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Small Engine Parts System by System

Small Engine Parts System by System

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Engine Systems Mechanical Ignition Fuel & Air Delivery Lubrication Exhaust Electrical…Charging, Starting, Lighting & Accessory Cooling Emission Control

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Page 1: Small Engine Parts System by System

Small Engine Parts

System by System

Page 2: Small Engine Parts System by System

Engine Systems

• Mechanical• Ignition• Fuel & Air Delivery• Lubrication• Exhaust• Electrical…Charging, Starting, Lighting & Accessory

• Cooling• Emission Control

Page 3: Small Engine Parts System by System

Mufflers..Quiet & Help with Scavenging

Page 4: Small Engine Parts System by System

Exhaust

A system to quiet the engine operation and properly scavenge

out spent air & fuel without allowing fresh air & fuel to leave

the engine

Page 5: Small Engine Parts System by System

Stops the “pop”after shutting off the engine

Anti-after-fire solenoid

Closes the main jet

Reduces HC emissions

Page 6: Small Engine Parts System by System

Compression ratio is designed to keep burning well below2400 Fº in an effort to reduce NOx emissions

Page 7: Small Engine Parts System by System

These adjustments are either non-existent or are capped-offon low emissions engines in an effort to prevent indiscriminateadjustment by unskilled individuals which would lead to increasedHC & CO & NOx air pollution.

High Speed & Low Speed Mixture Screws