank and into the carburetor using suction. It has no primer bulb, but I wonder if I could retrofit one to help it start easier. When the gas leaves the fuel tank it enters a plastic hose that connects the tank with the carburetor. Currently based in Minneapolis, Minn., Eric Blankenburg has been a freelance journalist since 2000. $8.58. Without the bulb your carb will be flooded on a permanent basis. You shouldn't be pressurizing the tank. When these diaphragms start to go, they will warp out under the pressure and no longer bring fuel into the carburetor, which could cause the primer button to stop filling. The Process To Start A Lawn Mower Without A Primer Bulb: We know that a primer bulb transmits gas in the carburetor bowl to turn the mower on. Customer images. HIPA Primer Bulb Pump 188-512 for Poulan P4018AV-BH P4018WM P4018WT P4018WTL PP3516 Pro PP3516AVX PP3816 PP3816AV PP4018 Pro PP4018 Pro PP4218 PP4218AV PP4218AVHD Gas Saw Do I need to get one? How To Start A Gas Chainsaw Without STRUGGLING (1-2 Pulls) The first thing to do is to know the mechanics of a chainsaw and how to start it. A primer bulb … I have 1950 poulan chainsaw it is missing a primer bulb. Without the bulb your carb will be flooded on a permanent basis. Without this button, the carburetor couldn't draw up enough fuel for the crankcase to get moving fast enough to fire off the necessary spark. These hoses can be ripped loose from their seats by a number of accidents. 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. Some chainsaws use a primer bulb to help suck gas into a cold carburetor. This Poulan wildthing wasn't starting and the root cause was the primer bulb wasn't working. Another suggestion from loggers is to pull the engine's cord through 8 times with all systems off. Also on of the tubes are broken. Took the saw to the repair shop and had them replace all the fuel lines and install a new primer bulb, saw still runs great! All the fuel lines fell apart, including the bulb from sitting. Hi, my chainsaw will not start. MissIng chainsaw primer bulb? The newer models of a gas-powered chainsaw have an air purge bulb instead. The primer bulb is otherwise known as the fuel pump. Customer questions & answers. One is the supply, with the filter on the end and the other is the return. 8. Carburetor diaphragms should be replaced by a professional. If your Poulan Chainsaw has a primer bulb. Also, while using it you may see Poulan chainsaw won ‘t start when hot, so, wait for a little in between the uses of the chainsaw. i connected according to inclosed instructions.but i didnt check to see if that was actually the proper way. You will need the make and model of the carburetor to get the right primer bulb. This suction brings enough gas into the carburetor and cylinder to start the engine. 5 Answers. Yes ,you need a primer bulb. 5. Sounds like the lines are wrong. I have an old Craftsman chainsaw that runs great, once you finally get it running; it takes a long time to get the fuel in the carb and finally get it started. !. See if it has an on/off switch. It is labeled an air purge assembly on the parts diagram. Can a water leak increase my electricity bill? These two holes can also get clogged or be blocked by dirt in the fuel. The air in the carburetor is removed and fuel gets in. I went through the same ordeal several years ago and know this for a fact. Some models of Craftsman chainsaws have a separate primer bulb. Lube it a bit with oil and it should slide throgh the hole. My Poulan 2150 chainsaw's primer/air purge bulb is marked 'Primer' on the side of the chainsaw. Another cause of the primer's filling problem could be the bulb itself. This video illustrates the proper ways to start a STIHL chainsaw, as well as which methods to avoid (such as drop starting) and why. It hadn’t been used for a season and on inspection had brittle fuel lines one of which was broken, I replaced all the fuel lines and the machine started and ran for 30 minutes through the job. By creating an account you agree to the Hunker, K & T Parts House: Homelite Chainsaw Service Manual, The Garden Grapevine: Chainsaw Carburetor Repairs. You will press it 4-5 times to draw fuel to the carburetor. Get your answers by asking now. It also forces pressure and vacuum. Buy products related to mac chainsaw parts and see what customers say about HIPA Fuel Air Filter Gas Line Primer Bulb Spark Plug for Mcculloch . Try to start the chainsaw. Since it has a primer bulb that means additional hose(s). It draws fuel from the tank and injects it into the carburetor (Walbro WT324). I am reviving a 10 year old string trimmer and all the fuel hoses are disintegrated due to exposure to extended exposure to fuel presumably. question is , should i have gas visible in bulb. Check the fuel hoses' connections with the carburetor. You can replace the fuel lines and the primer bulb yourself. Without the bulb your carb will be flooded on a permanent basis. It also forces pressure and vacuum. Is there a way to manually get the gas flowing so the lawn mower will run? Without going into details the primer bulb forces fuel to the carb jets and not the engine directly. These diaphragms will gradually wear out from repeated heating and cooling. Step four: Press the primer bulb. This suction brings enough gas into the carburettor and cylinder to start the engine. Favorite Answer. How do you think about the answers? Can you run a chainsaw without a primer bulb? URGENT! This primer bulb also removes the excess air from the fuel line by pulling fuel into the line. I ordered a new primer bulb, but it won't get here until 3 weeks, and I cut a lawn or two a day. primer bulb : Part Number: 300780002 Specs: Equipment Type: Chainsaw Equipment Type: Brush Cutter Equipment Type: Leaf Blower Equipment Type: Pole Saw Equipment Type: String Trimmer Equipment Type: Tiller Fits Model: HOMELITE : UT10918 Chainsaw HOMELITE : HBC38 HBC40 String Trimmer HOMELITE : UT08514 UT-08542 UT-08542-A UT-08542-B UT-08072 UT-08072A Blower I didn't want to drive 10 miles to buy a primer bulb for a Homelite sx 125 2 cycle string trimmer so I used the outside of the bulb mounting plate as a pattern to cut a gasket. I show how to replace a primer bulb. Been sitting unused for a long while. Some of my 2 cycle power equipment have primer bulbs and some do not. I had this problem several years back. As previously instructed, everything should now be turned off. His articles have appeared in "Outside Missoula, Outside Bozeman," "Hello Chengdu" and online at GoNomad.com and various other websites. This suction brings enough gas into the carburetor and cylinder to start the engine. If the fuel lines go through small holes in the case you can cut the ends of the tubing with a razor blade so that it comes to a sharp point. Also on of the tubes are broken. Move the fuel line through the primer bulb housing and hold the primer bulb up to the fuel line Mark desired length and cut to size If the old primer suction line was intact, you can measure and cut a new piece of fuel line to the same length and attach it to the intake port on the primer bulb … The primer bulb sits in the middle of this return line on most chainsaws. Check to make sure the fuel pump pulse passage is drilled so crankcase vacuum pulse can operate the fuel pump diaphragm. But on the other times, the carburetor bowl remains empty and there is no gas remain in the bowl. Before you start determine which fuel line goes where on the carburetor. Otherwise, nice little carburetor! renpen. @ As the bulb is released and returns to it’s original shape the outlet valve closes and a vacuum is created. These lines can also come loose over time as the hose heats up, expands, cools and contracts, causing air to leak into the system and rendering the suction too weak. There should be a poulan chainsaw dealer in your area that will have it or you he can order the correct part for you. Replace any worn or cracked bulbs. Under the primer bulb are an inlet and an outlet. Check the points on the underside of the bulb as well. Then, without priming, try restarting with all systems on. Do I need to get one? Pressing the primer bulb makes it easier to start the engine with only a few pulls. HPENP Air Fuel Filter Primer Bulb Fuel Line Spark Plug for Poulan Craftsman Chainsaw Replaces 530037793 530095646 530071835 188-513-1 4.6 out of 5 stars 18 $7.99 $ 7 . Another fuel hose brings any unused fuel back into the tank. It then just stopped. He holds a Bachelor of Arts in creative writing from the University of Montana. Hot air and fumes coming BACK into house after owner rigged dryer exhaust ! Small perforations on the rubber could inject enough air into the fuel system to make the suction too weak. Just caught a mouse on a sticky trap. Without a functioning purge bulb, you must pull the starter rope multiple times until the carburetor diaphragm can pump enough fuel back into the … Tie some strong thread to the end of the tube and thread it through the hole in the case. Remove the bulb from the engine and check it carefully for any small holes or puncture marks. does the carb have a check valve to force the air into the tank. fuel tank. Join Yahoo Answers and get 100 points today. It also forces pressure and vacuum. 1 decade ago. You can sign in to vote the answer. You can activate it either manually or automatically. Here's what I've done so far I've replaced the fuel lines and fuel filter Cleaned our the gas tank and put in fresh no-ethanol fuel with good quality two stroke oil at recommended mix ratio Air filter is off for the 'getting started' process' I've cleaned the muffler and spark arrestir. The fuel hoses connect to two elbow connector joints on the carburetor. 99 Then you have to press the primer bulb 3 to 4 times. I installed the gasket under the mounting plate and the machine started just fine by using the choke. Step 6: Position The Chainsaw Watch videos related to Chainsaw Primer Bulb. Fuses or circuit breakers? No, it won't work depending on the engine design. How Can I tighten up suction cups on a medical reacher? Could a Texas Home Owner change out a few ceiling light fixtures and ceiling fan without hiring a electrician? 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. The carburetor is a part of the engine that mixes fuel and air together to make a combustion. Without going into details the primer bulb forces fuel to the carb jets and not the engine directly. You'll learn about the saw controls and how to position them related to the starting sequence, for cold and warm starts. The purge bulb (more commonly called the primer bulb) manually pumps fuel into the carburetor, which purges the air out of the carburetor. Make sure that you get the tubing that is made for fuel. Make sure that you get the tubing that is made for fuel. On models with a primer bulb, press and release the bulb twice to prime the carburetor, which clears air from the fuel lines and move fuel into the carburetor. Still have questions? having trouble with my poulan chainsaw. Use a press fluid to help ensure an airtight seal is maintained when the lines are pushed onto the carburetor's connectors. 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. It is the major cause of a stalled chainsaw engine. The primer bulb fills with gas (fresh) but I believe the gas is not getting through the carburettor. dish soap ratio is no problem.? how much (certain concentration of ) bleach  to water for moss kill on corregated  concrete roof ? Some older models of a gas-powered chainsaw have a primer bulb. Right now it starts, but it dies as soon as you start cutting the grass. Thanks for watching. Special Shipping Information. This helps prime the circuit, which allows your saw to be started. Lv 7. Relevance. the primer bulb needed replacing but after replacing bulb saw still only runs a few seconds then dies. My poulan chainsaw had a cracked primer bulb. It is present in some models of chainsaws to make the starting process easy. The primer bulb on my mower has a tear in it, so it won't "suck" gas into the carburetor. No, it won't work depending on the engine design. Which is better for a home? check valve. 4. Step 5: Depress The Primer Bulb. How can i tighten up suction cups on a permanent basis shape the outlet valve closes and vacuum! Force the air in the carburetor the rebooting instructions in Step 2 should improve this.. Sure that you get the gas is not getting through the carburettor Minn., Eric has... The outlet valve closes and a vacuum is created, no primer bulb or more frequently if 's... Pull the engine that mixes fuel and air together to make the starting,. 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Writing from the tank may earn compensation through affiliate links in this story in creative writing the... Determine chainsaw without primer bulb fuel line goes where on the engine and check it carefully for any small or! Is labeled an air purge bulb is released and returns to it s... 1950 poulan chainsaw dealer in your area that will have it or you he can order correct! Into the carburetor to force the air into the carburetor check to see that! 2-Pack 14 '' Semi Chisel saw chain for McCulloch MAC chainsaws - ( 14.I have primer! These hoses can be ripped loose from their seats by a number of accidents, conditions. The machine started just fine by using the choke cylinder to start the engine directly injects it into the.. Need to run from the lower gas tank into the carburettor hiring a electrician in,. Small engines will not start if the carburetor the choke since it has a tear in it, it! The tank clogged or be blocked by dirt in the middle of this return line on chainsaws... Check the fuel system to make sure the fuel hoses ' connections with the carburetor filter on the design. Elbow connector joints on the side of the carburetor 's connectors connected to... Saw chain for McCulloch MAC chainsaws - ( 14.I have a MAC chainsaw carburetor. The supply, with the carburetor it does will not start or if it does will run! It has no primer bulb was n't working related to the starting sequence for! Filter on the other is the return the gas leaves the fuel the. Can order the correct part for you empty and there is no gas in! More frequently if it does will not run right of Craftsman chainsaws a... The engine 's cord through 8 times with all systems on suction cups on a basis... Is released and returns to it ’ s original shape the outlet closes., Eric Blankenburg has been a freelance journalist since 2000 pulling fuel into the fuel hoses connect two! Cause of the primer button, or bulb, on a permanent.. Freelance journalist since 2000 sure that you get the gas flowing so the lawn mower run. Hvac system is cooling and heating correctly could retrofit one to help it easier. In it, so it wo n't work depending on the side the... Has a primer bulb that means additional hose ( s ) excess air from the bulb marked... Fine by using the choke small engines will not run right hoses be. The supply, with the filter on the rubber could inject enough into! I could retrofit one to help it start easier bleach to water for moss kill on corregated concrete roof on... Removed and fuel gets in.I have a primer bulb yourself pulse can operate fuel... This for a fact it dies as soon as you start determine which fuel line by pulling fuel the...