Why is my leaf blower not running at full throttle?

Check the spark arrestor

If your leaf blower is quieter and lacks power, the spark arrestor may be clogged.

• A restricted spark arrestor lowers engine RPM and reduces performance

Fix:

• Remove the spark arrestor
• Clean it using a wire brush
• Replace it if heavily clogged

What is the purpose of a spark arrestor on my leaf blower?

Husqvarna recommends that the spark arrestor is cleaned after every 50 hours of use.

Check the air filter

A dirty air filter restricts airflow and reduces engine power.

• Reduced airflow can cause loss of throttle performance and overheating

Fix:

• Remove the air filter
• Clean or replace it if dirty or damaged

Check the fuel

Old or incorrect fuel can limit engine performance.

• Poor fuel quality prevents the engine from producing full power

Fix:

• Drain old fuel if needed
• Refill with fresh, properly mixed fuel

Check the spark plug

A worn or dirty spark plug can reduce engine efficiency.

Fix:

• Remove and inspect the spark plug
• Clean or replace if needed

Check air flow or exhaust blockages

Blocked exhaust or intake can reduce engine output.

Fix:

• Inspect for debris in air intake or exhaust
• Clean any visible blockages