Compression-Briggs & Stratton

During the power stroke, the expanding gases force the top ring on the piston against the cylinder wall.

• True

• False

The compressing of the charge does not aid the air/fuel flow into the cylinder wall.

• True

• False

Why must the "charge" in the combustion chamber be compressed before ignition?

• Cools the charge to make it more dense

• Improved vaporization of air and fuel

• Increases the volume of air

• All of the above

When the intake valve opens the air passage to the carburetor, the higher outside atmospheric pressure flows into the lower pressure of the cylinder.

• True

• False

If the exhaust valve face shows any signs of pitting, burning, or evidence of a valve seat impression:

• Replace the valve

• Grind the valve face

• Replace the seat

• None of the above

The narrower the valve margin, the longer the valve life.

• True

• False

During upstrokes of the piston, what occurs within the crankcase?

• A high pressure area is created

• A low pressure area is created

• Oil seals begin to leak

• Engine slows down

The air/fuel charge enters the combustion chamber in a ____state.

• Solid

• Vapor

• All of the above

• None of the above

Which of the following are commonly found on B& S engines?

• Oil control ring

• Compression ring

• Wiper ring

• All of the above

Which color of engine smoke indicate an overly rich fuel mixture?

• Blue

• Grey

• Black