Husqvarna chainsaw gas mixture ratio

Two-stroke oil • For the best results use HUSQVARNA two-stroke oil, which is especially developed for chain saws. Mixing ratio 1:50 (2%). • Never use two-stroke oil intended for …

Feb 25, 2022 · Husqvarna recommends a gas/oil mix ratio of 50:1. This means that for every 50 parts of fuel, there should be 1 part two-stroke engine oil — also known as two-cycle oil. Many times, a 1-gallon or 2 1/2-gallon gas can is used while mixing gasoline for small engines. A 1-gallon can requires 2 1/2 fluid ounces of two-stroke oil, while a 2 1/2 ... A Weed Eater two-cycle engine requires a mixture of gas and oil in the ratio of 40:1. To obtain this ratio, one gallon of gasoline should be mixed with 3.2 ounces of engine oil.You see gears in just about anything that has spinning parts — car engines, transmissions, electric toothbrushes... Learn what these gears are doing and get to the bottom of the "g...Precision in Measurement: Invest in the Right Tools. Accurate measurement is non-negotiable when it comes to preparing the Stihl Chainsaw Gas Mix. Invest in a measuring cup or mixing bottle with clear markings. This small investment pays off in the form of a precisely tuned chainsaw. 3. Fresh Fuel for Optimal Power.All STIHL gasoline-powered equipment uses a 50:1 gas and oil mixture. The 50 to 1 mix chart below can help you figure out the correct measurements to use. For high-performance fuel that requires no mixing, choose STIHL MotoMix® premixed fuel.What is the oil gas mixture for Husqvarna 141 chainsaw? The mix ratio is 50:1, but be sure to use a good 2 cycle oil such as Husqvarna's or Echo's. Do use a motor boat or motorcycle 2 cycle oil.chainsaw fuel/oil mixture question. I have a old (1960"s blue) Homelite chainsaw XL12 model. The gas/oil ratio on this saw calls for 16:1. that is 8oz of oil per gal. I guess they used regular motor oil back then to mix with the gas, smokes a lot with this mixture and fouls out the plug much faster. with the new fuel/oil mixtures they have ...

Mix the fuel mixture thoroughly before filling the machine’s fuel tank. Mix the correct ratio as specified by the manufacturer. To find the fuel mix ratio, please refer to the operator’s manual for your product. Fuel and oil mixture should always be 2% (50:1). We recommend that you use Husqvarna oil mixtures.Compa ratio is a formula used to assess the competitiveness of an employee’s pay. Learn how to calculate compa ratio. Human Resources | What is WRITTEN BY: Charlette Beasley Publis...The gas to oil ratio for Husqvarna chainsaws is 50:1. Mix 2.6 ounces of two-stroke engine oil per one gallon of gasoline for best performance. For Husqvarna …Luckily, there is a way to mix the gas that will make it easy and hassle-free. The correct ratio to mix chainsaw gas can either be 40:1 or 50:1 depending on your product manual. Mixing chainsaw gas can be a tricky process for those who are inexperienced. Step 1. The first thing you need to do when mixing your chainsaw gas is to use an approved ...Husqvarna Gas Chain Saw Instruction Manual. 142 chainsaw pdf manual download. Also for: 137. ... Husqvarna chainsaw user manual (19 pages) Chainsaw Husqvarna 136 / 141 Operator's Manual. Instruction manual ... S Keep the handles dry, clean, and free of oil or fuel mixture. S Keep fuel and oil caps, screws, ...View the Husqvarna 460 Rancher manual for free or ask your question to other Husqvarna 460 Rancher owners. ... what is the oil to gas mixture ratio for this chain saw. 4. Same question. Type your response here . D. ... The Husqvarna 460 Rancher is a chainsaw designed for heavy-duty cutting tasks.Poulan chainsaws require a 40:1 fuel-to-oil ratio. If you are calculating the amount in gallons, the ratio will be 3.2 fluid ounces of oil for 1 gallon of gas. In liters, you will have to add 25 mL of oil to 1 liter of gas. Increasing your chainsaw’s efficiency requires a proper fuel mixture.

445. For performance you can rely on, trust the Husqvarna 445. This robust gas saw features Smart Start® technology and air purge to deliver best-in-class starting performance.*. Our proprietary X-TORQ® engine delivers superior performance, increased fuel efficiency and low emissions. And the ergonomic design with LowVib® technology make ... All STIHL gasoline-powered equipment uses a 50:1 gas and oil mixture. The 50 to 1 mix chart below can help you figure out the correct measurements to use. For high-performance fuel that requires no mixing, choose STIHL MotoMix® premixed fuel. The fuel and oil mixture should always be 2% (50:1). We recommend that you use Husqvarna oil mixtures. Was this article helpful? Read more about. oil maintenance … 1,26/32 Following is a list of recommended cutting equipment for 2 500 the Husqvarna chain saw models 51 and 55. The 2,4/ 9 000 combinations of power head, bar and chain have been investigated in accordance with the kickback and vibration requirements of ANSI B 175.1–1991.

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Mix (agitate) the fuel mixture thoroughly before filling the machine’s fuel tank. Mix the correct ratio as specified by the manufacturer. To find the fuel mix ratio, please refer to your operator’s manual. The fuel and oil mixture should always be 2% (50:1). We recommend that you use Husqvarna oil mixtures.Page 18: Fuel Handling • Mix (shake) the fuel mixture thoroughly before filling the machine’s fuel tank. HUSQVARNA recommends the use of alkylate fuel or environmental fuel for four-stroke engines blended with • Do not mix more than one month’s supply of fuel at a two-stroke oil as set out below. Page 19: Fueling FUEL HANDLING Fueling ...Investors are always looking for tools to thin the thousands of available stocks down to manageable numbers for further research. The price to earnings to growth (PEG) ratio is wid...As a general guide to oil-to-fuel ratio, 50:1 is recommended in Husqvarna products up to and including 75 cc. In heavy use applications, ... One of the biggest benefits of using Stihl’s MotoMix is that it ensures the correct fuel mixture every time. When chainsaw operators manually mix two-stroke oil and petrol, ...Compa ratio is a formula used to assess the competitiveness of an employee’s pay. Learn how to calculate compa ratio. Human Resources | What is WRITTEN BY: Charlette Beasley Publis...

1,26/32 Following is a list of recommended cutting equipment for 2 500 the Husqvarna chain saw models 51 and 55. The 2,4/ 9 000 combinations of power head, bar and chain have been investigated in accordance with the kickback and vibration requirements of ANSI B 175.1–1991.Mixing ratio 1:50 (2%). Chain oil , Never use two-stroke oil intended for water cooled outboard , The chain lubrication engines, so-called, outboard oil. Page 27: Fuelling FUEL HANDLING Fuelling Clean around the fuel cap. Clean the fuel and chain oil tanks regularly. The fuel filter should be changed at least once a year.Sep 21, 2023 · What is the oil gas mixture for Husqvarna 141 chainsaw? The mix ratio is 50:1, but be sure to use a good 2 cycle oil such as Husqvarna's or Echo's. Do use a motor boat or motorcycle 2 cycle oil. Mix (agitate) the fuel mixture thoroughly before filling the machine’s fuel tank. Mix the correct ratio as specified by the manufacturer. To find the fuel mix ratio, please refer to your operator’s manual. The fuel and oil mixture should always be 2% (50:1). We recommend that you use Husqvarna oil mixtures.Subscribed. 1K. 477K views 12 years ago. If your Husqvarna chainsaw is run by a two stroke engine, it always needs to be fueled with a mixture of gasoline and two stroke oil. Follow these...With their Husqvarna 120 16” chainsaw, they are targeting the beginner or even the professional who wants to perform light tasks around their yards or gardens. ... The engine of this device utilizes a gas and oil mixture ratio of 33:1 or 50:1. This depends on the type of oil adopted.Here are the specifications for the Husqvarna 55 Rancher chainsaw with Imperial units in one column and Metric units in the second column: Specification. Imperial Units. Metric Units. Engine Type. 2-Stroke Gasoline. 2-Stroke Gasoline. Engine Displacement. 3.39 cubic inches.Sep 21, 2023 · What is the oil gas mixture for Husqvarna 141 chainsaw? The mix ratio is 50:1, but be sure to use a good 2 cycle oil such as Husqvarna's or Echo's. Do use a motor boat or motorcycle 2 cycle oil. Now, it’s time to know the gas-to-oil ratio for a Stihl chainsaw. You can mix the gasoline with 2 -stroke oil at a ratio of 50:1 mixture. However, the ratio is the same whether you mix unleaded petrol or gas with oil. If you choose the unleaded petrol or gas to mix with oil, put 50 parts of them and mix with a part of the oil in a non-spoiled ...As an experienced user and enthusiast of outdoor equipment, I had the opportunity to thoroughly test and evaluate the Husqvarna 450 Rancher 20-inch 50.2-cc 2-Cycle Gas Chainsaw. In this review, I’ll share my insights and expertise, providing you with a comprehensive overview to help you make an informed purchasing decision.Don't struggle any more with tracking down the right kind of gas and the right kind of oil and then mixing them together. Fuel up your tools with a single, ready-to-go mixture, Husqvarna's XP Pre-Mixed Fuel and Oil for Engines. This mix combines ethanol free, high octane fuel with high-quality synthetic blended oil in a 50:1 fuel to oil ratio.Market capitalization and price-to-earnings ratio describe the size and relative valuation of stocks, respectively. These measures are important because they can affect portfolio r...

Jun 2, 2020 ... Hello everyone, today I made a little different of a video than I normally would. Here is how to mix gas for a 2 stroke dirtbike!

What is the Stihl ms250 chainsaw gas oil mixture ratio? Updated: 9/18/2023. Wiki User. ∙ 12y ago. Best Answer. 50:1. Wiki User.High-performance professional 71cc chainsaw for heavy-duty forestry work. Tested in the world’s most rugged environments, the Husqvarna 572 XP® is ready for demanding work by forestry and tree care professionals. At just 14.5 lbs, the 572 XP® has a better power-to-weight ratio and 12% higher cutting capacity than previous Husqvarna models ...Choose one of the world’s most capable and legendary chainsaws. The Husqvarna 395 XP® is built for professional loggers and foresters. Excellent balance and a rugged handle design make this large saw easy to operate – even with longer guide bars. The aggressive clutch can handle the chainsaw’s substantial power, while a wider clutch ... 2 cycle gas fuel helps equipment owners to avoids costly rebuilds and downtime. Husqvarna oil gas mix is compatible with combi trimmers, chainsaws, brushcutters and forestry clearing saws. In addition to this 50:1 gas oil mix, Husqvarna offers a variety of lubricants and oil for all of your lawn care equipment needs The most common ratios are 50:1 and 40:1, but there may be variations depending on the specific chainsaw model. How to Mix Chainsaw Oil and Fuel. To mix …Chainsaw gas mix ratio. Many older chainsaw models require a 32:1 or 30:1 mix. Most newer models require a ratio of 40:1 (3.2 ounces of two-cycle engine oil per gallon of …Updated Feb 25, 2022. In This Article. Choosing the Fuel for a Husqvarna Chainsaw. Husqvarna Fuel Mix Ratio. Choosing the Right Two-Stroke Oil. How to Mix the Fuel. Husqvarna chainsaws use a two-stroke engine which is very different from a car engine.

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435. For quick and easy home maintenance, trust the Husqvarna 435. This robust gas saw features Smart Start® technology and air purge to deliver best-in-class starting performance.*. Our proprietary X-TORQ® engine delivers superior performance, increased fuel efficiency and low emissions. And LowVib® technology makes this saw comfortable to ... 40:1 mixtures require 3.2 fluid ounces of oil for every one gallon of gas. 2.5 gallons of gas need 8 ounces of oil while 5 gallons of gas will need 16 ounces of oil. Step By Step For Proper Gas Oil Mixture. If you want to mix chainsaw gas at home, it’s very simple to do as long as you keep a few things in mind.Learn how to mix gas and two stroke oil for your two stroke engine for your Husqvarna blower.Be sure to mix accurately. Never refuel while the blower is runn...445. For performance you can rely on, trust the Husqvarna 445. This robust gas saw features Smart Start® technology and air purge to deliver best-in-class starting performance.*. Our proprietary X-TORQ® engine delivers superior performance, increased fuel efficiency and low emissions. And the ergonomic design with LowVib® technology make ...Choose one of the world’s most capable and legendary chainsaws. The Husqvarna 395 XP® is built for professional loggers and foresters. Excellent balance and a rugged handle design make this large saw easy to operate – even with longer guide bars. The aggressive clutch can handle the chainsaw’s substantial power, while a wider clutch ... Husqvarna AB , SE-561 82 Huskvarna, Sweden, tel: +46-36-146500, declares under sole responsibility that the chain saws Husqvarna 235, 236 and 240 from 2009’s serial numbers and onwards (the year is clearly stated in plain text on the type plate with subsequent serial number), are in conformity with the requirements of the COUNCIL’S ... Husqvarna gas chainsaws are the best option when you want to get the job done quickly and with ease. Whether you are felling trees, chopping firewood or clearing ground we have a residential or professional chainsaw to meet your needs. Our robust and powerful gas chainsaws are equipped with an effective vibration damping system, LowVib, to help ...With their Husqvarna 120 16” chainsaw, they are targeting the beginner or even the professional who wants to perform light tasks around their yards or gardens. ... The engine of this device utilizes a gas and oil mixture ratio of 33:1 or 50:1. This depends on the type of oil adopted.Listen. Before filling up the gas tank, it is essential to know what the recommended Echo chainsaw fuel mix ratio is. The official recommendation of fuel ratio is 50:1 for Echo Chainsaws. Adding 50 parts of the gasoline with 1 part of the 2-stroke motor oil prepares the fuel for the 2-stroke engine. Worry not if you are a newbie, follow this ... ….

'Price is what you pay. Value is what you get.' -- Warren BuffettPutting his finger on this difference between price and value in stock investing is essentially what made ... © 202...Husqvarna FUEL HANDLING Models: 322 L 323L 325 L XT-Series 325C 325LD. 1. 36 ... the correct mixture ratio. Small discrepancies in the amount of. oil have a great bearing on the proportions of the fuel mixture. when mixing small amounts of fuel. 5. 10. 15. 20. 0,10. 0,20. 0,30. 0,40. Gasoline Oil. Fuel and oil The power plant of this chain saw is a twostroke engine, that is run on a petrol-and oil mixture of certain proportions ace. to the table. Do not use but a twostroke oil of high quality, e.g. Husqvarna Twostroke Oil, that is specially developed for chain saws. NOTE! No extra oil is needed inthe petro/ during What is the Stihl ms250 chainsaw gas oil mixture ratio? Updated: 9/18/2023. Wiki User. ∙ 12y ago. Best Answer. 50:1. Wiki User.Premium pre-mixed ethanol free gas means no more mixing oil and gas by hand. Unlike pump gasoline that degrades or oxidizes over time, Husqvarna gas oil mix stays fresh for years solving long-term storage needs. 50:1 fuel to oil ratio protects fuel systems and saves carburetors for easier and more dependable engine startschainsaw fuel/oil mixture question. I have a old (1960"s blue) Homelite chainsaw XL12 model. The gas/oil ratio on this saw calls for 16:1. that is 8oz of oil per gal. I guess they used regular motor oil back then to mix with the gas, smokes a lot with this mixture and fouls out the plug much faster. with the new fuel/oil mixtures they have ...450 Rancher. Blaze through any task with the Husqvarna 450 Rancher®. This robust gas saw features Smart Start® technology and air purge to deliver best-in-class starting performance.*. Our proprietary X-TORQ® engine delivers superior performance, increased fuel efficiency and low emissions. And the ergonomic design with LowVib® technology ...Husqvarna FUEL HANDLING Models: 322 L 323L 325 L XT-Series 325C 325LD. 1. 36 ... the correct mixture ratio. Small discrepancies in the amount of. oil have a great bearing on the proportions of the fuel mixture. when mixing small amounts of fuel. 5. 10. 15. 20. 0,10. 0,20. 0,30. 0,40. Gasoline Oil. Husqvarna chainsaw gas mixture ratio, This all-purpose chainsaw is ideal for landowners that demand optimal performance, easy starting, comfortable handling and superb safety. The 60.3cc X-Torq® engine delivers maximum power and torque over a wide RPM range with reduced emissions and fuel consumption. This saw combines technology and ergonomics to create a reliable chain …, A financial ratio measures the relationship between individual numbers on a company’s financial statements. An example of a financial ratio is the debt-to-equity ratio, which measu..., Jul 29, 2011 · Learn how to mix gas and two stroke oil for your two stroke engine for your Husqvarna blower.Be sure to mix accurately. Never refuel while the blower is runn... , The correct fuel mixture ratio for Husqvarna chainsaws is typically 50:1. This means mixing 2.6 ounces of 2-cycle oil with 1 gallon of gasoline. It is important to use a high-quality oil specifically designed for 2-cycle engines to ensure proper lubrication and performance of the chainsaw., Husqvarna Chainsaw Fuel Mix Ratio. All chainsaws from Husqvarna that are below or equivalent to 75cc use a common fuel-to-oil ratio. The ratio is 50:1. That means when you are using a gallon of fuel, you will have to mix 2.5 fluid ounces of oil into the fuel. For machines that are more than 75cc, it might require a 33:1 fuel-to-oil ratio., What’s The Correct Fuel Mix Ratio For Husqvarna Chainsaws? As per Husqvarna guidelines, the fuel/oil ratio should be 50:1 for all Husqvarna products …, Dec 7, 2023 · Precision in Measurement: Invest in the Right Tools. Accurate measurement is non-negotiable when it comes to preparing the Stihl Chainsaw Gas Mix. Invest in a measuring cup or mixing bottle with clear markings. This small investment pays off in the form of a precisely tuned chainsaw. 3. Fresh Fuel for Optimal Power. , Debt-to-Income Ratio Calculator I believe it does if you have a ton of arrears I do believe they can collect. And attach to your credit report. At least that's what's wrong with mi..., Husky Rancher 55 Construction. The Husqvarna 55 chainsaw combines die cast magnesium and injection moulded plastic parts in the motor housing. This achieves a weight of 5.2kg, which is light enough for general property maintenance. The robust magnesium crankcase, and three piece crankshaft design may add to the weight, but they make the saw ..., All Husqvarna chainsaws use the ratio of 50:1, this means that for every gallon of gas you will use 2.6 oz. of 2 stroke engine oil. How do you mix a 50/1 fuel chart? If your manufacturer recommends a 50:1 fuel/oil mix, it means you need 50 parts of gas to one part two-stroke oil., Husqvarna Gas Chain Saw Instruction Manual. 142 chainsaw pdf manual download. Also for: 137. ... Husqvarna chainsaw user manual (19 pages) Chainsaw Husqvarna 136 / 141 Operator's Manual. Instruction manual ... S Keep the handles dry, clean, and free of oil or fuel mixture. S Keep fuel and oil caps, screws, ..., The primary applications for the 3120 XP® are extreme logging, portable saw mills and stump work. This saw is designed to pull the chain on our longest bars-- up to six feet! Like all Husqvarna chainsaws, the 3120 XP® has a superior power-to-weight ratio. Thanks to Smart Start®, LowVib™ and other premium features, this heavy-duty chainsaw ..., This all-purpose chainsaw is ideal for landowners that demand optimal performance, easy starting, comfortable handling and superb safety. The 60.3cc X-Torq® engine delivers maximum power and torque over a wide RPM range with reduced emissions and fuel consumption. This saw combines technology and ergonomics to create a reliable chain …, Husqvarna 592 XP® is developed for professional forestry and tree care workers who demand the best in heavy-duty performance, reliable operation, and well-balanced maneuverability. Featuring AutoTune 3.0, this chainsaw starts easily and runs optimally in all conditions. The powerful X-Torq engine combined with the X-Cut C85/C83 chains delivers ..., Husqvarna engines are made to tighter tolerances and are designed to run cooler. This is why the manufacturer recommends running a 50:1 mix. A richer mix of oil (such as 40:1) will run in the trimmer, but it will make alot of smoke, foul the spark plug, and clog the spark arrestor in a short period of time. I recommend you stick with the 50:1 ..., Mix (agitate) the fuel mixture thoroughly before filling the machine’s fuel tank. Mix the correct ratio as specified by the manufacturer. To find the fuel mix ratio, please refer to your operator’s manual. The fuel and oil mixture should always be 2% (50:1). We recommend that you use Husqvarna oil mixtures. , 1 Fuel. 2 Starting and Stopping. 3 Carburettor Adjustment. 4 Needle Bearing Lubrication. 5 T Echnical Data. Download this manual. Oper ator ' s manual. 365 372XP. Please r ead the operator's manual carefully and make sure you understand the instructions., As an experienced user and enthusiast of outdoor equipment, I had the opportunity to thoroughly test and evaluate the Husqvarna 450 Rancher 20-inch 50.2-cc 2-Cycle Gas Chainsaw. In this review, I’ll share my insights and expertise, providing you with a comprehensive overview to help you make an informed purchasing decision., Mix (agitate) the fuel mixture thoroughly before filling the machine’s fuel tank. Mix the correct ratio as specified by the manufacturer. To find the fuel mix ratio, please refer to your operator’s manual. The fuel and oil mixture should always be 2% (50:1). We recommend that you use Husqvarna oil mixtures., The opposite of the dividend payout ratio, here's exactly how to calculate a company's plowback ratio. The opposite of the dividend payout ratio, a company&aposs plowback ratio is ..., The correct mixing ratio for your Husqvarna is detailed in your product’s owner’s manual. But as a general guide, a fuel-to-oil ratio of 50:1 is recommended for Husqvarna products up to and including 75cc. That comes out to 2.5 fluid ounces of oil per 1 gallon of gas. What is the fuel mixture for a Husqvarna 445 chainsaw?, Apr 13, 2015 · Before we begin, here is what you will need: Husqvarna Chainsaw (cooled, and shut off) 2.6oz. Bottle of Husqvarna’s 2 stroke oil (per 1 gallon of gasoline) Unleaded Gasoline 89 octane or higher. A clean, fuel approved container. A well ventilated area. A cloth (to wipe up any spillage) , Jul 22, 2022 ... Boat Oil in a Chainsaw? “You Can ... Correct Way To Mix Gas and Oil For a ChainSaw, WeedEater etc. ... Fuel Oil Husqvarna LS or XP ??? Garden and ..., The primary applications for the 3120 XP® are extreme logging, portable saw mills and stump work. This saw is designed to pull the chain on our longest bars-- up to six feet! Like all Husqvarna chainsaws, the 3120 XP® has a superior power-to-weight ratio. Thanks to Smart Start®, LowVib™ and other premium features, this heavy-duty chainsaw ..., For Husqvarna chainsaws, a fuel mix of 50:1 ratio, which means 50 parts gasoline to 1 part 2-stroke oil, is recommended. Use fresh, unleaded gas with a minimum octane rating of 89 and 2-stroke oil that meets or exceeds the JASO-MA or ISO-LEGD standards., Mix (agitate) the fuel mixture thoroughly before filling the machine’s fuel tank. Mix the correct ratio as specified by the manufacturer. To find the fuel mix ratio, please refer to your operator’s manual. The fuel and oil mixture should always be 2% (50:1). We recommend that you use Husqvarna oil mixtures. , Poulan chainsaws require a 40:1 fuel-to-oil ratio. If you are calculating the amount in gallons, the ratio will be 3.2 fluid ounces of oil for 1 gallon of gas. In liters, you will have to add 25 mL of oil to 1 liter of gas. Increasing your chainsaw’s efficiency requires a proper fuel mixture., Jul 22, 2022 ... Boat Oil in a Chainsaw? “You Can ... Correct Way To Mix Gas and Oil For a ChainSaw, WeedEater etc. ... Fuel Oil Husqvarna LS or XP ??? Garden and ..., P/E ratio, or price-to-earnings ratio, is a quick way to evaluate stocks. A good P/E ratio depends on the sector, but generally the lower, the better. Calculators Helpful Guides Co..., Jul 25, 2011 · If your Husqvarna chainsaw is run by a two stroke engine, it always needs to be fueled with a mixture of gasoline and two stroke oil. Follow these steps to mix two stroke oil and unleaded... , It can also cause complete failure due to engine damage. 2-cycle Husqvarna chainsaws use a gas and oil mixture at a ratio of 50:1. Husqvarna chainsaws require unleaded gasoline with a minimum octane rating of 89 and a maximum ethanol content of 10%. This gas is mixed with a 2-cycle premium oil that is ISO-L-EGD and JASO M345 FD certified. , 350 345 345 epa 340 e epa ii 350 (epa i) lib. View and Download Husqvarna 340 operator's manual online. CARB, EPA. 340 chainsaw pdf manual download. Also for: 350, 345, 345 epa, 340 e epa ii, 350 (epa i)., What is the fuel to gas mixture ratio of your husqvarna 435 chainsaw? 50-1 ratio most definitely. ... What is the oil to gas ratio for a chainsaw husqvarna special 42? The best mixture ratio for this model is 50:1. You can also get away with 40:1. What is the gas ratio for a husqvarna 445 chainsaw? The fuel mixture is 50:1.