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It is recommended that you never tamper with the high adjustment screw because it Common solutions for: Poulan Pro Chainsaw starts then stalls. There is a letter stamped next to every screw. If the chainsaw wont stop spinning when idling, its necessary to back it down. adjustments. Too lean adjustment can lead the chainsaw to bear failure and cylinder seizure. Genuine OEM Husqvarna Brand. If your engine is idling, even then it has to work. Sponsored. You need to make sure you rotate the screw far enough to stop the chain from turning. Then the low end occurs on the first trigger pull. What are the Carburetor adjustments on a poulan chainsaw. A: Poulan branded and Poulan Pro Burgundy chainsaws have a 1 year warranty against manufacturer's defects when used for Household purposes. Fit bottom of drive links between the teeth in the sprocket in the nose of the guide bar. Then start adjusting different parts of the carburetor including idle speed, high and low-speed adjustment, and fuel ratio. Prime the bulb. This sticky fuel can clog up the carburetor and cause the chainsaw engine to stall . If the spark arrestor is clogged, the chainsaw may run stall or run rough. Almost every chainsaw comes with three adjustment screws. To begin, adjust the idle speed. Mikuni Carburetor Service Manual WordPress com. This carb has a separate idle speed screw, but if the mixture isn't adjusted right it won't idle no matter what you do with the speed screw. Determine the low-speed jet (marked L on carburetor) and high-speed jet (marked H on carburetor) at first. For additional information, these are widely known as the idle speed screws that control the throttle valve. How to Adjust the Carburetor on an Eager Beaver Chainsaw, YouTube: How to Adjust Poulan Chainsaw Carburetor. Use tab to navigate through the menu items. I help my friends and neighbors with their tools. Rotate the screw labeled 'L' clockwise using a flat-head screwdriver until the end. The H mark on a chainsaw indicates its high-speed adjustment and the L mark talks about the low-speed adjustment. Yep a 40" tree, a hot day, maybe dull chain with a 40cc saw could be enough to smoke it. 1-1/4 turns out on both high and low screws from my experience. Thread starter jstutz; Start date May 24, 2016; Status Not open for further replies. and position chain saw so that any sharp. The upper butterfly can be sticky and stick open, preventing a start. $21.03. Now slowly turn the adjustment screw out and the engine should run better. But the most prevalent cause of this issue is improper carburetor [, 25 Best Deck Paint Colors and Combinations, How to Fill Cracks in Wood With Epoxy A Step-by-Step Guide. Using the special adjustment tool, seat both the low-speed (marked L on carburetor) and high-speed (marked H on carburetor) all the way closed. However, this should not be done. 1,311. Sawinery is a one-stop source for anything woodworking-related. Chainsaw . Now that you have the air filter clean, fresh fuel, and a good spark plug, you are ready to adjust the carburetor of your Poulan chainsaw. In some cases, it is necessary to adjust the idle speed screw, (marked T on the chainsaw cover), until the chain halts turning. ), link to Stihl 194t vs 201t - Everything About Their Comparison, Echo vs Husqvarna Chainsaw- A-Z Differences, https://www.youtube.com/watch?v=Cl8EICn1alM, poulan 2550 woodmaster chainsaw carburetor adjustment (https://www.youtube.com/watch?v=Cl8EICn1alM), Stihl 194t vs 201t Everything About Their Comparison, How Often to Sharpen Chainsaws Dont Overdo It. How to set up a carburetor on a chainsaw with the engine on: adjust idle speed with screw "T", turning counterclockwise until stable operation of the motor at idle speed; check the speed of the set of revolutions, with a leisurely spin, turn the screw L by 1/8 of a turn additionally; set the highest rotation speed on the tachometer with . Seat the low and high speed jets closed. Thread starter Billy Jack; Start date Mar 29, 2010; Help Support Arborist Forum: Billy Jack ArboristSite Guru. Too much density limiting air flow?). . Hello 1290451, Most carburetors will come from the factory with the correct adjustments. Remember to be safe and wear your long pants, safety glasses, and leather gloves for protection. When you enable the low adjustment by releasing the throttle trigger, the engine will die. PR5020. A stalling chainsaw engine can be caused by a few different scenarios. December 29, 2018 A Poulan chain saw carburetor has a single feature to adjust with a tool to increase or decrease the idle speed. With that information and suggestions, you can do really good professional work in a very short time. So if it works incorrectly, your chainsaw will run poorly as well. Then, take out the cover of the cylinder to access the spark arrestor located at the back of the muffler, and pull the arrestor out. The Definitive Answer, Is a Tsumura Chainsaw Bar Superior to A Stock Chainsaw Bar? 7. 33 ratings. When adjusting the carburetor, you need to place your Poulan chain saw on a flat level surface with the chain overhanging the surface, or move all items so it will not come into contact with anything. Jonsered 2077 ,2083 and Poulan Pro 415 Chainsaw Chainbrake Brake Handle Chainbrake brake handle . They can be bought from numerous retailers however are not promptly accessible from carburetor producers. Warm up the engine by starting it. If you set your chainsaw too lean and fast it can destroy your chainsaws engine. Next, adjust the saws low jet to the position where the saw chain stops moving while its throttle is still responsive. It happens when you can successfully idle down the engine, but the chain doesnt spin. Adjust low speed at idle . Pull the choke lever out to the full choke position and depress the primer bulb six times. It won't even try to idle. in cleaner Join as a Pro trying to do it without one and just search "poulan carb adjustment tool" for your model and spend the $9 right now. If required, replace the filter. however, the adjustment may be necessary when the carburetor of a poulan chainsaw has a single poulan pro pr5020 manual the poulan carburetor is usually set correctly from the factory. Screw both L and H down til they seat and back out 1 1/2 turns. The adjustment procedure of a Poulan chainsaw is fairly easy and straightforward. View and Download Poulan Pro PR5020 instruction manual online. The carburetor is set correctly at the factory, but adjustments can be necessary if the engine runs poorly, dies or runs at a high speed. Find the lean and rich points and stop at the medium point between them. I understand the need to promote your own certified dealers, but not for carburetor settings. Now adjust the high-speed jet to achieve maximum permissible RPMs at full throttle. In this case, the mixture should be leaner to prevent engine damage. The special carburetor adjustment tool for a Poulan chainsaw can be purchased HERE ON AMAZON. The last message is- dont forget to equip yourself with the necessary safety while dealing with a chainsaw. . Even if the idle, high and low-speed adjustment is okay, the chainsaw wont work for an inappropriate fuel mixture. Turn both the low-speed jet and high-speed jet closed using the special adjustment tool. Place your Poulan chainsaw on a flat surface before starting any operation. You've achieved the proper fuel mixture when the engine idles smoothly but the chain doesn't spin. Plug seems to be wet, so I'm thinking the setting is probably too rich, but I don't know the factory specs. No filter in saw, so I made one from a Briggs foam filter (I'm suspicious of this, since I cut it to fully fit the spot where the filter should be. Reed valve is okay. These tools are readily available on Amazon and are always in stock. However, the most common cause is an incorrectly adjusted carburetor. Fit chain drive links into bar groove. If you set the idle adjustment too low, the chainsaw will stop by itself slowly. Using the special adjustment tool, adjust the high-speed jet (marked H on carburetor) to the point where the engine archives maximum allowed RPMs as indicated in the owners manual. Ive worked with top interior designers and architects of the city. The low-speed jet is supplying too much fuel and not enough air. You must log in or register to reply here. Do this by turning the jets in a clockwise manner until you can't rotate them anymore. As soon as the chain starts to move, turn the screw counterclockwise until the engine idles without dying and the chain stops moving for the correct idle speed. How do you adjust the idle speed on a chainsaw? It may not display this or other websites correctly. With an experience of 11 years in this field, I can suggest the best tips for bigger DIYers. If required, replace the filter. It needs a new ring and it sounds like your saw also needs a new ring. I had TWO of the same carburetors, and used the best from each to make the best one I could (diaphragm and gasket carefully removed intact). Then back BOTH screws back out CCW one turn. You will need to purchase this special tool to make the . Old improperly mixed fuel can cause a chainsaw to run erratically affecting your adjustments. She loves writing about careers for busy families as well as family oriented planning, meals and activities for all ages. JavaScript is disabled. Cutting width. Adjusting the carburetor of a Poulan chainsaw can be done by just about anyone. I help my friends and neighbors with their tools. Passages cleaned. Once the baseline is set, adjust the low-speed screw until the chain stops turning at idle while the throttle remains responsive. I've tried turning both H and L . For a better experience, please enable JavaScript in your browser before proceeding. Apache/2.4.10 (Debian) Server at www.forestryforum.com Port 443 Are you trying to decide if a Tsumura chainsaw bar is the right choice for you and your chainsaw? Note: Different model Poulan chainsaws have different operating specifications in regards to idle speed and maximum allowed RPMs. The carburetor is set correctly at the factory, but adjustments can be necessary if the engine runs poorly, dies or runs at a high speed. Start the engine and allow it to run for five minutes to warm. Its 50 cc displacement enables it to provide the user with a maximum speed of 9000 RPM. Will a Tsumura chainsaw guide bar fit your Hello, My Name is Steven R, and Im here to help!My family has been in the chainsaw and outdoor power equipment business for over 35 years.We are as qualified as anyone regarding tips and how-tos on operating, maintaining, and repairing chainsaws and other power equipment.I hope you find the information you are seeking. Factory renewed to original condition Poulan Pro PP4218AVX is an 18", A carburetor engine with a displacement of 36. why did you take teh carb apart,,, what were teh problems? Turn the T-screw counterclockwise to slow the speed of the engine until the chain stops completely. It washes oil off the P&C and may cause scoring. Raise the turns slowly and its recommended to stop reaching at 1.5 turns. If engine bogs when advancing Brand New. Powerful Performance. Starting system: Easy starting system reduces effort needed by 30%. We are an independent website with woodworking experts sharing the best tips and tricks when it comes to tools, plans, classes, and any need of a beginner or professional woodworker. This sticky fuel can clog up the carburetor and cause the chainsaw engine to stall. If the chainsaw is accelerating slowly, its suffering from an insufficient fuel issue. NEVER SET THE SPEED OF YOUR CHAINSAWS ENGINE ABOVE THE MANUFACTURES SPECIFICATIONS. Fits Poulan Pro PP5020AV. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. If the adjustment is extremely lean, the engine will die too. A Poulan chainsaw carburetor is much easier to adjust if you have access to a Tachometer. Apart from that, other reasons include a bad gas mix and a dirty carburetor. Luckily, adjusting is not that tough if you know how to adjust a Poulan chainsaw carburetor properly. No Spam. However, Poulan chainsaws require a special adjustment tool that has splined teeth to set correctly. 11. To adjust the H and L or high and low-speed screws, follow the specifications of the manufacturer, and use a tachometer to measure the speed of the engine when rotating the screws. Just tune em like any other. If your Poulan chainsaw starts to act up, the first thing you have to do is to check the carburetor. Fix #1: Clean the Carburetor. The most common question I have been asked lately was how to adjust the carburetor on a Poulan chainsaw. If the idle is set to low the chainsaw will not idle and will die. If you turn the idle screw too far counterclockwise the chainsaw will die, so make sure you turn it just far enough for the chain to stop turning. What is the starting adjustments after repair for a Poulan Pro chainsaw modal #PP4218a? Make a note of the position of the screwdriver slot and compare it to the position of the lean adjustment. I specialize in restoring, repairing, designing, and decorating. Was: $20.37 17% off. Back off (turn CCW) screw about 1 turns. Poulan Pro PP5020AV 20" Bar 50cc Engine. Adjustments may be necessary if.. Jun 14, 2021 This carburetor will only fit the X-Torq chainsaws. Engines that run at too high of a speed can be destroyed or run inefficiently. When you have a large engine size, you will need greater displacement and power to run the chain. If it doesn't start, pull plug and see if it's wet with fuel. Closing the low and high-speed jets, Step 6. Using the special adjustment tool, open both the low-speed jet (marked L on carburetor) and high-speed jet (marked H on carburetor) 1.5 turns from closed. Open the low and high speed jets 1.5 turns. For first-time users, you surely want to know how to use Poulan chainsaws properly to avoid damage. With throttle still at full and engine warm, turn high screw Carb is pulling fuel from tank when cranked. - The Definitive Answer, link to Is a Tsumura Chainsaw Bar Superior to A Stock Chainsaw Bar? It'll start, but will not continue to run. By following some safety precautions, you can easily avoid the risks. Adjust the carb at full throttle / no load for just a little burrble / 4 stroking. Poulan chain saw instruction manual (22 pages) Chainsaw Poulan Pro 2300 AV Operator's Manual . . Walbro Carburetor Diagram WordPress com. chainsaw bars. They are typically . Modifying the H and L screws affects the throttle performance of the chainsaw, as well as the low and high-end engine speed RPMs. Adjusting the idle screw (Optional). At idle conditions, the adjustment should generate around 2800 3400 RPMs. Ensure that your chainsaw lies on a flat surface and you hang the Poulan chain over the edge. Then, take out the cover and air filter, and clean the latter using soap and water. Seems to me your carb is badly mis-adjusted, or something else is amiss.. High/Low carburetor adjustment and Idle screws allow the proper airflow through the engine. How Tight Should a Chainsaw Chain Be? Shop great deals on Poulan Carburetor Chainsaw Parts. This is done by turning both jets clockwise until they stop. You should see three screws, although two may be protected with plastic guards. Show More. Adjust low speed at idle . Poulan XXV/Craftsman 358.35504 Carb question, echo 301 341 346 carb and limiter caps question. For this, refer to the owners manual (or user manual). The high and low-speed adjustment is all about controlling the engine speed. Ensure that the connection is secured and the tool wont run accidentally. For a better experience, please enable JavaScript in your browser before proceeding. Apply the special adjustment tool so that you can set both jets all the way closed. so I started adjusting the L & H adjustment screws and now it won't start. When adjusting your chainsaw, be sure not to exceed the maximum allowed speed of idle and high-speed RPMs, as doing so can permanently damage your chainsaw. Instead of making the adjustment yourself, Poulan Pro chainsaw factory carb settings should be adjusted by an authorized technician who can do the job properly, using a tachometer. Dont Miss: Echo vs Husqvarna Chainsaw- A-Z Differences. $16.89. Start by understanding the mechanism of the carburetor. The carburetor is set correctly at the factory, but adjustments can be necessary if .. Take out the filter from your Poulan chainsaw. Then, the high end occurred when the speed of the chainsaws engine topped out. It may not display this or other websites correctly. You are using an out of date browser. The adjustment procedure will either lean out the fuel mixture by reducing the fuel and oil ratio to air or richen it by adding more gas and oil to the air mixture. After that, adjust the high-speeds jet screw to the position where its engine idles at the maximum RPMs allowed. Remember, if you set the idle screw too high, the saw chain moves continuously. The high and low-speed adjustment screws affect the chainsaws idling performance. Before the adjustment process starts, you need to get your chainsaw ready. This Dura Life engine has cylinders that are plated with chromium which makes it durable. Next, make sure to consider your safety. So it is a guessing game. The manufacturer doesn't recommend adjusting the low- and high-speed screws yourself, which is why the screws are protected with covers. His brainchild, Sawinery, allowed him to do so as well as connect with other craftsmen. In this situation, you need to lean out the low-speed screw counterclockwise. 3. Put some oil on the shaft and you are good to go. The idle of a chainsaw is affected by two different adjustments of the carburetor. lean mixture which will drastically shorten engine life! Youve achieved the proper fuel mixture. The ideal setting should be midway between these points. To get a true adjustment of the carburetor, all other options need to be in correct working order. - The Real Answer. The carburetor is located just behind the air filter, which is under a cover attached to the top of the engine. A lot of people asked on the internet- how to adjust the carburetor on a Poulan pro 42cc chainsaw? Remember, if you set the idle screw too high, the saw chain moves continuously. Cylinder displacement. If that doesn't work, try 2. Buy Poulan Pro Handheld Leaf Blower/Vacuum, 25cc 2-Cycle Gas, 450 CFM, 230 MPH, 967623001 at Tractor Supply Co. Poulan Leaf Blower Troubleshooting & Repair. Congratulations! So, the chainsaws engine will stop or stall if it cannot burn all of the gas. I have a poulan pro pp5020av chainsaw that won't start. It also has to work when you are trying to start the engine cold and the engine is wide open. Poulan chainsaw carburetor adjustment tool. There are several reasons why your chainsaw dies after filling it with gas. poulan pro factory carb settings, poulan chainsaw factory carb settings, poulan pro 42cc factory carb settings, . But if you set the idle speed screw too low, your, There are several reasons why your chainsaw dies after filling it with gas. Adjusting the Low and High screws controls the chainsaws throttle response, (low end), and high-end engine RPMs. This is done by turning both jets clockwise until they stop. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. The high end is when the chainsaws engine speed is topped out. . Keihin Fcr 39 Manual Pdf WordPress com. Remove anything that can get in the way of your chainsaw. The chainsaw carburetor works on the performance of its carb. With an experience of 11 years in this field, I can suggest the best tips for bigger DIYers. The saw was likely smoked by either a lean mixture, or an air leak. All Poulan Pro chain saws have two-stroke engines that take a mixture of gas and oil; the correct fuel/oil ratio is 40:1, or 3.2 ounces of oil per gallon of gasoline. The spark arrestor is a small screen that prevents the engine from emitting sparks. I have tried 1-2 full turns out on both H and L, but I can't find the proper setting. Your goal in painting your deck is to protect it from. Poulan wants to keep their ways & means a secret, but I know the information is out there. The Real Answer, How to Best Store a Chainsaw? The low-speed jet and the T-screw, (idle screw), both have an impact on the idling of the chainsaw. Despite that warning, it's usually safe to adjust the low-speed screw, although you'll have to pry off the cover to do it. Hook up fuel lines properly. I have also seen the intakes crack on those a time or two. The carburetor has been carefully set at the factory. Robert Johnson is a woodworker who takes joy in sharing his passion for creating to the rest of the world. With the use of a tachometer, seat the high-speed jet (with an "H" mark) and low-speed jet (with an "L" mark) on the carburetor closed. Follow the same manner of the low-speed adjustment for this operation. Messages. There are 2 screws marked L and H. On newer Poulan saws the Engine: OxyPower for higher efficiency. The Poulan PRO chainsaw tune up kit conveniently combines the most easy adjustments, this battery-powered chainsaw will help you get more done. You did it! 530-027218, 530027218, 27218. Before starting, you need to understand what is meant by H and L on the chainsaw. Also, if you have a tachometer, adjusting the carburetor on a Poulan saw will be significantly simpler. I just need an owners manual for a Poulan Pro PR65Y21MA wak. 1 1/2 allowed me to start and make needed adjustments. Poulan Pro PR5020: specs. Free . Never had an engine failure and I've never been happy with the factory settings. However, you will need a special adjustment tool to turn the adjustment screws. In the same way as a cars carburetor or any other small engine, the carburetor of a Poulan chain saw runs on fuel. The too-rich adjustment will cause the engine to load up and die at idle speed. Also, note the setting at which the engine functions normally and continuously. eHow may earn compensation through affiliate links in this story. Zama Carburetor. The low end is when the trigger is first pulled. In this case, the low-speed screw will need to be leaned out (turned counterclockwise). The saw should start in this position. A Poulan chain saw carburetor has a single feature to adjust with a tool to increase or decrease the idle speed. Congratulations! SERVICE MANUAL FOR POULAN - POULAN/PRO 33cc 34cc 36cc 40cc and 42cc 1900-1900LE-1950-1950LE-2050-2050LE-2055LE-2075 2075LE-2150-2150LE-2175-2175LE-2150-2150LE-2375 2375LE WILD THING-2250-2450-2550 POULAN PRO 220-221-221LE-260-260LE www.mymowerparts.com For Discount Poulan Poulan Pro Parts Call 606-678-9623 or 606-561-4983 The consent submitted will only be used for data processing originating from this website. of 20 17. Begin adjusting the carburetor on a Poulan chainsaw by undoing the retaining nut of the cover of the air filter by hand. The good thing is its fairly easy, but to adjust the carburetor, you will require a special tool. Take note, turning the idle speed screw too far will result in the saw to run inefficiently, or it will die. 5hp Briggs and Stratton. Most saws come already adjusted and need very little attention.. what is a poulan pro ppb4014? Any regular professional chain saw user will recommend against using a 20" bar on a 50cc saw, unless you have had yours ported and tuned by one of the many guys out there that can do magic on saws. Free shipping. Similarly, adjust the high-speed jet (marked H on carburetor) to the desired point. Read morehere. 01 - Poulan Pro Chainsaw Spark Arrestor. Using the special adjustment tool, seat both the low-speed (marked L on carburetor) and high-speed (marked H on carburetor) all the way closed. The carburetor regulates the fuel and air mixture ratio in the engine. Once the saw is running adjust the low-speed jet so that the chain stops or is as close to stopping as possible while still having a responsive throttle. So, all other parts must be properly functioning before making any carburetor adjustment. If the idle is set too high the chain will continue to move by itself. Adjustments need to be made to a carburetor when it dies after starting, is hard to start or dies under a load. object cannot accidentally cause injur y. . Fuel tank has pressure when gas cap loosened. The carburetor on a two-cycle engine that typically comes factory adjusted. If the engine does not operate continuously, rotate the screw marked T or the idle screw by one clockwise turn using a screwdriver with a slot. View large image. This 20 in. Adjusting a Poulan chainsaw carburetor does not require a bachelors degree or an authorized technician certificate or license. Carburetor Kit For Poulan Pro PP5020AV PP5020 PP5020AVX PP4818AV 50cc Chainsaw. $33.45. If the carburetor is clogged, try cleaning it with carburetor cleaner. To execute this step, you need to find the LA screw. current price $33.45. 50 cc, 2-cycle engine features Super Clean air filter system, aluminum Professional style clutch cover for more durability, automatic chain oiler, tool-less access to air filter and spark plug, reduced vibration handle with effortless pull starting system - purge and spring assist, a dual post chair brake for better safety and easier on the left side, and . If the chain saw sounds as if it is running too rich, it will rev at high speeds and make a high-pitched sound. throttle, turn low idle out as needed to eliminate bog. He has since built an enviable workshop for himself and an equally impressive online accomplishment: an extensive resource site serving old timers and novices alike. If the bulb isn't pumping fuel properly, it's more than likely a bad fuel line or the bulb is bad. All you need is a tachometer. When it comes to sharpening, an electric sharpener is absolutely the best choice. 24 years Factory Support Kawasaki Power Products & Small Engines. If you cant determine the exact point, use the point where the chain stops turning. It Needs the carburetor cleaned before it will run.. Sep 9, 2019 597 Answers. Do this by turning the jets in a clockwise manner until you cant rotate them anymore. If you set the idle adjustment too high, the chain will keep moving. Lets get a quick overview of them. Step 4: Warm the engine. Adjustments may be. Free Poulan P3314 manuals! The idle speed of your chainsaw is impacted by the two varying adjustments on its carburetor. Put a Bailey's 30lp chain on it. Clean the arrestors screen using a wire brush. Ive worked with top interior designers and architects of the city. 5. If you perform the opposite action, the centrifugal clutch will engage and the chain will run. . A Poulan chain saw carburetor has a single feature to adjust with a tool to increase or decrease the idle speed. The L and H adjustment screws on your chainsaw are for low-speed and high-speed carburetor adjustments. I have been part of the chainsaw and outdoor power equipment business in one way or the other for over 35 years. Well, the . Poulan Pro 40V battery chainsaws have a 4 year warranty. SOURCE: how to adjust Zama carb on poulan pro. You have successfully adjusted the idle speed of your chainsaw. It may not display this or other websites correctly. Keep turning the screw until the engine starts to load up. The L screw controls the air-fuel mixture of the low end of the chainsaws throttle response. It runs and cuts great has brand new blade on it and brand new carb and air filter. Wear protective equipment like goggles, hand gloves, helmets, and others. When it comes to chainsaw maintenance, one of the most important questions is, how tight should chainsaw chain be? Too little tension can cause excessive chain, sprocket, and bar nose wear and Is a Tsumura Chainsaw Bar Superior to A Stock Chainsaw Bar? Proudly created withWix.com. Items 1 - 30 of 60 Also for: Ztr 5424, Ztr estate 5020, Ztr estate 5424. If the engine runs sluggishly or stalls, you may have to change the amount of fuel the carburetor sprays into the combustion chamber; you do this by turning adjustment screws on the side of the carburetor. On the one hand, youll need to tweak the T-Screw if the low-speed jet adjustment does not allow the chain to stop entirely at idle. 386 sold. 0.025 inch (0.65 mm) Right. Begin adjusting the carburetor on a Poulan chainsaw by undoing the retaining nut of the cover of the air filter by hand. The air and oil mix is controlled by the L screw of the chainsaw throttles low-end response.