Power Tools & Equipment
Power Tools & EquipmentUpdated 10/1/2026

How to Maintain and Winterize a Gas Leaf Blower

End-of-season maintenance — stabilizing fuel, cleaning the spark plug, and checking the air filter — keeps your gas blower starting reliably next fall.

Power Tools & Equipment
How-To Guides
Difficulty
Intermediate
Time
45 minutes
Budget
$
Safety
Medium

Tools needed

  • Spark plug socket wrench
  • Screwdriver set
  • Shop rags

Materials needed

  • Premium fuel stabilizer
  • Replacement spark plug
  • Small engine air filter

Step-by-step

  1. 1

    Add fuel stabilizer to the tank and run the engine a few minutes to circulate it.

  2. 2

    Either run the tank dry or store it full with stabilizer per the manual.

  3. 3

    Remove and inspect the spark plug; clean or replace it and reset the gap.

  4. 4

    Pop the cover and clean or swap the air filter.

  5. 5

    Wipe down the housing and store in a dry place off the floor.

Common mistakes

  • • Storing old untreated gas, which gums up the carburetor
  • • Forgetting to disconnect the spark plug while servicing

Maintenance & next steps

Repeat fuel stabilization any time the tool sits unused for a month or more.

When to call a professional

For carburetor rebuilds or persistent starting problems after basic maintenance.

Editor's note: This is instructional content for How to Maintain and Winterize a Gas Leaf Blower. Replace with your own firsthand experience and photos before publishing.
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This page contains affiliate links. If you purchase through them, we may earn a commission at no additional cost to you.
STA-BIL Storage Fuel Stabilizer (10 oz.)
Consumable
STA-BIL

STA-BIL Storage Fuel Stabilizer (10 oz.)

Best for: Preventing gummed-up carburetors

10 oz • treats up to 20 gal

NGK BMR6A Spark Plug for Small Engines
Consumable
NGK

NGK BMR6A Spark Plug for Small Engines

Best for: Replacing a worn small-engine plug

BMR6A • small engine

Scotts Turf Builder WinterGuard Fall Lawn Food
Consumable
Scotts

Scotts Turf Builder WinterGuard Fall Lawn Food

Best for: Feeding roots before winter frost

High-potassium winterizer • covers ~5,000 sq ft