Ensuring a secure and reliable fuel connection is crucial for any outboard motor. Dual barb connectors are a common design, featuring barbs on both ends to grip the fuel line for a tight fit. But did you know there are variations depending on your outboard brand and year? Today's blog post will guide you through the three most common types of dual barb outboard fuel connectors, complete with helpful photos and an easy way to memorize.
- Evinrude/Johnson:
Evinrude and Johnson outboards often utilize a unique dual barb connector design. These connectors typically have two thin barbs. The fuel barb, 6mm diameter for connecting to the fuel line coming from the tank & the locking barb usually 5.5mm diameter.
- Yamaha/Mercury (Pre-1999):
Yamaha and Mercury outboards manufactured before 1999 frequently use a dual barb connector recognisable by their thick & thin appearance. 8.2mm diameter fuel line and 5.6mm diameter locking barb.
- Mercury (1999 and On):
For Mercury outboards built in 1999 and later, the dual barb connector design changed slightly. These connectors can be easily spotted by their signature two thick barbs. 8.2mm diameter fuel & 6.7mm diameter locking barb.
Beyond the Basics:
When replacing your fittings, It’s always good practice to choose fitting from the same brand to ensure compatibility. Sometimes connectors from different manufacturers may not seat correctly. An audible “click” is always a good sign of a secure connection.
While these three connector types cover the most common scenarios, it's always recommended to consult your outboard's service manual for specific part numbers and configurations. Remember, using the correct connector ensures a secure fuel connection, preventing leaks and potential engine issues.
Additional Tips:
- Always use high-quality, marine-grade fuel lines with your chosen connector.
- Inspect your fuel lines and connectors regularly for signs of wear or damage.
- Replace any cracked, brittle, or loose connectors immediately.
By understanding the different types of dual barb connectors and following these simple tips, you can ensure your outboard receives a steady flow of fuel for smooth operation on the water.
