Riding a Harley-Davidson or Indian Motorcycle is all about the freedom of the open road and the roar of a powerful engine. However, maintaining your bike's performance requires regular upkeep, and one crucial yet often overlooked component is the exhaust gasket. Understanding when and how to change your motorcycle exhaust gaskets can make a world of difference in your bike's performance and longevity. In this article we’ll explain the importance of gaskets, the differences between Harley, Indian and aftermarket gaskets, and instructions for inspecting and replacing your gaskets.

• Disturbed Exhaust Flow: This causes improper back pressure in the exhaust primary for that cylinder.
• Air Leak in EFI Engines: Outside air entering the exhaust stream causes the O2 sensor to read a lean condition, prompting the ECU to add extra fuel. This can make your bike run rich, potentially damaging the cylinder and rings.

• Harley Gaskets: These feature a reversed taper shape and are made from a graphite/mesh design.
• Indian Gaskets: These are flat, multilayer gaskets with an inside made of graphite/mesh and an outside layer of crushable aluminum.
• Sawicki Speed's Gaskets: Currently available for Harleys, these are flat race-style gaskets (options for Indians coming soon).
  

You should replace your gaskets anytime you install a new exhaust, even if the current exhaust and gaskets haven't been on for long. Always start with a new, unused set. For ongoing maintenance, change the gaskets every season if the exhaust hasn't been removed. If the exhaust is removed for any reason, new gaskets are recommended.

SIGNS YOUR GASKETS NEED REPLACING

• Nasty Exhaust Leak Sound: Listen up close by the cylinder for a distinctive leak sound.
• Black Soot Around Exhaust Flange: Use a flashlight to check for any soot formation.
• Feel for Air Leaks: Without touching the pipe, feel around the exhaust port on the cylinder head for any escaping air.

TOOLS NEEDED

• Pick: Essential for removing OEM Harley gaskets pressed in from the factory.
• New Gaskets: Ensure they're compatible with your exhaust system.

STEP-BY-STEP GUIDE

1. Uninstall Current Exhaust:

• If it’s a stock exhaust, refer to the owner’s manual.
• For aftermarket exhausts, refer to the manufacturer’s specific instructions.

2. Remove Old Gaskets:

• Use a pick to carefully remove the old, pressed-in gaskets.

3. Install New Gaskets:

• Ensure the new gaskets are straight and seated properly all the way into the exhaust port.
• This step is crucial to avoid pinching or crushing the gasket on an angle.

4. Re-install Exhaust:

• Follow the OEMs or aftermarket exhaust manufacturer’s instructions to properly reinstall the exhaust system.

Exhaust gaskets are small components with a huge impact on your motorcycle's performance. Make it a habit to regularly inspect and replace them when needed. If you need further assistance or want to ensure you're using the best products, reach out to us by phone, chat, or email. Happy riding!