The cam lobes:

Which of these is not a reason for valve failure?

The first one or two numbers of the model number system indicates:

If there is a difference in the size of the valve head, the intake valve is _______ than the exhaust valve

Valves have to seal well enough to stand pressures up to ________ pounds per square inch

The function of the crankcase breather is to remove ______ from the crankcase.

For the valves to open at the proper time the ______ marks must be aligned.

The compression release is designed to:

Valves are held in the closed position by valve guides.

Weak compression may be caused by a leaky head gasket

Weak compression could not be caused by worn rings

Cylinders can be resized with a hone

Which part of the magneto ignition system converts low voltage into high voltages?

The most likely problem with an engine that runs rich and blows black smoke is:

The purpose of proper ignition timing is to

The secondary winding of the magneto coil has approximately _______ times as many turns as the primary coil circuit

If you notice fuel is dripping from the carburetor, the problem could be:

The relatively low voltage produced in the primary coil windings is increased by the:

The magneto primary coil consists of:

Flo jet carburetors must have the float adjusted or set ______ to operate properly.

A loss of spark when the engine reaches operating temperature generally indicates a:

Which of the following spark plug tip insulator descriptions best indicates a "hot" spark plug?

Which of the following is a part of the ignition coil?

What spark plug appearance clearly indicates the possibility of too "lean" a carburetor fuel mixture for the 2 cycle engine?

You remove the float bowl from the engine that you are repairing and no fuel is present:

The ignition coil of a gas engine adjusts the secondary circuit current for the spark plugs by increasing the:

Which of the following describes the secondary winding of a magneto coil?

The main function of the coil is to:

When checking the Briggs and Stratton magneto ignition system for spark, it must jump a gap of:

The ring gap reject size for a cast iron engine's oil ring is:

A sheared or partially sheared flywheel key would cause:

During the intake stroke, the exhaust valve is:

The part which most frequently breaks on the recoil starter unit is the:

Vapor lock can occur when:

At low speeds, the ignition spark should be supplied closer to TDC

A four stroke cycle single cylinder engine has one power stroke every four revolutions of the camshaft

Solid state ignition systems eliminate the conventional breaker points

The crankshaft in a 4 cycle engine turns at _______ the speed of the camshaft

The 4 cycle cylinder engine has a power stroke ________ revolution of the crankshaft.

The two materials most widely used in manufacturing small gas engine blocks are:

When an engine is operating at 3000 RPM each valve opens and closes in approximately:

An excess of carbon accumulates in the combustion chamber and it causes an increase in the:

In the 4 cycle small gas engine, how many complete revolutions must the crankshaft make to complete one cycle?

The ring end gap measures 0.045" and the reject size is 0.035". The rings:

Which of the following indicates the proper piston stroke sequence for a 4 cycle engine?

Piston displacement refers specifically to the:

Engine compression is measured in:

Viscosity index indicates:

Which of the following is not one of the strokes of the 4 cycle engine?