1 – Small Engine Operation & Maintenance

Label the major components of a two-stroke-cycle engine.

#1

Label the major components of a two-stroke-cycle engine.

#2

Label the major components of a two-stroke-cycle engine.

#3

Label the major components of a two-stroke-cycle engine.

#4

Label the major components of a two-stroke-cycle engine.

#5

Label the major components of a two-stroke-cycle engine.

#6

Label the major components of a two-stroke-cycle engine.

#7

Label the major components of a two-stroke-cycle engine.

#8

Label the major components of a two-stroke-cycle engine.

#9

Label the major components of a two-stroke-cycle engine.

#10

Label the major components of a two-stroke-cycle engine.

#11

Label the major components of a four-stroke-cycle engine.

#12

Label the major components of a four-stroke-cycle engine.

#13

Label the major components of a four-stroke-cycle engine.

#14

Label the major components of a four-stroke-cycle engine.

#15

Label the major components of a four-stroke-cycle engine.

#16

Label the major components of a four-stroke-cycle engine.

#17

Label the major components of a four-stroke-cycle engine.

#18

Label the major components of a four-stroke-cycle engine.

#19

Label the major components of a four-stroke-cycle engine.

#20

Label the major components of a four-stroke-cycle engine.

#21

Label the major components of a four-stroke-cycle engine.

#22

Oil is manually mixed with the engine fuel before being used in the engine.

Oil is mixed with the fuel along with air as the fuel enters the crankcase.

Movement of the engine parts causes oil to be thrown onto other moving parts.

A pump is used to force oil to circulate around moving parts.

Classify types of lubrication systems as being used on either two-stroke-cycle engines or four-stroke-cycle engines.

Pre-mix system

Classify types of lubrication systems as being used on either two-stroke-cycle engines or four-stroke-cycle engines.

Splash system

Classify types of lubrication systems as being used on either two-stroke-cycle engines or four-stroke-cycle engines.

Injection-mix system

Classify types of lubrication systems as being used on either two-stroke-cycle engines or four-stroke-cycle engines.

Pressure-feed system

The oil filler hole is situated so that removing the cap allows the operator to visually check the oil level in the sump.

Fuel level in the engine can be checked visually or with a fuel-level indicator.

A rod reaches into the sump or storage tank; by pulling the rod out, the operator can visually check the oil level on the rod.

Worn or dirty spark plugs decrease the amount of voltage needed to provide a proper spark for the engine.

Fouled or damaged spark plugs increase the engine’s fuel consumption.

An engine with dirty or damaged plugs can be hard to start and may not run properly.

Crankcase ventilation

Fresh, filtered air is drawn into the crankcase

Label the components of a crankcase breather assembly.

#41

Label the components of a crankcase breather assembly.

#42

Label the components of a crankcase breather assembly.

#43

Label the components of a crankcase breather assembly.

#44

Label the components of a crankcase breather assembly.

#45

The purpose of the cooling system is to keep the engine temperature as cool as possible.

Pure water is usually used to cool water-cooled engines.

Air-cooled systems prevent hot air from overheating the engine.

Holds the fuel prior to delivery to the engine

Removes contaminants from the fuel prior to delivery to the carburetor

Provides the force that moves the fuel from the tank to the carburetor

Routes the fuel through the fuel system

Mixes the fuel and air to form a combustible mixture

Which of the following is NOT a type of fuel filter used on power equipment engines?

Which of the following is NOT a type of air filter used on power product equipment engines.

A pulley on the end of the crankshaft has a rope installed in it; the pulley is attached to a recoil spring so that after the rope is pulled it is automatically rewound onto the pulley.

Movement of a crank either directly turns the crankshaft or turns the crankshaft through a series of gears.

A knotted rope is placed in a slot on a pulley attached to the crankshaft and manually wrapped around the pulley; the rope is then pulled to cause the pulley and crankshaft to turn.

An electric motor powered by commercially available 110/120-volt or similar power from home or shop outlets provides the energy required to rotate the crankshaft.

An electric motor powered by a battery provides the energy required to rotate the crankshaft.

Covers the starter mechanism

Provides a means to rotate the pulley

Automatically rewinds the starter rope after each starting attempt

Houses the rewound rope and the pawls

Locks the pulley to the crankshaft adapter once the pulley begins to turn