Features of Briggs & Stratton engines for motoblocks

The engine is the main part of any motor equipment. The American company Briggs & Stratton is famous for a variety of unique models that are distinguished by their small size, versatility, and durability. An important factor is constant updating and modernization. Products of this brand have managed to fall in love with Russian buyers for their ease of use.

This motor model is equipped with a horizontal shaft for general use. The manufacturer guarantees high efficiency of work, as well as reliability, strength, durability through the use of high quality raw materials. The device handles heavy loads without having to take a break.

The engine for walk-behind tractors is endowed with an air filter, to which a replaceable cartridge is attached, and it, in turn, is equipped with a foam pre-cleaner (it is also called a double filter element). Such a part acts as a protection against dust, sand, stones that come along with the air. After all, engine clogging is a common cause of device breakdowns.

Cast iron is used for the manufacture of the main parts. This material significantly increases the strength, performance of the carburetor. Thus, the risk of rapid wear of the walk-behind tractor is reduced. Plus, oil control is improved, which is necessary for full-fledged activities.

In this model, the valves are located at the top. First of all, this affects the increase in the service life of the device, and also has a positive effect on fuel economy. The same indicators are influenced by other spare parts - bearings. In the XR750 they are double ball bearings.

The mechanical type of the regulator allows you to change the speed - so, it will turn out to develop the power to the maximum indicators, which is necessary for intensive work.

General characteristics:

• the highest torque - 10.17 Nm;
• working volume - 163 cubic meters cm;
• fuel tank capacity - 3.1 liters;
• type of mechanism - single-cylinder, four-stroke, overhead valves;
• the cylinder is made of cast iron;
• equipment weight - 15.5 kg;
• type of carburetor - float;
• regulator type - mechanical;
• due to the innovative Lo-Tone muffler, the unit does not create much noise;
• a special type of electronic ignition Magnetron allows you to quickly start the device without failures.

Easy enough to operate, maintain - this engine is installed in large lawn mowers. The model is distinguished by its high performance even under intense loads. Feature of 650 EXi Series - regular oil changes are not required, the main thing is to maintain a certain level.

The design features a single cylinder, four-stroke air-cooled carburetor with overhead valves (OHV). It is the Just Check & Add system that allows you not to make regular oil changes - just add the right amount after each check. Now, when starting, there is no need to pump fuel into the carburetor, the ReadyStart system makes starting the engine much easier.

Another benefit of lawnmower motors is the S2 start guarantee, which is given to every purchaser of the device. It involves free repairs if the unit does not start from the first attempts.

General description:

• 9, 15 Nm - maximum torque;
• 163 cc cm - the total amount of work;
• 1 liter - the size of the fuel tank;
• overhead valve carburetor;
• the total weight of the device is 8.5 kg;
• the cylinder is made of high-strength aluminum;
• Super Lo-Tone - this muffler model simplifies operation, reduces noise, improves sound quality;
• Mow N »Stow - function to save storage space up to 70%;
• reliable, efficient float-type carburetor.

In the process of operation, the valves are lapped, removing some of the outer coating, therefore, after lapping or re-installation, it is recommended to adjust the pusher clearances.

Description of the procedure.

• Having installed the valves, it is necessary to turn the crankshaft clockwise up to the stop. Make sure the installed parts are tightly closed. Now we turn the same shaft beyond the top point - let the piston move a quarter from the cylinder head.
• Using a dipstick, we check the gap. To increase it, you can grind the tip of the square of the rod, before removing the pusher. Experts advise to constantly check the length so as not to cut off excess metal.
• Clean the individual parts well. Then it is necessary to thoroughly lubricate the stem, the valve guide - for this, a special lubricant is used. At the end of the procedure, check for any lubricant at the ends of the pusher.

Adjusting the top valves is as simple as the previous one. The main thing is to follow the following guidelines:

• release the brake spring;
• turns the handwheel to close both pushers;
• insert a narrow screwdriver into the spark plug hole - you need to get to the piston;
• turn the flywheel clockwise - the piston should drop below the top dead center by one fourth;
• measure the range of motion with a screwdriver;
• experts advise to carry out such a procedure to all owners of V-shaped carburetors;
• it is necessary to check the clearance with a feeler gauge, placing it between the rocker arm and the valve head. Keep in mind, both gaps are different sizes: 0.002-0.004 and 0.005-0.007;
• when turning the rocker screw, we proceed to the very adjustment of the clearances - do it at our discretion;
• at the end, do not forget to tighten the nut;
• when installing the cover, you can replace the gaskets (in case of wear), and then check the reliability of fastening.

The American firm Briggs & Stratton is a durable, wear-resistant, efficient engine for motoblocks for various purposes. Thus, the equipment is equipped with the latest technologies that greatly facilitate the process of work as a whole: it reduces the noise level, protects against wear, and reduces fuel consumption. When buying a device of this brand, it is important to decide on the type of household or construction work. The specialist will select the optimal model for you, which, among other things, comes with a guarantee in the event of a malfunction of the mechanism after the first or second start.

For more information on the features of Briggs & Stratton engines for a walk-behind tractor, see the video below.