On the compression stroke of a four-stroke engine, only the intake valve is closed.

On the power stroke of the four-stroke engine, both valves are closed.

When both the two-stroke and four-stroke engines, the spark ignites the air-fuel mixture when the piston is near the top of the center.

In a 4 stroke engine, oil is burned with gas in the combustion chamber.

The carburetor is a device for mixing the fuel and lubricating oil.

The piston is the moving end of the cylinder.

It takes four revolutions of the crankshaft to complete one cycle in a four-stroke engine.

In a four-stroke engine, the crankcase contains lubricating oil.

The valves are held closed by the springs.

A seal is made between the piston and the cylinder walls by piston rings.

Valves are opened by springs.

The flywheel connects the piston and crankshaft

The choke provides a rich fuel mixture by restricting the air supply to help start cold engines

A sheared or partially sheared flywheel key would cause

The basic purpose of a carburetor is to

Too little crankcase oil in the 4-cycle engine will cause

Two types of small engine governors are

A ______ can be described as a device for automatically mixing fuel and air in the proper amounts.

When a small engine stops after it has been running, the FIRST thing you check is

Most engines have a type of _______ lubrication system.

The "mating" surface of the valve is the

The exhaust valve opens and the upward movement of the piston forces the burned gases out of the cylinder on the

A compression test tells the

The purpose of the cylinder wall crosshatch pattern is to

A common compression ratio in a small gas engine could be:

Good compression depends on

Weak compression may be the result of

A perfect stoichiometric ratio of air to gasoline is.

Piston moves down, intake valves opens

Piston moves down, both valves closed

Transfers power from piston to crankshaft

Turns 720 degrees in one cycle

Piston moves up, both valves closed

Turns half the speed of the crankshaft

Used by mechanics to measure in .000 measurements

Where fuel is burned and power is generated

Power rating of an engine

What is the order of the engine strokes?

It takes ________ revolutions of the crankshaft to complete one cycle in a four-stroke engine.