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Harley Davidson Motorcycles Service Center Fullerton Orange County California at Motorhelmets

Conquering the Contaminants: A Guide to Metric Cruiser & Harley Davidson Gas Tank Flushes

Understanding Your Gas Tank:

  • Your motorcycle's gas tank stores fuel, but over time, it can accumulate various contaminants. These include:
    • Rust: Caused by moisture entering the tank, it can flake off and clog fuel lines, filters, and injectors.
    • Debris: Dirt, dust, and other external elements can find their way into the tank during refueling or through worn components.
    • Varnish: Gum-like deposits from old fuel can build up, hindering proper fuel flow and engine performance.

Signs of a Contaminated Gas Tank:

  • Difficulty starting: The engine struggles to crank or stalls frequently due to inconsistent fuel flow.
  • Reduced power and performance: Clogged fuel lines and injectors restrict fuel delivery, leading to sluggish acceleration and lower power output.
  • Engine hesitation and surging: Erratic fuel flow causes the engine to sputter and surge erratically.
  • Fuel filter clogging: Frequent clogging of the fuel filter indicates potential contamination in the tank.

The Power of a Flush:

  • A professional gas tank flush can significantly improve your motorcycle's performance and prevent costly repairs. Here's what you can expect:
    • Removal of contaminants: The tank is thoroughly cleaned using specialized chemicals and techniques to remove rust, debris, and varnish buildup.
    • Improved fuel flow: Clean fuel lines and injectors ensure smooth fuel delivery for optimal engine performance.
    • Reduced risk of breakdowns: By removing contaminants, you prevent them from clogging vital fuel system components and causing further issues.
    • Extended fuel system lifespan: Cleanliness keeps your fuel system functioning optimally, reducing wear and tear on its components.

The Cost Equation:

  • Gas tank flush costs vary depending on the severity of contamination, the size of the tank, and the shop's labor rates:
    • Gas Tank Flush: $150.00

DIY or Pro?

  • While some might consider tackling a gas tank flush themselves, consider these factors:
    • Safety: Gasoline is highly flammable and hazardous. Improper handling during flushing can lead to fires or explosions.
    • Effectiveness: Professional shops have specialized tools, chemicals, and expertise to ensure thorough cleaning and safe disposal of contaminants.
    • Time commitment: The process can be time-consuming, especially for heavily contaminated tanks.
    • If unsure, entrusting the task to a qualified mechanic ensures a safe, effective clean, and valuable advice on preventing future contamination.

Beyond the Flush:

  • Maintaining a clean fuel system involves additional practices:
    • Use high-quality fuel: Purchase fuel from reputable gas stations and avoid storing your motorcycle for extended periods with old fuel in the tank.
    • Fuel stabilizer: Consider adding a fuel stabilizer during long-term storage to prevent varnish formation.
    • Regular maintenance: Follow your owner's manual for recommended fuel system cleaning and maintenance intervals.

Ride Clean, Ride Confident:

  • By understanding the importance of gas tank flushes, their costs, and valuable tips, you can keep your metric cruiser or Harley Davidson running smoothly and efficiently. Remember, a clean fuel system is an investment in your motorcycle's performance, longevity, and ultimately, your worry-free riding enjoyment. So, don't let contaminated fuel sideline your adventures – schedule a gas tank flush service today and keep your motorcycle running clean and mean!

Bonus Tip:

  • Consult your motorcycle's owner's manual for specific recommendations on fuel types, storage practices, and any specific gas tank flush procedures based on your model.

Motorhelmets Metric Cruiser / Harley Davidson Gas Tank Flush Services

Service Description:

  • Gas Tank Flush Services

When to Perform the Service:

  • Gas tank flush is recommended when there is contamination or debris present in the fuel tank, causing fuel system issues.
  • It's also advisable to perform a gas tank flush when switching to a different fuel type or after prolonged storage to remove stale fuel and prevent fuel system clogs.


  • Gas tank flush is not mileage-based but rather depends on the condition of the fuel tank and fuel system.
  • It's typically performed as needed based on fuel system performance and maintenance intervals.


  • Gas Tank Flush Services: $150.00


  • Gas tank flush helps remove dirt, rust, and contaminants from the fuel tank, ensuring clean fuel delivery to the engine.
  • Regular maintenance of the fuel system, including gas tank flushes, promotes optimal engine performance, fuel efficiency, and prevents fuel system clogs.
  • Proper maintenance of the fuel system contributes to the overall reliability and longevity of the motorcycle's engine.

For More Information - Contact Us


Motorhelmets Fullerton CA

1871 W. Commonwealth Ave., Fullerton CA 92833 USA
Tel: 714-879-8180 | Email:
Service Dept SMS Txt: 657-217-3988 | Sales Dept SMS Txt: 657-217-6457
Store Hours: M-F 10am-7pm | Sat 11am-6pm
Schedule My Service | Buy My Service

General HD Service Guideline Below

Maintain regular service on your Harley Davidson motorcycle. Regular intervals is recommended for optimal performance. Service should be at 1,000, 5,000, 10,000, 15,000 and 20,000 Miles. Every 5 thousand miles thereafter.

Harley Davidson Motorcycles Service Center Fullerton Orange County California at Motorhelmets

Harley Davidson Motorcycle Maintenance Suggestions
Simple Self Maintenance Tips between visits to our service shop.

  • Clean the battery terminals, coat with dielectric grease to prevent corrosion
  • Examine pivot points and moving parts for signs of wear/ interference
  • Check the standing voltage at each battery terminal (using a multimeter)
  • Check for failed fork seals and dripping fluid under the bike
  • Check for blown fuses and ensure that spares are present
  • A well maintained Harley Davidson motorcycle with high mileage is always better than a poorly maintained bike with low miles

Harley Davidson Motorcycles Service Center

Fullerton / Orange County California

Service, Repair, Tires, Maintenance

Let our professionals keep your Harley in the best condition

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