VIKING lawn mower carburetor. How to Clean a Lawn Mower Carburetor for Annual Maintenance

VIKING Lawn Mower Starts And Stalls Reasons

If at the first start-up, your new lawn mower refuses to start, try the following: based on the outdoor temperature, set the air damper to the appropriate position (at a temperature of less than 30 ° C. “the damper is closed”, above 30 ° C. the half-closed position), then pump it into the carburetor fuel and gently, but rather sharply pull the starter handle until you feel some resistance. Repeat these steps in the same sequence several times. A completely new tool should start. If this finally happened, you can safely get to work, having previously fully opened the shutter.

If the lawnmower is no longer new, then it is necessary to start its inspection from the gas tank. If the device has not been put into operation for a long time, then it is necessary to drain the old gasoline, which has the feature of “exhaling”, i.e. lose their octane properties, and pour fresh fuel mixture. The ratio of gasoline / fuel, as well as their necessary brands are usually indicated in the instruction manual of the tool.

Now you need to check the spark plug. either the problem is in it, or in the fuel system. The candle must be carefully unscrewed and its condition evaluated. If the candle is heavily filled or there is black soot on it, then it must be removed, cleaned and dried. Drain excess fuel, if any, from the spark plug holes, drain the cylinder itself, then screw in a dried or, even more desirable, a completely new candle. If the candle was initially completely dry, you need to look for a problem in the fuel supply system. First, check the fuel filter. To do this, disconnect the suction hose and remove the dirty filter from it, clean it and reinstall it, or replace it with a new one. If this does not help, you should contact the specialists of the service center.

Doesn’t start after winter

In this case, you just need to drain the old and, possibly, even frozen fuel and fill in the freshly prepared mixture. Then you need to perform the same manipulations as during the first start of the lawn mower.

Starts up and stalls

If the mower stalls after starting, check the air filter. When this filter is very clogged with dust, it ceases to allow the necessary amount of air to pass into the carburetor and allows dust to enter the fuel mixture. Carefully remove the contaminated filter, clean and rinse with gasoline. If the air filter is clean, and the tool stalls anyway, then it is better to contact professionals to determine the cause of the malfunction and to eliminate it.

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The VIKING lawnmower takes pride of place in a series of similar types of garden equipment from other eminent brands. It is easily recognizable by the corporate case of the color of young greenery and characteristic streamlined forms. The high quality of the device is guaranteed by the introduction of the latest technologies and the best materials used by the manufacturer, as well as assembly at Austrian plants.

The model range includes 8 series and more than 40 modifications, ranging from simple hand-held devices to robotic lawnmowers. By power and purpose, the units are divided into household and professional, by power source. into gasoline and electric (battery).

There are a number of features that combine all the modifications of the VIKING brand lawn mowers:

• particularly robust frame design that allows the device to be used in harsh conditions;
• large corrugated wheels that improve adhesion to the surface and at the same time cause minimal damage to the grass cover;
• knives made of steel of the highest quality and sharpened (the lawn trimmed with such knives does not turn yellow);
• low noise level (no more than 96 dB) and vibration;
• Ergonomic folding handle.

Petrol

A common negative characteristic of all lawnmowers is the lack of devices that reduce the amount of harmful emissions into the atmosphere. In addition, they are heavy in weight and expensive. But despite such shortcomings, their popularity among users is high. This is due to the high power of the units and their independence from the network or battery power.

MB 248

The VIKING MV 248 lawnmower is a non-self-propelled gardening tool that is classified as domestic and recommended by the manufacturer to care for a plot of no more than 1200 m² with dense grass. The unit is equipped with an easy-to-start four-stroke engine with a power of 1.9 kW and a volume of 125 cm³. The capacity of the fuel tank is 0.8 liters, oil. 0.47 liters.

The mower has a 7-step central mowing height adjustment that allows you to set the cut level from 25 to 75 mm. The working cutting width is 460 mm. The design provides the only option for the disposal of grass: accumulation in a rigid grass catcher with a volume of 55 liters. For the operator’s convenience, the grass catcher is equipped with a fill indicator.

Video: VIKING Lawn Mower Starts And Stalls Reasons

The unit has a robust steel casing. Rear wide and stable wheels equipped with profile tires provide good traction and hold the course, and double bearings increase the reliability and durability of the wheel system.

The cutting system is based on AFTech technology, which improves the quality of lawn mowing: when rotating, the knives create a powerful stream of air that raises the grass before mowing, and then sucks it into the grass catcher through the built-in duct.

MB 2RT

The VIKING MB 2RT self-propelled lawn mower with front-wheel drive belongs to the category of domestic and is recommended for work on areas of up to 1,500 m². Four-stroke engine power BriggsStratton is 3.72 kW (5 HP), volume. 190 cm³.

In addition to power, this modification differs from the previous one in the form of utilization of mowed grass. The BioClip function (mulching) allows you to process it by repeatedly grinding it into fertilizer. The design does not include lateral rejection of grass and accumulation in the grass catcher. The central lever, which has 4 positions, adjusts the cutting height from 23 to 77 mm, the mowing working width is 460 mm.

Other gasoline models

In addition to mulching lawn mowers and aggregates for medium lawns, the VIKING range includes a series of modifications designed for:

• processing areas with a large area (models MB 640T, MB 650V, MB 655V, MB 655G);
• mowing tall grass (model MB 6RH);
• professional use (model MB 756YS).

Models MB 640T, MB 650V, MB 655V, MB 655G are designed for processing plots with an area of ​​up to 2000 m². Their working mowing width varies from 480 to 530 mm, and height. from 30 to 85 mm. The grass catcher capacity is 70 liters.

Model MB 6RH is specially designed for mowing tall grass, for which it is equipped with an additional lawn roller. The unit has 3 wheels and moves at a maximum speed of 2.7 km / h. It is used for processing areas up to 2500 m². Cutting width is 530 mm, height can be adjusted from 55 to 150 mm.

VIKING MB 756YS is the only professional model manufactured by the manufacturer. It is equipped with a four-stroke engine with a volume of 179 cm² (4.5 HP) and is designed to care for a lawn with an area of ​​more than 3000 m². Cutting width is 540 mm. Grass accumulates in a soft grass catcher.

Electric

Electric lawn mowers have their own advantages and disadvantages. The advantages include:

• environmental friendliness;
• low noise level;
• lightness and maneuverability;
• unpretentiousness in operation (for example, it is not necessary to constantly monitor the oil level).

• dependence on the power source;
• low power;
• shorter service life;
• inability to work with wet grass;
• the need to interrupt operation every 20 minutes to cool the engine;
• cord reaching for the operator or lying on the grass, reducing the safety of the unit.

The most popular VIKING brand mowers are the ME 235 and ME 340.

Both models are characterized by low power (1.2 kW and 0.9 kW, respectively) and weight (13 kg and 12 kg, respectively) and are designed to care for a site with an area of ​​not more than 600 m². The mowing width for both models is 330 mm, and the grass catcher volume in the first model is 30 l, in the second. 26 l. The functions of throwing grass to the side and mulching are not provided.

• durable polymer case, covered with a special sunscreen composition, additionally protecting the engine from overheating;
• wide wheels with branded double bearings;
• grass catcher fill indicator;
• a central system for adjusting the cutting height (the ME 235 model has 5 steps that allow you to set the cut height from 25 to 65 cm, and the ME 340 model has 4 steps with a cut range from 25 to 57 cm);
• cable protection system against tension.

Rechargeable

The popularity of cordless lawn mowers is growing every year, and after it the model range of this type of garden tools is expanding. Units have gasoline and electric (mains powered) advantages over lawn mowers, such as:

Among the battery modifications of the VIKING lawnmowers, the most popular is the VIKING MA 339. The manufacturer recommended it to work on sites up to 600 m² and has the following technical characteristics:

• engine power is 0.6 kW;
• working width of mowing. 370 mm;
• cutting height varies from 30 to 70 mm and is regulated by a central lever having 5 levels;
• the volume of a rigid grass catcher equipped with a fill indicator is 40 liters.

The body of the lawn mower is made of durable plastic and is equipped with a folding handle. An important technical feature is the universal battery, which can be used for other units of the VIKING or STIHL brands (for example, chainsaws, trimmers, brush cutters, etc.).

Service and Repair

For a lawn mower to work long and well, you must:

• carefully observe the operating conditions;
• regularly clean the mechanisms and components of the unit;
• at least 1 time per year to conduct its inspection in a specialized center;
• properly prepare the mechanism for wintering (fuel must be drained and the air filter washed or replaced with a new one).

Repair of VIKING lawnmowers as well as trimmers is best done at service centers, as replacement and adjustment of many high-tech parts and assemblies require special knowledge and compliance with removal and installation technologies. However, some simple malfunctions can be fixed by yourself:

• If a rattle appeared in a gas mower, then the bolts may have loosened. They should be pulled up.
• If during operation the unit began to vibrate, then it is necessary to check the condition of the knives and the density of their fastening.
• A whistle during operation may mean that a foreign object has fallen into the aerator. It must be deleted.
• If the wheels stop during operation, change the belt.

Also, specialist assistance is not required if necessary:

But there is a whole list of typical breakdowns in which only professionals should repair VIKING lawn mowers. Contact a service center if:

• the mower does not start or a spark does not form. The reasons may be:
• malfunctioning spark plugs or ignition coils;
• starter damage;
• clogged fuel system.
• The mower stalls. Reasons may include:
• in the misregistration of the carburetor;
• in the wear of the cylinder-piston group.
• The unit does not go. The reasons may be:
• worn gears of drive wheels;
• damage to the drive gear;
• problems with the drive belt.
• The mower does not turn on. Reasons may include:
• in a malfunction of the switch or motor;
• in damage to the power cable.
• The mower does not rotate the knife. The causes of failure can be:
• knife damage;
• motor faults.

Reviews and prices

Alexei, 38 years old, Krasnodar: “I chose a lawn mower to handle a small area of ​​irregular shape with many small flower beds and flower beds. I decided to purchase a branded unit, so as not to change every year. He chose the VIKING MB 248, although the for lawn mowers of this brand are high. I paid 28,000 rubles, but the tool was worth it: it is easy to start, mows evenly and cleanly, and most importantly, not a single failure for 3 seasons. ”

Mikhail, 43 years old, Orel: “We bought a VIKING ME 340 mower to care for a small area. The unit is good: lightweight, comfortable, no noise, mowing normally. The main drawback is the cord: you need to constantly monitor so as not to run into it, and this is very annoying. We’re thinking of changing this model to a rechargeable one. ”

Knowing how to locate and clean the carburetor on your lawn mower can keep it running smoothly for years to come.

By Timothy Dale | Updated Jun 3, 2022 11:19 AM

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A common problem encountered by many homeowners is finding that their lawn mower engine won’t start when they try to mow after a long winter season. This can be a sign that your mower’s carburetor is gummed up or even corroded, so it’s important to perform annual maintenance at the beginning of the mowing season to address any problems that could have been created over a long period of disuse.

Other signs of a dirty or restricted carburetor include the engine starting but stalling during use, the muffler emitting black smoke, a significant increase in fuel consumption, or the engine running rough during regular use. Keep reading to find out how to clean a lawn mower carburetor, as well as how to diagnose if you need lawn mower carburetor cleaner or more involved carburetor repair.

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• Needle-nose pliers
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• Compressed air

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BEFORE YOU BEGIN

In the event a dirty carburetor isn’t the reason your lawn mower won’t start, it’s important to first make sure something else isn’t causing the issue. Double-check that there’s fuel in the tank, the fuel valve is on, and the spark plug is in decent condition before spraying aerosol lubricant or carburetor cleaner into the throat of the carburetor. After spraying the carb cleaner, attempt to start the engine. If the engine runs at all, then the issue is with the fuel system. If the engine refuses to start after several tries, however, then the problem may be more serious. In that case, take your mower to a small engine repair shop.

STEP 1: Clean the outside of the lawn mower engine.

The purpose of learning how to clean a carburetor on a lawn mower is to remove any dirt and debris that could be causing the engine to run rough, so begin the lawn mower carburetor cleaning process by cleaning the outside of the engine while it is turned off. This makes it easier to keep the internal parts of the carburetor clean during disassembly.

Also, it’s necessary to take the time to clean your work area, which should be well-lit to avoid losing any small parts while you work. Have a clear space on your workbench where you can disassemble, clean, repair, and reassemble the various parts of the carburetor.

STEP 2: Remove the air filter to access the carburetor.

In order to access the carburetor in your lawn mower, you need to remove the air filter housing. The air filter typically sits overtop of the carburetor. Inspect the air filter to determine if it’s attached with clips or screws, then use a screwdriver to loosen the fasteners and place them in a safe location for reinstallation. Next, remove the air filter. It’s a good idea to inspect the air filter and either clean or replace it if necessary. If you have difficulty removing the air filter, you should be able to find detailed information in your lawn mower’s manual to help with this part of the process.

STEP 3: Remove the carburetor.

Wearing durable gloves for skin protection, use a carburetor cleaner for lawn mowers to spray into the throat of the carburetor or clean the part’s exterior. To clean the internal pieces of the carburetor, though, you will need to remove it entirely from the engine. Use a nut driver or socket set to remove the two bolts that hold the carburetor to the engine, then disconnect the throttle and choke linkage cables from the carburetor.

Make sure to place any fasteners or small pieces in a safe location for reinstallation, and note (or photograph) the location of any cables or hoses so you can put them back in the proper place. Prepare a bucket or bowl to catch the fuel before removing the fuel lines from the nipples of the carburetor housing with needle-nose pliers. If no gas comes out of the fuel line, you may have a plugged fuel line or fuel filter, which will have to be addressed before reassembling the lawn mower.

Once the carburetor is disconnected, pull it off of the mounting studs, taking care to avoid damage to the main gasket between the carburetor and the engine. Also, make a note of the position of the carburetor so that you don’t reinstall it upside down. Place the carburetor in a bucket to allow any fuel to drain.

STEP 4: Disassemble the carburetor.

A key reminder before disassembling your carburetor is that every piece you remove needs to be put back in the same position. Prepare an appropriate place to disassemble the carburetor if you haven’t already, and consider taking pictures while you work to prevent confusion during reassembly.

With the carburetor in the middle of your clean work area and while wearing gloves, start the disassembly process by cleaning around the bowl with a carburetor cleaner. Next, unbolt the fuel bowl and ensure the hole in the nut is clear of any obstructions by poking a paper clip or piece of thin wire through it. Then, remove the float, which should be attached to the carburetor with a hinge pin, and also remove and replace the needle, if necessary. Keep all of the parts grouped together.

STEP 5: Replace any worn-out parts.

Even the best carburetor cleaner cannot repair worn-out parts. Should you spot significant wear and tear on any parts, including the float, pin, needle, or gaskets, then you should get a carburetor repair kit for your specific carburetor to make necessary repairs. Some carburetor parts, like gaskets, wear out more quickly than other parts. When planning your annual carburetor cleaning, it’s recommended to have spare parts ready on hand to avoid taking the carburetor apart more than once. Simultaneously replacing the mower air filter also helps to streamline the maintenance process.

STEP 6: Clean the carburetor and carburetor parts.

With the carburetor disassembled and your gloves on, you will be able to spray carburetor cleaner inside the carburetor housing and clean the various parts. Carb cleaners come in aerosol cans that are great for quick, efficient cleaning, but you can also purchase carburetor cleaner in a bottle or jug.

If you prefer to use a liquid carburetor cleaner over a spray cleaner, then you will need to pour the cleaner into an empty bucket where the parts can soak. Wire the larger parts of the carburetor together, then carefully lower them into a bucket filled with carb cleaner. Use a piece of aluminum screen or a fine-mesh basket to wrap the small pieces of the carburetor before placing them in the bucket, as well. Leave the parts to soak for about an hour before removing them from the cleaning solution.

STEP 7: Reassemble the carburetor.

Rinse the carburetor parts with water to remove excess carburetor cleaner. Then, blow dry the parts with compressed air or let them air dry. It’s essential that the parts are completely dry before reassembly.

When you’re confident that the carburetor parts are dry, you can begin putting the carburetor back together. Use any pictures you took during disassembly to ensure that you are correctly reassembling the parts.

Once the carburetor is reassembled, mount it on the lawn mower, reattach the throttle and choke linkage cables, and reinstall the fuel lines. Fasten the bolts on the carburetor and reattach the air filter to the mower.

STEP 8: Test the lawn mower.

After you have reassembled and reinstalled the carburetor and air filter, add fuel to the gas tank and start the lawn mower to ensure that the maintenance was a success. Ideally, cleaning the carburetor should allow the engine to start up easily, but if you continue to experience problems with starting your mower, take the lawn mower to a small engine repair shop for further diagnosis.

Final Thoughts

To get the longest life possible out of your mower, it’s necessary to perform regular maintenance throughout the year. This includes cleaning the carburetor at the beginning of the mowing season, winterizing your lawn mower at the end of the mowing season, and changing oil, replacing spark plugs, and sharpening blades as needed. If you neglect regular mower maintenance, it may break down in a relatively short period of time, costing you more in expensive repairs.

How to Repair a Lawn Mower Pull Cord

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Introduction

Replace a broken starter rope on your lawn mower quickly and easily by following this simple step-by-step procedure.

Materials Required

You tug one last time to get the lawn mower started, and suddenly the pull cord breaks and the end goes spinning into the hole. Don’t blow a gasket. If you have even a tinge of mechanical aptitude, replacing a starter rope is pretty easy. If the spring breaks—a rare event, according to our repair expert—the fix is a lot harder, and we recommend you take the mower to a repair center.

Stuck Cord or Broken Cord?

First, check to confirm that the cord is actually broken and not just stuck. If it’s stuck, it may be an easier fix than full pull cord replacement and you likely won’t have to buy any new parts. Here are a few tips for fixing an electrical cord.

Run through your troubleshooting checklist if your cord isn’t working. Check to ensure the brake is off, make sure there isn’t any lawn debris clogging the blade, and finally, if all else fails, use our steps below to open the rewind unit. There, you’ll be able to see if the cord is stuck or fully broken.

What to Know About Replacement Cords

Different lawn mowers need different types of pull cords. If you don’t have time to spend looking for the right match, you can opt to get the thinnest kind, which will fit no matter what. But the thinner the cord, the more likely it is to break again soon. If you don’t already have replacement cord on hand, go to your local hardware store with the broken cord. The associates there should be able to help you get the exact kind you need.

Where is the carburetor on a lawn mower?

Learn where is the carburetor on a lawn mower so you can maintain the performance of your mowing machine.

Time for some mower maintenance? If your machine hasn’t been running reliably, you might need to figure out where is the carburetor on a lawn mower to see if it needs cleaning. A dirty carburetor can cause a variety of problems – like issues starting the mower or the engine stalling when in use. So, if cutting the grass has become even more of a chore thanks to a faulty lawn mower, checking the carburetor is a good place to start.

Learning how to maintain and repair your garden equipment is a great way to save money, as you won’t have to buy replacements as often. The best lawn mowers can last many years with regular maintenance, which also helps reduce the number of machines that go to waste when they could be repaired. Whether you use the best riding lawn mowers or a walk-behind mower to look after your lawn, this guide explains how to find, clean, and safely maintain the carburetor so your machine always runs like a dream.

Where is the carburetor on a lawn mower?

The carburetor is an essential component of a gas-powered lawn mower engine. In simple terms, it ensures that the correct balance of fuel and air enters the engine cylinder, where it will be ignited by the spark plug, combust, and make the engine work.

On a push or walk-behind mower, the carburetor is usually located on the side or top of the engine, just behind the air filter and above the base of the mower. You’re looking for a silver and black component, made mostly of metal. It’s likely it will be hidden by the air filter, which the carburetor is connected to. To find the air filter, look for a square or round plastic filter cover. This opens to allow access to the air filter, which sits in a plastic housing. You’ll need to remove the filter, then unbolt the housing to reveal the carburetor.

On a riding mower, the carburetor is generally found on the side or top of the engine. Like on a push mower, it will typically be behind the air filter, so you’ll have to remove the air filter and filter housing to access the carburetor, which is connected by a fuel line to the gas tank.

If in doubt, one of the best ways to find where is the carburetor on a lawn mower is to check the owner’s manual, as the location of the carburetor can vary depending on the model or manufacturer.

What is the importance of a carburetor on a lawn mower?

The carburetor is an essential component of any lawn mower engine, as Tom Monson, CEO of Monson Lawn Landscaping, explains: “The carburetor on a lawn mower mixes air and fuel in the proper ratio for the engine to run efficiently and effectively.” As you mow your lawn, the carburetor adjusts the combination of fuel and air depending on how long the engine has been running, your speed, and the type of terrain. This ensures that you get the best performance out of your mower.

A clean carburetor that’s in good condition will keep your lawn mower running reliably and efficiently, which is why carburetor maintenance is an essential part of taking care of your mower. The most important thing is to keep the carburetor clean, because even if the engine is running, a dirty carburetor can still cause problems.

Signs of an issue with the carburetor

Because the carburetor on a lawn mower is usually hidden behind the air filter, you might not notice if it’s dirty. However, if you experience any of the following when cutting your grass, it could be a sign that the carburetor needs a clean;

Problems starting the engine. You may have to pull the starter rope multiple times to get the engine running on your push mower, or turn the ignition more than once on your riding mower.

Engine stalling. Once the mower is running, you might find that the engine stalls, either immediately after starting or while you are mowing the lawn.

Spluttering and shaking. A dirty carburetor might cause the engine to sputter or shake while it’s running, making it more difficult to maneuver the machine.

Increased fuel consumption. Despite mowing the lawn as you usually do, you might notice that your mower is using more fuel. This is a common sign that the engine isn’t running as efficiently, which could indicate an issue with the carburetor.

How to clean and maintain the carburetor

To get the best out of your lawn mower, you should clean the carburetor once a year. Once you’ve figured out where is the carburetor on a lawn mower like the one you have, you can remove the carburetor ready for cleaning. Follow these steps to do it yourself at home, keeping the owner’s manual for your mower nearby for reference;

Clean the machine

Clean the outside of the engine first to remove any dirt that could contaminate your newly-cleaned carburetor. Make sure you have a clear, clean work area where you won’t lose any small parts.

Remove the air filter

Open or remove the air filter cover, then remove the air filter and the filter housing.

Turn off the fuel valve

Where possible, turn off the fuel valve. Alternatively, crimp the fuel line using a clamp or crimping tool to prevent fuel leaking while you work. Some fuel will still spill out, so keep a cloth or rag handy.

Unfasten the carburetor

Remove the carburetor by unfastening the bolts that hold it to the engine and disconnecting the throttle and choke linkage cables.

Pay attention to the details

Make a note of where cables and bolts are positioned so you can replace them later. Keep any fasteners or small parts safe.

Remove the careburetor

Remove the carburetor from the mounting studs, noting its position so you don’t reinstall it the wrong way up.

Start to disassemble

Carefully disassemble the carburetor, using a carburetor cleaner spray or WD-40 to clean as you go. Ryan Farley, CEO of LawnStarter, recommends using a cleaner designed for small engines. “These are formulated to remove dirt, debris, and built-up varnish and gum deposits from the carburetor without damaging any delicate parts”.

Get rid of rust

Remove any signs of rust using sandpaper.

Allow it to air dry

Allow the carburetor to dry, before putting it back together.

Reattach the carburetor

Replace the carburetor on the mounting studs, reconnect the linkage cables, and reinstall the air filter, cover, and housing.

Safety tips for maintaining the carburetor

Keep these tips in mind to safely maintain the carburetor on your lawn mower;

Although it’s possible to remove and clean a carburetor yourself, it’s a dirty, fiddly job that you might want to leave to the professionals. Your local small engine repair shop should be able to help.

If you do decide to clean your own carburetor, always wear gloves and cover your work area to protect it from damage or debris, including fuel spillages.

After cleaning your carburetor, you might find that your mower still doesn’t work reliably, which may mean that the carburetor or another part needs replacing. Again, it’s possible to fit a new carburetor yourself, but you may want to get some advice from a repair shop first.

If you’re up for trying a DIY lawn mower repair, replacing the entire carburetor is usually simpler and more cost-effective than replacing individual gaskets or small parts.