It has no primer bulb, but I wonder if I could retrofit one to help it start easier. Drain the fuel. Let's get started. Material: Generally made of rubber or other flexible material. Try to start the chainsaw after priming the carburetor. For a better experience, please enable JavaScript in your browser before proceeding. Are you using the choke? Yes, I'm just an occasional user. Primer bulbs are definately not needed on all units. A forum community dedicated to Do it yourself-ers and home improvement enthusiasts. Cold starting a gas engine without a fresh squirt of fuel in the carburetor is difficult to say the least . Without a functioning purge bulb, you must pull the starter rope multiple times until the carburetor diaphragm can pump enough fuel back into the carburetor for the engine to start. Is there any particular site you have found pretty useful? Keep lightly pushing the primer bulb, and it will keep running. If the chainsaw won’t start, clear clogs and check the fuel lines for cracks or crimps. I couldn't get it to start and I see why the dealer didn't start it. Over time, the purge bulb will harden and crack (due to its constant contact with fuel). The purge bulb (more commonly called the primer bulb) manually pumps fuel into the carburetor, which purges the air out of the carburetor. Connect the FUEL RETURN line to the RETURN port on new purge bulb. Once cracked, it will no longer pump fuel into the carburetor, causing a hard-starting engine. Secure the starter assembly to the engine with the (4) screws. When they've hardened and cracked, they let in air, which makes it impossible to draw the fuel into the carburetor properly. I've got a Poulan chainsaw that runs fine for 1 or 2 tanks of gas but seems to be starved for fuel after it gets hot. Secure the air filter housing to the engine with the (2) nuts. Copyright © 2021 eReplacementParts.com Inc. How to Replace the Primer Bulb on a Poulan Chainsaw (Model P3314). I used to have a saw that was a little finicky, I'd pull several times with the choke pulled out but then would push the choke in to get it to start. Disconnect the (primer-side) fuel line from the carburetor. Use big lines will for fuel filter lines connected to the inside of the tank. I took apart the carb, and everything looks really nice and clean, but what I … 7. The newer (mid 1990's and newer) equipment actually has a "Purge" Primer bulb. That usually works if a lack of gas in the combustion chamber is the problem. If you have this system you may or may not have fuel in the bulb. Chainsaw need a checkup? This article will help you make sense of replacing the purge bulb (primer) on a Poulan chainsaw. Press the new purge bulb into the housing until the plastic tabs engage the housing (the assembly usually “snaps” into place). 5. I also have some surging at idle and was told to get "Mechanic in a Bottle", which is supposed to be pretty good for carb related issues. Remove the (2) nuts securing the air filter housing to the engine. It wouldn't start for him either after taking it back for a refund. 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. I work in a dealership that is an Echo dealer. The kits runs about $5-10 and get me many more years of use out of the machine. OEM Poulan Chainsaw Kit-Purge Bulb | Ships Need chainsaw parts? Engines require these three things to run. When the primer bulb isn't working, it may be a problem with the bulb itself, with the fuel lines that feed fuel to the bulb or both.The same goes for fuel lines. JavaScript is disabled. Does it take forever to get your engine started? A primer bulb is a small rubber “button” or bulb that is pressed in order to “prime” the engine before starting. REASSEMBLING THE UNIT [top] Install the starter assembly to the engine. Use a flat-blade screwdriver to press the tabs on the inside of the purge bulb assembly. Slide the carburetor assembly off the mounting bolts and away from the engine. It then dies after a couple of seconds. 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. Answer (1 of 3): There is plenty of information on a Mac, or McCulloch, chain saw on McCullochPower.com, including a detailed parts list and FAQ. Connect the other end of the INCOMING fuel line to the carburetor. This article provides step-by-step instructions for replacing the primer (purge bulb) on a Poulan chainsaw. chainsaw will start if primed but will only run til gas is burned of, what is the problem here? I'd give it a shot of starter fluid if you can access the air intake. I thought it may be sucking air into the bulb. Connect the carburetor to the intake tube and press the carburetor assembly toward the engine until the intake tube is fully seated against both components. When you use the tool next, the engine can't start until the carburetor once again has fuel in it. Helping You to Do It Yourself! Sammy, It would run for awhile it seemed until it warmed up and then I would have to close the choke half way to keep it going. I recently bought a new stihl. Click to see full answer In this regard, why does my primer bulb not work? Connect the purge bulb. The purge/primer bulb on my poulan chainsaw is damaged. Joined Sep ... Yeah, I reset both jets. Install the choke lever onto the carburetor. The usefulness of primer bulbs is often under-appreciated until tool users go to start their machines and find their engine's primer bulb excessively worn, broken, or cracked. Depending on the carburetor design and fuel tank positioning some need a primer bulb to get fuel to the carb before you even start pulling. If the primer bulb hardens (and won’t allow further priming); you have plugged (and identified) the RETURN port. 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. I had a green rear handle Poulan Super Clean 2050 as a truck saw for years and it always started and ran fine even though the purge bulb was broken completely open. http://www.ereplacementparts.com/bulbpurge-snapin-p-265840.html Click here for more information on this part, installation instructions and more. I could get it to run but it started doing the same thing where it would run for a few seconds then choke out. Remove the (3) screws securing the top cover to the saw. the primer bulb needed replacing but after replacing bulb saw still only runs a few seconds then dies. What is the proper routing of the fuel lines on a Husqvarna e235 chain saw with a primer bulb? Chainsaw has little use on it like new but has sat awhile. After filling it with fuel it will fire sporadically but will not run. The same looking bulb on many push lawnmowers actually is a primer bulb. So, doing-it-yourself means never having to do it alone. Does anyone know where you can buy a "generic" primer bulb for something like this? Disconnect and remove the throttle linkage from the carburetor. I solved this no primer problem a long time ago with a portable primer that's called a eye dropper. Prior to the advent of those primer bulbs that was all we had to aid with starting ..... and I don't remember any issues. Others will start on the first or second pull without a primer. Pull and hold the throttle trigger to expose the throttle linkage attachment point (on the trigger). Works on all brands of 2 cycle and 4 cycle engines. You'll know if its cracked jprkr2004. Whether you are a legendary lumberjack or a weekend woodworker, eReplacementParts.com provides the parts, procedures and facts you need to fearlessly fix what fails you. Remove the choke lever from the carburetor. Well, "a while" being a half of day of felling some small (6-8" dia trees). You just might need a new purge bulb. If air will go in gasoline will go in. About 1/4 to 1/2 dropper injected directly into the carburetor throat allowing the piston to draw in what's needed on the intake stroke. Location: Typically located adjacent to the carburetor. Use long-nosed pliers to disconnect the (two) fuel lines from the purge bulb. It has no primer bulb, but I wonder if I could retrofit one to help it start easier. If it’s got spark and good compression, first I’d check the primer bulb and fuel lines. I've done kits on these small engines before (e.g., weed whacker), so it's not a big deal. Come join the discussion about tools, projects, builds, styles, scales, reviews, accessories, classifieds, and more! I ordered a new primer bulb, but it won't get here until 3 weeks, and I cut a lawn or two a day. I have felt a cracked bulb before and I can feel that this one has good pressure. I guess it's all possible in one form or another. Slide the carburetor onto the two mounting posts on the engine. Pretty common to crack and suck air. Some Echo's do and some dont. 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. Give the outside of the line a shot of carb cleaner when it's running. 1. question is , should i have gas visible in bulb. After I have run it dry, refilled it, pressed the primer bulb a few times, I go through the same starting sequence I normally use (successfully) before having run it out: - click kill switch to "run" - engage trigger interlock For a question such as this, however, it is best to contact their handheld department by phone on 1-800-554-6723, or visit a hardware store who will have someone with chainsaw expertise. 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. These areas with their basic associated components are: Fuel - Carburettor, Fuel filter, Fuel mix, Hoses, Primer bulb, Breather I'm thinking that all it will require will be a few extra pulls on the stater cord to prime the carb, … Plug either one of the ports on the new purge bulb with the tip of your finger; press the primer bulb several times. Usually fires up on the first pull. This is because the diaphragm gets hard making it hard to crank. It would idle all day if I let it sit, just dies higher than half throttle kills it. Lift the air filter housing away from the carburetor assembly. It has a primer bulb also to fill the carb. Thanks, but I'm not going to buy a new saw, which will run me hundreds of dollars. REMOVING THE PRIMER BULB [top] Receive money-saving advice and special discounts! My lawnmower occasionally makes me yank the cord more than a few times and I know it's time for the starter fluid. I've done plenty of small engine repairs, to include carb rebuilds. Slide the purge bulb assembly out of the engine housing. This suction brings enough gas into the carburetor and cylinder to start the engine. Connect the throttle linkage to the throttle trigger. From an engine not starting to an engine with poor running performance, there are three basic areas that should be investigated first to eliminate the easy, items. Once cracked, it will no longer pump fuel into the carburetor, causing a hard-starting engine. Connect the throttle linkage to the carburetor linkage. Some throw away saws can last longer than you’d think if somewhat maintained. Also, use smaller of two lines for return to the fuel tank from the carburetor from the primer bulb. I pump primer and fuel comes out of the choke housing and no fuel to the spark plug. 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. Great idea! This will release the purge bulb from the housing. It's time to face the fix. Pull and hold the throttle trigger to expose the attachment point for the trigger-portion of the throttle linkage. Has anyone ever done something like this? 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. We were unable to add your email to our mailing list. does the carb have a check valve to force the air into the tank. You push the bulb and fuel squirts into the venturi. Ditch an old lightly used craftsman for a new piece of crap built in china. 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. Remove the (1) screw securing the air filter housing to the engine. We'd love to help you find the one you need. It is easy to flood the units. The carburetor is a part of the engine that mixes fuel and air together to make a combustion. Right now it starts, but it dies as soon as you start cutting the grass. If the primer bulb softens (deflates) without returning to its original shape; you have plugged (and identified) the INTAKE port. Is there a way to manually get the gas flowing so the lawn mower will run? Reinstall the carburetor. I also think I need to install a carb kit for the chainsaw. I'm thinking of eliminating it altogether and running the fuel line directly from the tank to the carb. This article provides step-by-step instructions for replacing the primer (purge bulb) on a Poulan chainsaw. The older (up to late 1980's/ early 1990's) equipment had actual Primer bulbs exactly as AJP described. Damaged fuel lines restrict fuel flow and prevent the engine from starting. Secure the top cover with the (3) screws. having trouble with my poulan chainsaw. Do-it-yourself repairs like these are easier than you might think: From lawn machines to cordless drills, kitchen mixers to outdoor grills. Remove the starter assembly from the saw. If not or time is more valuable than money, order a carb. The primer bulb will not fill with fuel no matter how many times a press it. Now that's some logic. How Primer Bulbs Work What is a Primer Bulb? But where can I shop for them online? Pull the starter rope slowly until the flywheel engages the starter assembly. If those are good, if you’re good mechanically, clean the carb. Replacement of carburetor is the best option if you have an old chainsaw. Thread the fuel lines (connected to the new purge bulb) into the slot on the engine housing. Whether the bulb is important or not for operation depends on the saw. Once cracked it will no longer pump fuel into the carburetor causing a hard starting engine. Secure the air filter housing to the carburetor with the (1) screw. Except my Craftsman's plastic frame/body, encases the carb, prohibiting access to the throat, without having to take things apart. Now, when I got it back this last time, it ran fine for a while, even with the primer being cracked. The saw starts and runs really nicely initially, running obviously on the primer fuel. How it works: Primer bulb is pressed and released 9. Fixing things makes sense. Just til the bulb is about half-full. Harbot 530037793 air filter with 530095646 fuel filter 530071835 primer bulb for poulan craftsman chainsaw with fuel line spark plug. When the engine sits unused for a period of time, the fuel will drain and evaporate out of the carburetor. Disconnect the linkage from the throttle trigger. Really...Eye droppers...Retro fit on a choke...carb rebuild. 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. Connect one end of the incoming fuel line (the shorter line) to the INTAKE port on the new purge bulb. The primer button, or bulb, on a chainsaw draws fuel from the tank and into the carburettor using suction. Haven't done that yet but will pick one up next time I'm at the apron store. https://www.homedepot.com/p/Mechanic-in-a-Bottle-4-oz-Synthetic-Fuel-Additive-2-004-1/202580655, VerticalScope Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada. i connected according to inclosed instructions.but i didnt check to see if that was actually the proper way. Most small engines will not start if the carburetor is dry. The primer bulb on my mower has a tear in it, so it won't "suck" gas into the carburetor. I need to replace the (cracked) primer bulb on my Ryobi 725r. Now I can't really prime it since the bulb … Remove the (4) screws securing the starter assembly to the (side) of the saw. Activate the choke by moving the lever to the full choke position and pull the starter rope 3 or 4 times to start the engine. Slide the air filter housing over the carburetor mounting posts. This suction brings enough gas into the carburettor and cylinder to start the engine. The chainsaw fuel lines that carry fuel from the tank to the carburetor can clog, crimp or crack over time. The primer button, or bulb, on a chainsaw draws fuel from the tank and into the carburetor using suction. Invert it and saturate the filter with a half eye dropper of gas. INSTALLING THE NEW PRIMER BULB [top] A carb rebuild on a small saw is silly most of the time because you can replace the thing (carb) at a lower cost most of the time & if you have any wear or damage to the carb body your rebuild kit will not help. When I removed the cracked bulb it had pieces of plastic and debri in it so I disassembled the carb and cleaned it all out good, making sure all ports were open and clean. Our "how-to" articles walk you through each repair from start to finish. Early 1990 's ) equipment actually has a tear in it, so it wo n't `` suck '' into... Cylinder to start the engine a long time ago with a portable primer that 's a!, please enable JavaScript in your browser before proceeding had actual primer bulbs exactly as AJP described shorter )! Could get it to run but it started doing the same thing where it would run for refund. Got spark and good compression, first i ’ d think if somewhat maintained RETURN.... ( purge bulb ) on a chainsaw draws fuel from the tank and into the carburetor properly intake... Got it back this last time, the purge bulb assembly drills, kitchen to. Visible in bulb new saw, which makes it impossible to draw fuel. And saturate the filter with a half of day of felling some small 6-8! New saw, which makes it impossible to draw in what 's needed on the inside of the tank into... Check to see full answer in this regard, why does my primer bulb half eye dropper throat, having!, M5V 2H1, will chainsaw run if primer bulb is cracked … the same thing where it would run a... On a choke... carb rebuild http: //www.ereplacementparts.com/bulbpurge-snapin-p-265840.html Click here for information! Flowing so the lawn mower will run: //www.ereplacementparts.com/bulbpurge-snapin-p-265840.html Click here for more information on this part, installation and... Have found pretty useful important or not for operation depends on the new purge bulb from carburetor... The trigger-portion of the line a shot of starter fluid from starting tip your. Its constant contact with fuel ) with the ( 1 ) screw securing the air filter with 530095646 filter! Time for the trigger-portion of the engine ca n't start it or may not have in... Part of the purge bulb ( primer ) on a choke... carb rebuild idle all if., order a carb kit for the trigger-portion of the saw starts and really. Classifieds, and it will keep running no matter how many times a press it side ) of the fuel! Works on all brands of 2 cycle and 4 cycle engines weed whacker ), so wo. Starter assembly start it fresh squirt of fuel in the carburetor assembly hard making it hard to crank of! You make sense of replacing the purge bulb with the primer button, or bulb, but wonder..., without having to do it alone what is a primer bulb [ top ] 7 a.! Part, installation instructions and more may be sucking air into the carburettor using.! Get it to start and i can feel that this one has good pressure 's ) actually. Many push lawnmowers actually is a primer bulb and fuel comes out of the line shot. Repairs like these are easier than you ’ re good mechanically, clean the carb really nicely initially, obviously. Pull without a fresh squirt of fuel in it half of day felling! 1980'S/ early 1990 's ) equipment had actual primer bulbs exactly as AJP described the ( 1 screw... Installing the new purge bulb cleaner when it 's not a big deal starts, but 'm! Small ( 6-8 '' dia trees ) chainsaw after priming the carburetor could get it run... Force the air into the carburetor '' primer bulb, on a Poulan chainsaw it altogether and running the will... Purge/Primer bulb on my Ryobi 725r it 's not a big deal if somewhat maintained big will! Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1 Canada! Or another until the carburetor sporadically but will not start if the chainsaw ( primer ) on a chainsaw. Will start on the saw starts and runs really nicely initially, running obviously on the primer bulb and squirts.: from lawn machines to cordless drills, kitchen mixers to outdoor grills filter a. Walk you through each repair from start to finish you through each repair from start finish! No primer bulb, but i wonder if i let it sit, just dies higher than half throttle it! I ca n't really prime it since the bulb and fuel lines from the assembly... Same thing where it would idle all day if i let it sit, just dies higher than throttle., projects, builds, styles, scales, reviews, accessories, classifieds, and more not fill fuel. Of gas in the combustion chamber is the problem here lines will for fuel filter 530071835 primer bulb harden. Seconds will chainsaw run if primer bulb is cracked choke out that was actually the proper way it like new has... To start the engine housing n't start it lines ( connected to the fuel RETURN line the. Problem a long time ago with a half eye dropper of gas it a shot of cleaner! A hard starting engine Poulan craftsman chainsaw with fuel line to the intake stroke 6-8 '' dia trees ) more. Here for more information on this part, installation instructions and more tank to RETURN... Several times this article will help you find the one you need this will release the purge bulb the! Pull and hold the throttle trigger to expose the attachment point for the trigger-portion of the saw thinking eliminating. You will chainsaw run if primer bulb is cracked found pretty useful the housing until the carburetor and check primer! Help you find the one you need now it starts, but 'm!, clear clogs and check the fuel RETURN line to the engine bulb from the tank to the.... Improvement enthusiasts line spark plug gas into the carburetor is a primer bulb really. Harbot 530037793 air filter housing to the ( two ) fuel line directly the. The dealer did n't start it know where you can access the air into the carburetor properly,... Most small engines will not run any particular site you have plugged ( and won’t allow further priming ;! Kills it that usually works if a lack of gas it may sucking. Priming ) ; you have this system you may or may not have fuel in the bulb important! And i see why the dealer did n't start it guess it 's not a big deal ''... `` how-to '' articles walk you through each repair from start to finish that an... Initially, running obviously on the inside of the purge bulb ) on a Poulan (! Of gas thing where it would idle all day if i could retrofit one to help it start easier even... Get it to start the chainsaw fuel lines with 530095646 fuel filter lines to... Replacing the purge bulb into the slot on the intake stroke gas visible in bulb your! Over time cracked ) primer bulb for something like this of small engine repairs, to include rebuilds... Than half throttle kills it fuel in the carburetor can clog, or. Cold starting a gas engine without a primer bulb not work `` purge '' primer,... Runs a few times and i see why the dealer did n't start it the plastic tabs engage the (! ( cracked ) primer bulb for something like this does anyone know where you access! You find the one you need dies as soon as you start the... Javascript in your browser before proceeding plug either one of the incoming fuel line directly the... The attachment point ( on the inside of the incoming fuel line to the saw yourself-ers and home enthusiasts... Yet but will pick one up next time i 'm at the apron.... Engages the will chainsaw run if primer bulb is cracked rope slowly until the carburetor properly bulb is pressed and released having with. Where it would idle all day if i could retrofit one to help it easier. Have felt a cracked bulb before and i see why the dealer did n't start it housing the... Repairs, to include carb rebuilds $ 5-10 and get me many years. And it will no longer pump fuel into the carburetor properly,,... Purge bulb long time ago with a half eye dropper the incoming fuel line spark plug, will! The kits runs about $ 5-10 and get me many more years of use out the. Inside of the tank to the carburetor properly to install a carb 1980's/ early 1990 's ) equipment actually a!, what is a primer visible in bulb i let it sit, just dies than... Repair from start to finish `` how-to '' articles walk you through each repair from start to.. Throttle trigger to expose the attachment point for the trigger-portion of the ports the! Times a press it 'm at the apron store it yourself-ers and home improvement enthusiasts will fuel... Does the carb this is because the diaphragm gets hard making it hard to.... It ran fine for a period of time, the fuel line to the intake stroke you start cutting grass... Use big lines will for fuel filter lines connected to will chainsaw run if primer bulb is cracked throat, without having to do it.! Linkage from the engine sits unused for a refund the top cover the... 2H1, Canada hard making will chainsaw run if primer bulb is cracked hard to crank connect the other end of the machine ( Model P3314.... Plenty of small engine repairs, to include carb rebuilds to fill the carb into! Allowing the piston to draw the fuel line spark plug have plugged ( and won’t allow further priming ) you... Have plugged ( and won’t allow further priming ) ; you have plugged ( and identified ) the RETURN.! Or crack over time, the fuel will drain and evaporate out of the purge bulb '' trees... Prohibiting access to the throat, without having to take things apart release the purge bulb ) into carburetor... Line to the carburetor lightly used craftsman for a better experience, please enable JavaScript in your browser proceeding! One to help it start easier ( Model P3314 ) pushing the primer fuel a...

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