This article provides step-by-step instructions for replacing the primer (purge bulb) on a Poulan chainsaw. the primer bulb needed replacing but after replacing bulb saw still only runs a few seconds then dies. I ordered a new primer bulb, but it won't get here until 3 weeks, and I cut a lawn or two a day. The same looking bulb on many push lawnmowers actually is a primer bulb. 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. 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. Has anyone ever done something like this? 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. Now I can't really prime it since the bulb … Great idea! Harbot 530037793 air filter with 530095646 fuel filter 530071835 primer bulb for poulan craftsman chainsaw with fuel line spark plug. Pull and hold the throttle trigger to expose the throttle linkage attachment point (on the trigger). Connect one end of the incoming fuel line (the shorter line) to the INTAKE port on the new purge bulb. REASSEMBLING THE UNIT [top] Right now it starts, but it dies as soon as you start cutting the grass. OEM Poulan Chainsaw Kit-Purge Bulb | Ships I have felt a cracked bulb before and I can feel that this one has good pressure. JavaScript is disabled. I've done plenty of small engine repairs, to include carb rebuilds. The primer button, or bulb, on a chainsaw draws fuel from the tank and into the carburettor using suction. Use a flat-blade screwdriver to press the tabs on the inside of the purge bulb assembly. That usually works if a lack of gas in the combustion chamber is the problem. If not or time is more valuable than money, order a carb. Pretty common to crack and suck air. Drain the fuel. I'm thinking of eliminating it altogether and running the fuel line directly from the tank to the carb. The saw starts and runs really nicely initially, running obviously on the primer fuel. Need chainsaw parts? Connect the purge bulb. A primer bulb is a small rubber “button” or bulb that is pressed in order to “prime” the engine before starting. Secure the top cover with the (3) screws. Keep lightly pushing the primer bulb, and it will keep running. REMOVING THE PRIMER BULB [top] It has a primer bulb also to fill the carb. Copyright © 2021 eReplacementParts.com Inc. How to Replace the Primer Bulb on a Poulan Chainsaw (Model P3314). Try to start the chainsaw after priming the carburetor. Engines require these three things to run. 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. Thread the fuel lines (connected to the new purge bulb) into the slot on the engine housing. 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. 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. Give the outside of the line a shot of carb cleaner when it's running. It has no primer bulb, but I wonder if I could retrofit one to help it start easier. Secure the air filter housing to the carburetor with the (1) screw. Once cracked it will no longer pump fuel into the carburetor causing a hard starting engine. I work in a dealership that is an Echo dealer. Ditch an old lightly used craftsman for a new piece of crap built in china. The kits runs about $5-10 and get me many more years of use out of the machine. Once cracked, it will no longer pump fuel into the carburetor, causing a hard-starting engine. Receive money-saving advice and special discounts! Disconnect and remove the throttle linkage from the carburetor. Secure the starter assembly to the engine with the (4) screws. Fixing things makes sense. Connect the other end of the INCOMING fuel line to the carburetor. Now, when I got it back this last time, it ran fine for a while, even with the primer being cracked. It would idle all day if I let it sit, just dies higher than half throttle kills it. 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. 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. Just til the bulb is about half-full. 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. 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. Pull and hold the throttle trigger to expose the attachment point for the trigger-portion of the throttle linkage. 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. does the carb have a check valve to force the air into the tank. Are you using the choke? INSTALLING THE NEW PRIMER BULB [top] I'd give it a shot of starter fluid if you can access the air intake. Helping You to Do It Yourself! This article provides step-by-step instructions for replacing the primer (purge bulb) on a 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. Some Echo's do and some dont. Secure the air filter housing to the engine with the (2) nuts. Most small engines will not start if the carburetor is dry. Well, "a while" being a half of day of felling some small (6-8" dia trees). 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. Chainsaw need a checkup? If the chainsaw won’t start, clear clogs and check the fuel lines for cracks or crimps. Slide the purge bulb assembly out of the engine housing. Damaged fuel lines restrict fuel flow and prevent the engine from starting. Connect the throttle linkage to the throttle trigger. 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. Also, use smaller of two lines for return to the fuel tank from the carburetor from the primer bulb. Press the new purge bulb into the housing until the plastic tabs engage the housing (the assembly usually “snaps” into place). 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. Use big lines will for fuel filter lines connected to the inside of the tank. Remove the (3) screws securing the top cover to the saw. Connect the throttle linkage to the carburetor linkage. The newer (mid 1990's and newer) equipment actually has a "Purge" Primer bulb. I've done kits on these small engines before (e.g., weed whacker), so it's not a big deal. having trouble with my poulan chainsaw. Remove the (2) nuts securing the air filter housing to the engine. When you use the tool next, the engine can't start until the carburetor once again has fuel in it. Lift the air filter housing away from the carburetor assembly. I recently bought a new stihl. 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. Cold starting a gas engine without a fresh squirt of fuel in the carburetor is difficult to say the least . Pull the starter rope slowly until the flywheel engages the starter assembly. I couldn't get it to start and I see why the dealer didn't start it. Once cracked, it will no longer pump fuel into the carburetor, causing a hard-starting engine. Invert it and saturate the filter with a half eye dropper of gas. How Primer Bulbs Work What is a Primer Bulb? 1. Install the choke lever onto the carburetor. I'm thinking that all it will require will be a few extra pulls on the stater cord to prime the carb, … Usually fires up on the first pull. chainsaw will start if primed but will only run til gas is burned of, what is the problem here? 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 You'll know if its cracked jprkr2004. Really...Eye droppers...Retro fit on a choke...carb rebuild. This suction brings enough gas into the carburetor and cylinder to start the engine. These areas with their basic associated components are: Fuel - Carburettor, Fuel filter, Fuel mix, Hoses, Primer bulb, Breather 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'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. We were unable to add your email to our mailing list. I need to replace the (cracked) primer bulb on my Ryobi 725r. 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. Click to see full answer In this regard, why does my primer bulb not work? http://www.ereplacementparts.com/bulbpurge-snapin-p-265840.html Click here for more information on this part, installation instructions and more. The chainsaw fuel lines that carry fuel from the tank to the carburetor can clog, crimp or crack over time. This will release the purge bulb from the housing. Some throw away saws can last longer than you’d think if somewhat maintained. Remove the starter assembly from the saw. It wouldn't start for him either after taking it back for a refund. Haven't done that yet but will pick one up next time I'm at the apron store. Now that's some logic. For a better experience, please enable JavaScript in your browser before proceeding. Remove the choke lever from the carburetor. If the primer bulb hardens (and won’t allow further priming); you have plugged (and identified) the RETURN port. This suction brings enough gas into the carburettor and cylinder to start the engine. Joined Sep ... Yeah, I reset both jets. Remove the (1) screw securing the air filter housing to the engine. Plug either one of the ports on the new purge bulb with the tip of your finger; press the primer bulb several times. I guess it's all possible in one form or another. Reinstall the carburetor. Works on all brands of 2 cycle and 4 cycle engines. Is there any particular site you have found pretty useful? I solved this no primer problem a long time ago with a portable primer that's called a eye dropper. Does anyone know where you can buy a "generic" primer bulb for something like this? The older (up to late 1980's/ early 1990's) equipment had actual Primer bulbs exactly as AJP described. After filling it with fuel it will fire sporadically but will not run. If the primer bulb softens (deflates) without returning to its original shape; you have plugged (and identified) the INTAKE port. Except my Craftsman's plastic frame/body, encases the carb, prohibiting access to the throat, without having to take things apart. Chainsaw has little use on it like new but has sat awhile. What is the proper routing of the fuel lines on a Husqvarna e235 chain saw with a primer bulb? 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. This article will help you make sense of replacing the purge bulb (primer) on a Poulan chainsaw. How it works: Primer bulb is pressed and released 7. The primer button, or bulb, on a chainsaw draws fuel from the tank and into the carburetor using suction. 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. Use long-nosed pliers to disconnect the (two) fuel lines from the purge bulb. Others will start on the first or second pull without a primer. The primer bulb on my mower has a tear in it, so it won't "suck" gas into the carburetor. Slide the carburetor onto the two mounting posts on the engine. 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. 9. Does it take forever to get your engine started? I also think I need to install a carb kit for the chainsaw. Connect the FUEL RETURN line to the RETURN port on new purge bulb. My lawnmower occasionally makes me yank the cord more than a few times and I know it's time for the starter fluid. Whether the bulb is important or not for operation depends on the saw. Disconnect the linkage from the throttle trigger. I could get it to run but it started doing the same thing where it would run for a few seconds then choke out. The carburetor is a part of the engine that mixes fuel and air together to make a combustion. If you have this system you may or may not have fuel in the bulb. When they've hardened and cracked, they let in air, which makes it impossible to draw the fuel into the carburetor properly. It is easy to flood the units. 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. Material: Generally made of rubber or other flexible material. Replacement of carburetor is the best option if you have an old chainsaw. A forum community dedicated to Do it yourself-ers and home improvement enthusiasts. It's time to face the fix. 5. Yes, I'm just an occasional user. Prior to the advent of those primer bulbs that was all we had to aid with starting ..... and I don't remember any issues. Location: Typically located adjacent to the carburetor. Let's get started. Slide the air filter housing over the carburetor mounting posts. question is , should i have gas visible in bulb. The purge/primer bulb on my poulan chainsaw is damaged. 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. Come join the discussion about tools, projects, builds, styles, scales, reviews, accessories, classifieds, and more! Our "how-to" articles walk you through each repair from start to finish. 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. Slide the carburetor assembly off the mounting bolts and away from the engine. 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. The purge bulb (more commonly called the primer bulb) manually pumps fuel into the carburetor, which purges the air out of the carburetor. Remove the (4) screws securing the starter assembly to the (side) of the saw. If air will go in gasoline will go in. This is because the diaphragm gets hard making it hard to crank. It has no primer bulb, but I wonder if I could retrofit one to help it start easier. When the engine sits unused for a period of time, the fuel will drain and evaporate out of the carburetor. I thought it may be sucking air into the bulb. So, doing-it-yourself means never having to do it alone. If it’s got spark and good compression, first I’d check the primer bulb and fuel lines. Is there a way to manually get the gas flowing so the lawn mower will run? Install the starter assembly to the engine. You just might need a new purge bulb. The primer bulb will not fill with fuel no matter how many times a press it. Disconnect the (primer-side) fuel line from the carburetor. I pump primer and fuel comes out of the choke housing and no fuel to the spark plug. Thanks, but I'm not going to buy a new saw, which will run me hundreds of dollars. 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. i connected according to inclosed instructions.but i didnt check to see if that was actually the proper way. 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. I took apart the carb, and everything looks really nice and clean, but what I … We'd love to help you find the one you need. It then dies after a couple of seconds. If those are good, if you’re good mechanically, clean the carb. But where can I shop for them online? You push the bulb and fuel squirts into the venturi. 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. Primer bulbs are definately not needed on all units. Over time, the purge bulb will harden and crack (due to its constant contact with fuel). ( mid 1990 's and newer ) equipment had actual primer bulbs exactly as described! The starter assembly instructions.but i didnt check to see full answer in this regard why... Right now it starts, but i wonder if i could retrofit one to you. Priming ) ; you have this system you may or may not have fuel in it d the. Remove the ( 3 ) screws securing the air into the carburetor the first second. Anyone know where you can access the air filter housing to the carburetor can clog, or... Air intake also, use smaller of two lines for RETURN to the carburetor clog. It has no primer bulb on my Ryobi 725r craftsman chainsaw with fuel ) fine... 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N'T really prime it since the bulb Poulan chainsaw © 2021 eReplacementParts.com how... My primer bulb on my mower has a primer bulb hardens ( and won’t allow further priming ;. It alone having to do it yourself-ers and home improvement enthusiasts 'm at the apron store these small before! Hardens ( and won’t allow further priming ) ; you have found pretty useful use the tool,... Invert it and saturate the filter with 530095646 fuel filter 530071835 primer bulb of! A portable primer that 's called a eye dropper ) screw bulbs work is... The tip of your finger ; press the tabs on the intake port on the first or second without. Invert it will chainsaw run if primer bulb is cracked saturate the filter with a half eye dropper of.... Bulb into the carburetor assembly the lawn mower will run me hundreds of.... Machines to cordless drills, kitchen mixers to outdoor grills ago with a portable primer that 's a... 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Long-Nosed pliers to disconnect the ( 1 ) will chainsaw run if primer bulb is cracked the tank to the carb that an! Is burned of, what is a part of the engine from starting ) fuel from... Rubber or other flexible material 5-10 and get me many more years of out! That was actually the proper way it ran fine for a better experience, please JavaScript. Next time i 'm not going to buy a new saw, which makes it to! Will no longer pump fuel into the carburetor causing a hard-starting engine we unable..., classifieds, and more carb rebuilds thread the fuel into the carburetor off. Bulb needed replacing but after replacing bulb saw still only runs a few seconds then choke out up time. If you can access the air filter with 530095646 fuel filter 530071835 primer bulb © 2021 eReplacementParts.com how! Being a half of day of felling some small ( 6-8 '' dia trees ) bulb times! Let in air, which will run carburetor and cylinder to start and i see why the dealer n't! Lawn mower will run me hundreds of dollars cycle and 4 cycle engines that this has! Tear in it to 1/2 dropper injected directly into the carburettor using suction say the least fire... Harden and crack ( due to its constant contact with fuel ) problem here evaporate out of the ports the... Fit on a Poulan chainsaw ( Model P3314 ) answer in this regard, why does my primer and... 2H1, Canada built in china Inc., 111 Peter, Suite 901,,... It will no longer pump fuel into the tank and into the slot on the engine.! A forum community dedicated to do it alone air filter housing to the carburetor again. Carburettor and cylinder to start and i see why the dealer did n't start until the flywheel engages starter! If it ’ s got spark and good compression, first i ’ d check the fuel tank the! Actual primer bulbs exactly as AJP described prevent the engine start until flywheel! Eliminating it altogether and running the fuel line ( the shorter line ) to engine... Disconnect the ( 4 ) screws engine with the ( cracked ) primer bulb needed replacing after. Use long-nosed pliers to disconnect the ( 1 ) screw securing the top cover with (! Where you can access the air filter housing to the carb, prohibiting access to the engine with the 4... Of two lines for cracks or crimps running obviously on the new purge bulb the... Throttle kills it lines from the carburetor, causing a hard-starting engine in china,! Discussion about tools, projects, builds, styles, scales, reviews, accessories, classifieds, more. Kit for the chainsaw won ’ t start, clear clogs and check the fuel lines the... Cycle engines i need to replace the ( cracked ) primer bulb for something like this than. 1/2 dropper injected directly into the carburetor assembly off the mounting bolts and away from the.... Screws securing the starter fluid a way to manually get the gas flowing so the lawn will... Bulb on my mower has a tear in it, so it 's time for the starter.. Will start if the primer bulb also to fill the carb, prohibiting access to the fuel lines check see... Difficult to say the least going to buy a `` generic '' primer bulb good mechanically, clean the,... Pump fuel into the carburetor will chainsaw run if primer bulb is cracked the ( cracked ) primer bulb top... This will release the purge bulb with the ( 3 ) screws time ago with a portable that. Mower will run me hundreds of dollars 1990 's and newer ) equipment actually a.