NOTE: Always cover vent hole in primer button when pushing. Additional priming may be necessary for first start if temperature is below 15 degrees Fahrenheit.

•Grasp starter handle and pull rope out slowly, until it pulls slightly harder. Let rope rewind slowly.

•Pull starter handle rapidly. Do not allow handle to snap back. Allow it to rewind slowly while keeping a firm hold on the starter handle.

•Repeat step above until engine starts.

•As engine warms up and begins to operate evenly, rotate choke knob slowly to OFF position. If engine falters, return to FULL choke, then slowly move to OFF position.

Electric Starter

The electric starter is equipped with a grounded three- wire power cord and plug, and is designed to operate on 120 volt AC household current.

WARNING: The electric starter must be used with a properly grounded three-prong receptacle at all times to avoid possibility of electric shock. Follow all instructions carefully to operate the electric starter.

•Determine that your house wiring is a three-wire grounded system. Ask a licensed electrician if you are not certain.

•If your home wiring system is not a three-wire grounded system, do not use this electric starter under any conditions.

•If your home electrical system is grounded, but a three-hole receptacle is not available, one should be installed by a licensed electrician before using the electric starter.

•If you have a grounded three-prong receptacle, proceed as follows.

•Rotate choke knob to OFF position.

•Connect power cord to switch box on engine. Plug the other end of power cord into a three-prong 120- volt, grounded, AC receptacle.

•Push starter button to crank engine. As you crank the engine, move choke knob to FULL choke position.

•When engine starts, release starter button, and move choke gradually to OFF. If engine falters, move choke immediately to FULL and then gradually to OFF.

•When disconnecting the power cord, always unplug from the three-prong receptacle first, and then from the snow thrower.

To Stop Engine

•To stop engine, remove the ignition key. Do not turn key. Disconnect the spark plug wire from the spark plug to prevent accidental starting while equipment is unattended.

To prevent starter freeze-up:

•Run engine for a few minutes before stopping to help dry off any moisture on the engine.

•Electric Starter: Connect power cord to switch box on engine, then to 120 volt AC receptacle. With the engine running, push starter button and spin the starter for several seconds. The unusual sound made by spinning the starter will not harm engine or starter. Disconnect the power cord from receptacle first, and then from switch box.

•Recoil Starter: With engine running, pull starter rope with a rapid, continuous full arm stroke three or four times. Pulling the starter rope will produce a loud clattering sound, which is not harmful to the engine or starter.

•Wipe all snow and moisture from the carburetor cover in the area of the control levers. Also, move control levers back and forth several times. Leave throttle control lever in the STOP or OFF position. Leave choke control in the FULL choke position.

•Remove ignition key and disconnect spark plug wire. Do not turn key.

IMPORTANT: Do not lose the ignition key. Keep it in a safe place. Engine will not start without the ignition key.

To Engage Drive

•With the engine running near top speed, move shift lever into one of the five FORWARD positions or two REVERSE positions. Select a speed appropriate for the snow conditions that exist. Use the slower speeds until you are familiar with the operation of the snow thrower.

•Squeeze the auger control and the augers will turn. Release it and the augers will stop.

•Squeeze traction control and the snow thrower will move. Release it and unit will stop. Never move shift lever without releasing traction control.

To Engage Augers

•To engage augers and start throwing snow, squeeze the auger control against the left handle. Release to stop the augers.

Auger Control Test

IMPORTANT: Perform the following test before operating the snow thrower for the first time and at the start of each winter season.

Check the adjustment of the auger control as follows:

•When the auger control is released and in the disengaged “up” position, the cable should have very little slack, but should NOT be tight.

WARNING: Do not over-tighten the cable. Over-tightening may prevent the auger from disengaging and compromise the safety of the snow thrower.

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MTD 31AE640F352 manual To Stop Engine, To Engage Drive, To Engage Augers
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31AE640F352 specifications

The MTD 31AE640F352 is a powerful and versatile engine designed for a variety of applications, particularly in the field of outdoor power equipment. Recognized for its reliability and performance, this engine is a perfect choice for lawn mowers, tillers, and other landscaping tools.

One of the standout features of the MTD 31AE640F352 is its robust construction. The engine utilizes a cast-iron cylinder sleeve, which not only enhances durability but also improves heat dissipation. This is crucial in maintaining optimal operating temperatures, especially during prolonged use. The engine's design is engineered for easy maintenance, making it user-friendly for both professionals and hobbyists.

The MTD 31AE640F352 is powered by a four-stroke engine, which contributes to its efficiency and fuel economy. With a displacement of 196cc, this engine provides ample power for a range of tasks while ensuring low emissions, adhering to environmental regulations. The engine's overhead valve (OHV) design allows for better airflow and greater combustion efficiency, resulting in improved torque and horsepower.

Additionally, the MTD 31AE640F352 features an integrated recoil starter and a primer bulb, which facilitate quick and effortless starting, even in cold conditions. This ensures that users can get to work without delays, maximizing productivity. The engine's air filtration system is designed to minimize dust and debris intake, prolonging the engine's lifespan and reducing maintenance frequency.

Another notable characteristic is the quiet operation of the MTD 31AE640F352, making it a suitable choice for residential areas where noise regulations may be a concern. The engine operates smoothly with reduced vibration, providing a comfortable experience for the user.

In terms of versatility, this engine can be found in various MTD products, showcasing its adaptability across different applications. Whether it’s powering a lawn mower or a snow blower, the MTD 31AE640F352 delivers consistent performance, meeting the needs of various outdoor tasks.

Overall, the MTD 31AE640F352 stands out in the engine market for its combination of power, efficiency, and user-friendly features. With its reliable performance and durable construction, it continues to be a preferred choice for numerous outdoor power equipment applications, catering to both residential and commercial users alike.
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