The vacuum that sucks in the air/ fuel mixture is caused by what?
Downward stroke of the piston
Small engines convert linear energy into what kind?
Rotary energy
Venturi
Connects piston to crankshaft
Connecting rod
supplies fuel to the venturi tube when the engine is running at low speeds
Idle valve
What type of engine is defined as an engine where the air/fuel are burned within the engine?
Internal combustion
What is mounted to the block to cover the combustion chamber?
Head
Not enough fuel in the mixture
Lean mixture
Flywheel
supplies fuel to the venturi tube when the engine is running at high speeds
Main needle valve
What is the total distance the piston moves from TDC to BDC?
Stroke
These provide a tight seal between piston and cylinder?
Compression rings
The two carburetor adjustments that regulate fuel mixtures
Main needle
Idle screw
Mixes gas and air into a vapor
Carburetor
Regulates the amount of air/fuel mixture entering the combustion chamber
Throttle
What happens when you compress the air/fuel mixture?
Increases the temperature
What is considered the backbone of the engine?
Crankshaft
Device used to regulate speed
Governor
Moves oil around the crankcase
oil slinger
oil dipper
oil pump
used to restrict air flow into the venturi tube: result increase fuel to air ratio
Choke
List the 4 strokes in order of the 4 stroke engine
Intake
Compression
Power
Exhaust
What 2 things are used to reduce friction between moving parts?
oil and bearings
List the 5 parts that aid the carburetor
Fuel tank
fuel lines
choke
governor
air cleaner
Open and close to allow air/fuel mixture into the cylinder
Valves
Carburetor most used with lawn mowers
Suction feed