AIR FILTER

Your engine will not run properly and may be damaged by using a dirty air filter. Clean the element after every 25 hours of operation, more often if lawn mower is used in very dusty, dirty conditions.

See the maintenance section of your engine manual.

SPARK PLUG

Change the spark plug once a year to make the engine run better and easier to start. Set spark plug gap according to engine manual specifications.

MUFFLER

Inspect and replace corroded muffler as it could create a fire hazard and/or damage.

CLEANING

IMPORTANT: For best performance, keep mower housing free of grass build-up and trash. Clean the underside of your mower after each use.

•Clean the underside of your lawn mower by scraping to remove buildup of grass and trash.

•Clean engine often to keep trash from accumulating. A clogged engine runs hotter and shortens engine life.

•Keep finished surfaces and wheels free

of all gasoline, oil, etc.

We do not recommend using a garden hose to clean your lawn mower unless the electrical system, muffler, air filter, and carburetor are covered to keep water out. Water in engine can shorten engine life.

SERVICE AND ADJUSTMENTS

CAUTION: Before performing any service or adjustments-

•Release operator presence control bar.

•Make sure the blade and all moving parts have completely stopped.

•Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with spark plug.

LAWN MOWER

REAR DEFLECTOR (IF EQUIPPED)

The rear deflector, attached between the rear wheels of your mower, is provided to minimize the possibility that objects will be thrown out of the rear of the mower into the operator mowing position. If the deflector becomes damaged, it should be replaced.

ENGINE

CARBURETOR

The carburetor has been preset at the fac- tory and adjustment should not be neces- sary. However, minor adjustment may be required to compensate for differences in fuel, temperature, altitude or load.

•The air filter must be assembled to the carburetor when running engine.

•Best carburetor adjustment is obtained when fuel tank is 1/4 full.

•In order for the engine to run, the opera- tor presence control bar must be held in the operating position. Therefore, and assistant will be required to hold

the control bar in the operating position when making final adjustment to the carburetor.

See the adjustment section of your engine manual for further instructions.

ENGINE SPEED

The engine speed has been factory set. Do not attempt to increase engine speed as it may result in personal injury. If you believe the engine is running too fast or too slow, take your lawn mower to an authorized engine service center for repair and adjustment.

THROTTLE CONTROL

If it becomes necessary to adjust or replace the throttle control, see the adjust- ment section of your engine manual.

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Poulan 172777 manual Service and Adjustments, Cleaning
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172777 specifications

The Poulan 172777 is a powerful and versatile engine that caters to a variety of outdoor power equipment needs. Known for its reliability and efficiency, it is used in lawn mowers, snow blowers, and other gardening tools, making it a staple for homeowners and landscaping professionals alike.

One of the main features of the Poulan 172777 is its robust engine design. The engine typically features a displacement of 177cc, providing ample power to tackle tough mowing and clearing tasks. Its four-stroke technology ensures smooth performance, delivering a balance of power and fuel efficiency. Users can expect a clean and consistent operation, which is enhanced by the engine's ability to maintain an optimal RPM even under load.

In terms of technology, the Poulan 172777 is equipped with a modern carburetor system that improves fuel delivery and combustion efficiency. This results in reduced emissions and minimizes environmental impact, appealing to eco-conscious consumers. Additionally, the engine is designed with a recoil start system, ensuring that starting the engine is straightforward and hassle-free, allowing users to get to work quickly.

Durability is another significant characteristic of the Poulan 172777. This engine is built with high-quality materials that can withstand harsh outdoor conditions. Its cast iron cylinder sleeve offers increased longevity and helps maintain optimal engine temperatures. The overhead valve (OHV) design contributes to better heat dissipation, further enhancing the engine's lifespan and performance.

Moreover, the Poulan 172777 incorporates features aimed at user comfort and safety. The ergonomic design of the equipment it powers typically includes vibration-dampening technology, which reduces fatigue during extended use. Safety features such as low-oil shutdown mechanisms prevent engine damage and extend the overall life of the equipment.

In summary, the Poulan 172777 stands out for its powerful performance, advanced technology, and durable construction. It is an ideal choice for anyone looking for a reliable engine for their outdoor power equipment, capable of handling a range of tasks with ease. Whether for personal use or professional landscaping, the Poulan 172777 is engineered to deliver efficiency, comfort, and reliability. As such, it remains a popular choice among consumers seeking high-quality outdoor power solutions.
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