But there are a few simple checks that you should make before taking it to a professional or tossing it in the trash. Practice … Not all trimmer line spool sizes are the same, and this can really make a difference in how long the trimmer line will go without being replaced. If the recoil spring has snapped, it will be impossible for you to start the weed eater altogether. This site is a participant in affiliate programs such as Amazon Associates and earns from qualifying purchases. Immediately after the engine turns over, set the choke to "run" to prevent the engine from sputtering. A common sign that the main issue with your string trimmer lies in the air filter is the engine starting and then stopping abruptly after a couple of minutes. What to Do When a Ryobi 4-Cycle Trimmer Won't Start Dirty or Worn Spark Plug. Ryobi String Trimmer - won't start (parmer and mopac) $40. When the primer won't prime, the engine won't run. Gas weed eaters offer lots of power – unless they won’t start, that is. We can help you find the right part to replace. My neighbor got a ryobi chainsaw at Home Depot. Hold times are long. Then intermittent, but runs very well at half or less speed. Unlike corporate website companies, the authors on this website regularly use many of the tips and recommendations provided in their own garden and lawncare. Ryobi weed eater won't start. When you release the rope, the tabs should retract and the rope should rewind back on the pulley. I've had my mower for 2.5 years. this trimmer won't start. In the market for a new weed eater? Now it will not start. Any hints, tips? The air filter can become blocked or dirty after prolonged use or if you have stored your weed eater for too long. $144.97 Free Shipping . Let the filter air-dry and place it back only once it is fully dry. By: Eric Blankenburg 21 September, 2017. Browse our range of grass trimmers, brush cutters and garden power tools. Ryobi line trimmer 25.4cc c/shaft RlT254FCDSN have tried new spark plug, new lot of petrol, cleaned filters still doesn't fire up only floods with fuel. Any advice is appreciated. The first is that there may not be any spark to ignite the air/fuel mixture. Ensure that the on/off switch is on the “on” position, While holding the throttle trigger, pull the starter recoil several times. Anyway, now it just refuses and I tried all the little tricks above and sprayed starter fluid in the carb. Sometimes, the cap itself may be stuck due to malfunction or inside tearing off. It's also possible that the trimmer recoil starter needs servicing. Usually, all you will need to do is: If you are having trouble visualizing this, here is a great YouTube video from Steve’s Small Engine Saloon where he intentionally floods the weed eater then goes through the simple process of unflooding it. Trimmer: Won't Start . As a result, the engine won't start. 3,713 satisfied customers. Crabgrass is an annoying, creeping, annual grass that can quickly invade lawns, flower beds, and vegetable gardens. Then I saw two lines inside the gas tk. This is necessary for the ignition process to begin. I think there is a problem with the fuse key not making the connection. SPONSORED. I have a Ryobi ry09055 leaf blower that will only start with starter fluid. If you've tried a few times and it still won't start, and you smell gasoline, you've probably flooded it. And if you are just sick and tired of your gas-powered yard tools needing repair and maintenance, be sure to read Gas vs Electric: 6 Reasons To Use Battery-Powered Yard Tools. I cannot find anyone in the area to service this mower. Is there any kind of filter in the carburetor I could clean or replace? ... FULL CRANK STRAIGHT SHAFT GAS STRING TRIMMER RYOBI 2-Cycle 25cc Weed Eater Edger. Among the first things to check if your trimmer won't start is the spark plug. the shoulder strap was a little short so i stopped the engine, set down and loosened the strap. If this one doesn’t match your weed eater’s engine, just search for your brand. If the rewind spring is broken, replace it. If the porcelain insulator is cracked, an electrode is burned away or damaged, or there is heavy carbon buildup at the electrode, replace the spark plug. Remove all of the non-metallic parts since the carburetor cleaner will cause them to be disfigured decompose and plug the carburetor as time goes on. Troy Bilt 2-Cycle String Trimmer Won't Start. En español Live Chat online. The REEL EASY string trimmer head allows you to simply feed the line through the head and then twist it to wrap the string. Also, thinking therefore that it may be poor sensing by the battery. YES-This is dangerous (obvi... ABC Action News WestNet-HD, the home for WestNet Wireless High-Speed Internet customers in Calgary, Alberta & Santa Barbara California. Hi everyone! Sits all winter, pull the string and off it goes.The Poulan tree trimmer runs but only with the choke set at half open. Written by: Eric Blankenburg . Click Here to see the latest deals (link To Amazon). When we went to start it again an it won't start … Some common telltale signs of a fault carburetor are: The first thing we want to do is to clean the carburetor. Recoil starters can be a little tricky to replace if you don’t have any experience with small engine repair. The best way to find out is to take the spark plug out of the engine and check its condition. 01 - Spark Plug. With so many different parts, a lot of things can wrong with a Ryobi trimmer. Shipping all 7 days! Find many great new & used options and get the best deals for Ryobi 25.4cc Petrol Easy Start Line Grass Trimmer Whipper Snipper Expander - NEW at the best online prices at ebay! one had the fuel filter attached at the end of the line. If your trimmer is not working and does not start, some of the following parts might be causing this problem: the ignition module, fuel filter, fuel lines, primer bulb, and carburetor. The carburetor is the heart of the engine. Written on: July 14, 2020. Trimmer: Won't Start . Using normal start procedures, it started right up, and I have run it for several hours since, using the straight and curved shaft trimmer heads, the 720r Vacuum/blower attachment, 10" pruner attachment, and the brush cutter. Find great deals for Ryobi RY253SS Full Crank 2-cycle Gas String Trimmer Won't Start For Parts/Repair. Hi all, I'm new here. Totally annoyed and no longer a purchaser of Ryobi Line Trimmers. Wash the carburetor cleaner off of the metal parts by washing them in warm, soapy water then rinsing with clean water. So its brand new and i cant start it, electically or manually. When your trimmer just won't start, the problem usually lies in the spark plug or ignition system. We started it up right of the box just fine. Similar to an older car, the engine of your weed eater can be “flooded” with a too-rich blend of fuel and air. The air filter is another essential part of a 2-stroke engine. Try posting a question. With just a little maintenance and TLC, a weed eater can keep running season after season. Technician: Curtis B., Technician replied 4 years ago. Their small, handheld design and powerful trimmer … You should see a strong spark between the tester’s terminals when the engine is cranking. Check the ratio of 2-cycle oil, which is 1 gallon of fuel to 3.2 ounces of oil. battery reads 18v dc across terminals. Common solutions for: Ryobi String trimmer won't start. The day after i went to use it again and noticed when i primed it, the bulb would not fill up with fuel, only a little... - Ryobi … Thriving Yard is a privately owned website. Ryobi petrol strimmer won't start? Share this conversation. My Ryobi CS26 Won't Start Starting a Ryobi CS26 Trimmer. Hi all, my 25cc Ryobi Petrol Strimmer (multi tool version) was running a week or so ago, died when it still had fuel and will no longer start. After that it idles great but only revs if I turn the choke on a little. It ran as expected. Whereas Auto-feed models do the thinking for you, releasing line each time the line trimmer’s trigger is released – while convenient, if your garden requires you to start and stop a lot, this can chew through line unnecessarily. If the trimmer still does not start, it could be clogged, and may need a new carb. Powerful, easy start… String Trimmer. Already ordered? RYOBI is the brand of choice for millions of homeowners and value-conscious professionals. Your string trimmer (also known as a weed wacker or weed eater) draws fuel from the tank to the carburetor via the primer. Show More. Thanks to its simple engine, it is easy to unflood a weed eater. I put a new spark plug in..have spark. Here are a few of the more common fuel issues that may be causing a problem: To solve fuel-related problems, proceed with these steps: Learn why ethanol can cause significant damage to gas-powered outdoor yard tools. Ask Your Own Small Engine Question. Follow these simple directions for reloading your trimmer head and get back to work sooner! Problems With Ryobi Trimmers. Using normal start procedures, it started right up, and I have run it for several hours since, using the straight and curved shaft trimmer heads, the 720r Vacuum/blower attachment, 10" pruner attachment, and the brush cutter. the shoulder strap was a little short so i stopped the engine, set down and loosened the strap. Ryobi string trimmer won't start. To determine if the spark plug is defective, use a spark plug tester. wouldn't start. Enter model number to search for the required part specific to your product, Browse our parts categories to select from a variety of parts for your product. Hedge Trimmer: Won't Start . Depending on the nature of your problem, and how new your trimmer is, you may have a manufacturing defect. If your gas weed eater won’t start, these are the most common causes and troubleshooting steps that should be taken. When we went to start it again an it won't start. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. Learn which plants thrive in your Hardiness Zone with our new interactive map! I have replaced the spark plug, cleaned it a little and even partly dismantled it before assembling it again but nothing changes. We started it up right of the box just fine. Similar Items. Any hints, tips? When you pull the starter rope, tabs extending from the pulley and cam should grab the hub on the engine, causing the engine to turn. You can determine if a spark is present by disconnecting the spark plug from the engine. Brand New. If you've tried a few times and it still won't start, and you smell gasoline, you've probably flooded it. Access your email, find thousands of high-quality videos, and get the latest news and information. To check for a damaged spark plug, you should: Assuming it isn’t cracked, it probably just needs a good cleaning. It allows fresh air (oxygen) to enter the combustion chamber. held it for a bit and still nada. But there are a few simple checks that you should make before taking it to a professional or tossing it in the trash. Inspect the spark plug for signs of wear or damage. held it for a bit and still nada. If the recoil pulley is broken or stuck, it won't be able to rewind the starter rope. Gas string trimmer won't start, flooded? If the carburetor is clogged, try cleaning it with carburetor cleaner. I have a 3.5hp Tecumseh push mower that just had a new carb kit installed. Grass Trimmers from Ryobi, manufacturers of innovative power tools. Wait about 10 minutes before you try again to give the gasoline time to evaporate. Gas weed eaters offer lots of power – unless they won’t start, that is. The mower will start, but as soon as I start going down hill, it wants to die out. Fuel related issues are the most common problems you will need to solve over the life of your weed eater. If your Ryobi CS26 trimmer won't start, the first thing to do is verify that you're using the correct starting procedure. Join Repair Clinic's VIP email list for 10% off, plus other discounts and tips! new carb. The battery is fully charged. Thriving Yard is an affiliate for companies including Amazon Associates and earn a commission on qualifying purchases. Then hit the start button. Start by removing the screws that hold the air filter in place, usually near the rear of the engine. Model RY28101.2years old. Ran it off an on for about 30 minutes. Remove the starter assembly and inspect it to determine if it is working properly. 2. The most common problem with Ryobi trimmers is that the engine becomes progressively more difficult to start. for Petes sake, It is only 3 years old. not sure why, gas lines seem good. For the best maintenance, you should clean the spark plug every season and after prolonged use (around 25 hours). The trimmer starts first go (even when it was new this machine did not start first go with Ruixing carb) and runs like a dream. Start doing it yourself with the confidence that comes with 100+ years of experience. The gasoline and oil have separated, preventing the engine from getting enough fuel. In this case, the possible issues are: If the problem involves a dirty spark plug, you can quickly solve it by cleaning it with a spray-on plug cleaner (source). Let’s have a look at how to identify, isolate, and solve the issue so that you can get back to work on your lawn. … If your gas weed eater is not starting, the most common causes are: Depending on what is preventing your weed eater from working correctly, troubleshooting is a fairly simple process. A few days ago it would just need more pulls to start when hot. First, check the level of fuel in the tank. At the same time, air filters ensure that no external and potentially damaging debris enters the engine while delivering a clean flow of oxygen. The Ryobi CS26 has three filters that can get clogged and prevent starting. It ran as expected. Sometimes, the cap itself may be stuck due to malfunction or inside tearing off. There are three possible scenarios that are causing this problem. Only my Stihl chain saw is any good. HOMELITE RYOBI 850108013 Genuine Ignition Module w/Sleeve Replaces Also Used ON RIDGID Troy-BILT Echo Powerstroke Workforce BLACKMAX 4.4 out of 5 stars 38 $16.49 $ 16 . How to Clean a Two-Cycle/Two-Stroke Engine Carburetor, Quickly Unflood A Trimmer Using NO Tools - Video, link to How to Keep Crabgrass Out of Flower Beds, link to 5 Tips for Creating Beautiful, Low-Maintenance Flower Beds, ethanol can cause significant damage to gas-powered outdoor yard tools, head-to-head comparison between Stihl and ECHO, Gas vs Electric: 6 Reasons To Use Battery-Powered Yard Tools, Echo GT-225 2 Cycle 21.2cc Curved Shaft Gas Trimmer, Ego 56-Volt Lith-ion Cordless Electric 15 in. I have a 17 year old Ryobi 720r, with the 31cc motor. The Homelite String Trimmer should be cleaned and serviced on a regular basis, following the … First off, I have an old computer Pentium 200 Pro. The trimmer starts first go (even when it was new this machine did not start first go with Ruixing carb) and runs like a dream. We have a Ryobi Cordless trimmer that has started to We have a Ryobi Cordless trimmer that has started to discharge line continuously - what can we do about it? When the trigger is depressed, a throttle wire opens a valve on the carburetor, allowing more fuel to flow in through the jets. It’s common to see black smoke resulting from the engine. Start new topic; Recommended Posts. The recoil starter pulley winds up the starter rope when the rope is not in use. If there is no spark, this indicates that the spark plug is defective and should be replaced. Wound too tightâ or even too looseâ one side of the trimmer line will get stuck in the trimmer head. #12 06-25-07, 10:01 AM repair_guy. I have the Ryobi 40V blower and trimmer and have experienced the same problem. Air filter problems can be solved quickly by cleaning or replacing the filter. ryobi-RBC254FSDSN-manual-1.pdf Published: 01-06-2016 Filesize: 1.26 MB ryobi-RBC254FSDSN-figure-1.pdf Line. JLA FORUMS | Classifieds | FOR SALE - Texas | FOR SALE - Austin, TX. I'm at a huge disadvantage asking questions on this subject-because I have very little info to go by. If you tried to fix any of these issues without knowing how to do it, the chances are that you kept trying to restart the engine. It’s often better to just replace these. Ich habe die Grundvariante mit dem kleinen Akku gewählt und bin völlig überrascht von der Leistung des Gerätes. SHOP PARTS. I have a whole bunch of 2 cycle junk . If cleaning the carburetor isn’t effective, rebuild or replace the entire carburetor. Fair enough. Bump-feed line trimmers replenish line when you tap the head on the grass while in motion - this is pretty fast, easy and convenient. What to Do When a Ryobi 4-Cycle Trimmer Won't Start; Tanaka Hedge Trimmer Starting Problem; HOMEPAGE HEALTH. Carburetors are one of the more common fuel-related issues for 2-stroke engines. He takes a practical approach to yard improvement and enjoys putting best practices and “golden rules of lawn care” to the test. Some of us think about purchasing a new chainsaw, but if you check the above issues, then 95% chance that your Chainsaw will start working. As a result, the engine won’t start. Not what you were looking for ? Inspect the spark plug for signs of wear or damage. WeldfabNeil. Recently replaced the fuel lines and purge bulb. It can be so frustrating when a string trimmer won’t crank and the truth is, there could be a lot of reasons why. I have a 17 year old Ryobi 720r, with the 31cc motor. Starting a Trimmer, Hedge Cutter, or Chain Saw Properly Rest the machine on the ground, clear of any debris. NOTE: The line will extend approximately ¼ in. Our repair and symptom guide can help you fix this problem and better identify what is causing it. Sun Sep 13 2020 10:06 pm Advertisements. it's missing the air filter. Model RY28101.2years old. If you are using the weed eater for the first time after several months, you should swap the old fuel for a new mixture. 600qm. Conventional string trimmer trimmer heads are time consuming and a pain to reload. Had a Shindaiwa trimmer, high end expensive junk. To remove any extra debris, proceed by scraping the spark plug with a knife. why would battery charger light stay green if battery is defective (only charges to 18 v)? A fouled spark plug won’t be able to deliver electric current from the ignition system, which is necessary to ignite the fuel in the combustion chamber of your weed eater. Visit Map → Home / Lawn; Ryobi Weed Eater Won't Run at Full Speed. While you can repair it at home in about 20 minutes, it’s not something I’d recommend doing unless you know your way around an engine. Many rewind springs can be replaced individually, but it may be easier to replace the whole rewind pulley and spring assembly. Replacing the fuel lines didn't clear the apparent blockage. Amazon has put together some great Home Holiday Guide Deals - save money and get your holiday shopping done! new fuel lines and fresh gas.No start. If it is empty or low, the weed eater will not start. It is responsible for controlling the engine’s speed and the ratio between fuel and air. What to Check When Your Brush Cutter Doesn't Start You go out to start your brush cutter, weed whacker, or string trimmer and it won't start. The carburetor might be clogged. Examples provided of tested products are actual products owned, tested, and used regularly by the author. If the recoil starter assembly is defective, the engine won't start. Last sunday i purchased a Ryobi 30cc RLT30CET line trimmer, this is the model with the electric start. Page 6: Operation English (Original Instructions) OPERATION Note: It is normal for smoke to be emitted from a new engine during and after ﬁ rst use. But, a string trimmer can also wear out quickly if not properly taken care of. Manual Details 30cc 2 Stroke Line Trimmer (TouchStart™) - RLT30CETG. The other only goes into the tank about maybe 1 inch or inch and a half at the top of gas … If you attempt to start it up too many times, this can also flood the engine of the grass line trimmer. Tool Junkie; Members; 359 549 posts; Occupation: Welder/fabricator; Report; Share; Posted March 24, 2016. Email. So after not being able to do achieve any kind of improvement I have ordered a genuine Walbro Carby from USA for around $45 which I think is better then stuffing around with rebuild kits that will not guarantee a good result. Just bought a new Ryobi straight shaft 4 Cycle S430 trimmer last weekend at Home Depot to replace my aging 1079r that did 8-9 years stirling service! 2. We can help you find the right part to replace. Product recommendations not personally owned are based on the author’s knowledge of the company, product, reliability, and reputation. We make fixing things easier! This ensures that the engine won't seize up after a lot of use during the warmer months. Discussion Starter • #1 • Aug 14, 2005. When the starter rope is pulled and released, the rewind spring recoils the starter rope onto the rewind pulley. Manual Details 25.4cc 2 Stroke Brushcutter - RBC254FSDSN. You won't find any thing there either. Ryobi 40V Charger Red And Green Lights Flashing Whether you have a Ryobi cordless mower, a pole saw or one of the many other tools available, a common problem with Ryobi batteries is when the charger shows green and red flashing lights. I haven't ran it in probably 8 months or so, and I should have known better. Curtis B., Technician. Keep holding the trigger while black smoke leaves the weed eater. Gas-powered engines can become flooded with fuel. Your Account. Aaron Green. Looked at the manual again an still no luck. first start worked as intended. Then hit the start button. Here are the most common reasons your Ryobi string trimmer won't start - and the parts & instructions to fix the problem yourself. 49 How do I repair this problem? This trimmer head will accommodate both .080 and .095 line. How to start a trimmer if it won't START by the pull string. But there is no need of replacing it. Rinse and squeeze it various times to get out all the remaining water and soap in the pores. Every spring a big bill to get it to run. Shop with confidence on eBay! Dry them by blowing it off with compressed air. This sticky fuel can clog up the carburetor and prevent the engine from starting. If the rewind spring is broken, the rope won’t be able to recoil onto the pulley. Premix unleaded gasoline with high-quality 2-stroke engine oil into an approved fuel container. These are inexpensive and easy to buy in your local DIY store. If the recoil starter pulley is broken, replace it. UPDATE- This is a response to your comments after 1/3 million views. WeldfabNeil 359 Posted March 24, 2016. Thanks! Brand new Ryobi 40 volt 4 amp battery and charger $100. 3,713 satisfied customers. item 2 Cordless String Trimmer Edger Weed Whacker Pivoting Head 40V Lithium-Ion Ryobi - Cordless … Ryobi string trimmer won't start. Ryobi cordless mower won't start. This allows for the piston and crankshaft to stay lubricated. Show Less. Wound too tightâ or even too looseâ one side of the trimmer line will get stuck in the trimmer head. It is a brand new carb and the fuel is fresh. Just bought a brand new ryobi push button start gas line trimmer. Cleaning Filters. Yet, if you have already checked the spark plug, air filter, carburetor, fuel tank, and unflooded the engine without a result, a quick visit to your repair shop may be needed. Clean the air filter with warm water and dish soap, Once cleaned, you can soak the filter in lukewarm water. New Member. Servicing the Spark Plug. Practice … Not all trimmer line spool sizes are the same, and this can really make a difference in how long the trimmer line will go without being replaced. wouldn't start. That’s the weed eater burning off the excess fuel. If your hedge trimmer does not start, check the following parts: the fuel lines, spark plug, switch, carb, fuel filter, and ignition module. But now it refuses to start warm. Then proceed by unscrewing the screws that hold the primer bubble in place. Gas string trimmer won't start, flooded? RYOBI specializes in making pro-featured power tools and outdoor products truly affordable. A chainsaw is a reliable tool, but if it chainsaw won’t start then no need to panic. ryobi-RLT30CETG-manual-1.pdf Published: 01-06-2016 Filesize: 2.04 MB Ryobi petrol strimmer won't start? A clogged carburetor is most commonly caused by leaving fuel in the string trimmer for a long period of time. Die Plastik-Trimmfähnchen nutzen sich normal ab, so dass realistisch nach jedem 600qm-Trimmvorgang ein … We carry more than 4 million parts from over 175 major brands, so chances are, we've got the part you need. same experience. Once you have opened your carburetor, you can clean it thoroughly and unclog the filter. But when you get right down to it, they have a simple two-stroke engine that you can troubleshoot with basic tools and a little DIY knowledge. So after not being able to do achieve any kind of improvement I have ordered a genuine Walbro Carby from USA for around $45 which I think is better then stuffing around with rebuild kits that will not guarantee a good result. If you are, then there are several places to look for possible problems. Read my head-to-head comparison between Stihl and ECHO, two of the largest manufacturers out there. This process of repeatedly pulling on the starter recoil while holding the throttle down allows the weed eater to get rid of any extra fuel that has filled the combustion chamber. Click here for Paul’s author page. Hi all, my 25cc Ryobi Petrol Strimmer (multi tool version) was running a week or so ago, died when it still had fuel and will no longer start. View and Download Ryobi RY28120 quick start manual online. In the meantime, though, do yourself a favor and use quality fuel. Started with the blower running at full speed after about 5 minutes of use. Your Account. Use a … If your carburetor is amiss, dirty, or cracked, your weed eater won’t work. Gas is brand new and my other power tools (mower, chipper/shredder) are running fine on the same gas. Wait about 10 minutes before you try again to give the gasoline time to evaporate. It can be so frustrating when a string trimmer won’t crank and the truth is, there could be a lot of reasons why. Add to cart. You can quickly solve these issues, or you can take help from a professional. Bumping the head to try to advance the line will damage the trimmer and void the warranty. Location: Marion,Al. To determine if the spark plug is defective, use a spark plug tester. In this case, I’d recommend just bringing it in for a professional servicing. Disconnect the lead and clean the surrounding area, Check the porcelain for cracks and scratches. 1-800-269-2609 24/7. The recoil starter assembly engages the crankshaft to turn over the engine. (Check your owner’s manual for your model’s requirement). Recently replaced the fuel lines and purge bulb. Also for: Ry28140. Reply. If you have tried to turn the engine on and it is not giving you any sign of life, the problem might lie in the spark plug. May sound like a stupid question but my cs 30 won't start and I drained the gas tank first. If your trimmer is not working and does not start, some of the following parts might be causing this problem: the ignition module, fuel filter, fuel lines, primer bulb, and carburetor. Many string trimmers require a 40:1 or 50:1 gas-to-oil ratio. see pictures. 40v ryobi trimmer: Depressing trigger does not cause trimmer head to turn and no sound. I have replaced the spark plug, cleaned it a little and even partly dismantled it before assembling it again but nothing changes. Paul has a two-acre yard on red clay soil in Southeast Texas. first start worked as intended. Also note whether after you have put a few drops of gas in the cylinder, and replaced the spark plug, it fires up for a little but does not run. Often after being stored over winter or just by luck of the draw, a gas-powered weed eater will need a little maintenance to work correctly again. If the porcelain insulator is cracked, an electrode is burned away or damaged, or there is heavy carbon buildup at the electrode, replace the spark plug. bought new rebuilt charger. Ran it off an on for about 30 minutes. Had the problem one time when I was using it for heavy trimming. It’s a fairly easy task and doesn’t require a lot of tools. We've got millions of parts, hundreds of brands, and thousands of step-by-step videos— everything you need to find it, fix it and finish the job right. This YouTube video from eReplacement Parts walks you through the process of cleaning the carburetor and has a lot of handy tips. You may be able to clean the carburetor without needing fresh gaskets but as a rule, it’s best to have an inexpensive rebuild kit like this one (link to Amazon) handy. RY28120 trimmer pdf manual download. Anyways ive assembled it, fueled it up, got the mixture right according to the manual using 100ml ryobi synthetic oil with 5L tin of shell regular unleaded, to make a 50:1 mix. Depending on your weed eater model, start by removing the filter cover and the filter.