What is a Blower primarily used for?

• A. to supply the engine with a large volume of low-pressure air
• B. to cool the fuel
• C. to filter exhaust gases
• D. to reduce crankcase pressure

Answer: (A)

A blower’s job is to push a large volume of air into the engine’s intake, providing enough air for combustion at starter or low-speed conditions. It delivers this air at relatively low pressure but with high volume, which helps fill the cylinders and, in two-stroke designs, aids scavenging so exhaust is cleared and fresh air can enter.

This is why it’s the best choice: it directly supplies the air the engine needs for starting and proper operation, whereas cooling fuel, filtering exhaust, or regulating crankcase pressure aren’t the blower’s functions.