How to Build and Wick the Early Bird Serin Boro RBA

Quick answer

Build the Early Bird Serin Boro RBA with a coil positioned close to the airflow, then wick with enough cotton to fill the ports without packing them tight. Check for smooth resistance when pulling the cotton through the coil, and prime thoroughly before closing the tank.

Step-by-step Serin Boro RBA build and wick

1. Prepare the deck and check the posts: Remove the bridge from the Boro tank and inspect the dual-post deck. Make sure the post screws turn freely and the deck is clean and dry. Common mistake: building on a deck that still has old cotton or liquid residue, which can affect resistance readings. A clean, dry deck gives you a reliable baseline resistance.
2. Install and position the coil: For a single coil, center the coil between the posts and align it with the airflow. For dual coils, fit one coil per side and keep them symmetrical. Keep the coil clear of the deck edges and the tank opening. Common mistake: positioning the coil too high or too low, which changes throat hit and flavor. Check that the coil does not touch the posts or deck walls before firing.
3. Dry burn and check for even glow: Pulse the coil at low power and check that it glows evenly from the center outward. Use ceramic tweezers to adjust spacing only when the coil is not firing. Common mistake: glowing a coil too hot, which can damage the wire or distort the coil. An even glow from the center is the sign of a coil ready to wick.
4. Wick the coil with the right density: Roll a strip of cotton and pull it through the coil. It should move with slight resistance but not bunch up or tear. Cut the tails so they reach the wicking ports without compressing into them. Common mistake: overstuffing the ports, which restricts liquid flow and causes dry hits. The cotton should fill the port opening without being packed tight.
5. Prime and assemble: Drip liquid directly onto the coil and wick until saturated, then fire briefly at low power to check for dry spots. Reassemble the bridge into the Boro tank and fill the tank. Common mistake: firing a dry wick before priming, which burns the cotton. Prime until the cotton looks glossy, not just damp.
6. Break in and adjust: Start at low power and increase gradually. If flavor is weak, check coil position relative to the airflow. If the vape is dry or harsh, check wick density at the ports. Common mistake: changing several variables at once, which makes it hard to identify the cause. Adjust one variable per rebuild so you can learn what the Serin deck responds to.

Product facts

• Early Bird Serin Boro RBA: Dual-post build deck that accommodates both single and dual coil configurations. You can start with a simpler single coil and move to dual coils later without changing the bridge.