1. Introduction
This manual provides instructions for the proper setup, operation, and maintenance of your KastKing Spartacus II Plus Baitcasting Fishing Reel. Designed for both freshwater and saltwater fishing, this reel features an ultralight design, smooth drag system, and precise gear ratio for optimal performance.

Figure 1: The KastKing Spartacus II Plus Baitcasting Fishing Reel, showcasing its sleek black design and ergonomic handle.
2. Safety Guidelines
- Always handle fishing hooks and lures with care to prevent injury.
- Ensure the reel is securely attached to your fishing rod before casting.
- Keep fingers clear of moving parts during operation.
- Do not attempt to disassemble the reel beyond routine maintenance as described in this manual.
- Store the reel in a dry, safe place away from direct sunlight and extreme temperatures.
3. Reel Components
Familiarize yourself with the main components of your Spartacus II Plus baitcasting reel:
- Handle: Used for retrieving line. Features EVA knobs for comfort.
- Spool: Holds the fishing line. Made from CNC anodized aluminum.
- Drag Adjustment Star: Controls the drag tension.
- Magnetic Brake System: Located on the side plate, used to control spool rotation during casting.
- Spool Tension Knob: Adjusts the tension on the spool to prevent overrun.
- Line Guide: Directs the line evenly onto the spool. Features DTCC (Double Tapered Control Chute) for reduced friction.
- Thumb Bar/Clutch: Engages and disengages the spool for casting.

Figure 2: An angled view of the KastKing Spartacus II Plus reel, highlighting the handle, spool, and main body.
4. Setup
4.1 Attaching the Reel to a Rod
- Align the reel foot with the reel seat on your fishing rod.
- Tighten the reel seat locking nut until the reel is firmly secured and does not wobble.
4.2 Spooling the Fishing Line
Properly spooling your line is crucial for optimal casting performance and to prevent tangles.
- Pass the fishing line through the line guide on the reel and then through all the guides on your rod.
- Tie the line to the spool using an arbor knot or a similar secure knot. Ensure the knot is tight.
- Close the bail (if applicable, though baitcasters typically don't have one in the traditional sense, ensure the clutch is engaged).
- Maintain light tension on the line as you reel it onto the spool. The line should lay evenly across the spool.
- Fill the spool to approximately 1/8 inch (3mm) from the rim. Overfilling can lead to tangles and backlashes.
5. Operating the Reel
5.1 Adjusting the Drag System
The drag system allows line to be pulled from the spool when a fish pulls hard, preventing line breakage. The Spartacus II Plus features a Triple-disc carbon fiber drag system providing up to 17.6 LBs of drag.
- Turn the Drag Adjustment Star clockwise to increase drag tension.
- Turn the Drag Adjustment Star counter-clockwise to decrease drag tension.
- Set the drag to approximately one-third of your line's breaking strength. Test by pulling line directly from the spool.

Figure 3: Illustration of the Triple-disc carbon fiber drag washers, capable of providing up to 17.6 LBs of smooth drag.
5.2 Adjusting the Magnetic Brake System
The 5-button magnetic brake system controls the spool's rotation during casting, helping to prevent backlashes. Higher settings provide more braking force, ideal for beginners or windy conditions. Lower settings allow for longer casts but require more thumb control.
- Locate the magnetic brake adjustment dial on the side plate of the reel.
- Rotate the dial to select your desired braking level (typically from 0 to 10, or Min to Max). Start with a higher setting and gradually reduce it as you gain experience.
5.3 Adjusting Spool Tension
The spool tension knob works in conjunction with the magnetic brake to fine-tune casting performance.
- Attach your lure to the line.
- Press the thumb bar to disengage the spool.
- Adjust the spool tension knob until the lure slowly falls to the ground. Once the lure hits the ground, the spool should stop spinning immediately. If it continues to spin, tighten the knob slightly. If it doesn't fall, loosen it.
5.4 Casting and Retrieving
Baitcasting reels require practice to master casting. Start with gentle casts in an open area.
- Casting: Hold the rod with your thumb resting on the spool. Press the thumb bar to disengage the spool. Make a smooth casting motion, removing your thumb from the spool as the lure travels. Lightly feather the spool with your thumb as the lure approaches the target to prevent overrun.
- Retrieving: Turn the handle clockwise to engage the spool and retrieve the line. The line guide will distribute the line evenly.
6. Maintenance
Regular maintenance ensures the longevity and smooth operation of your reel.
6.1 Cleaning
- After each use, especially in saltwater, rinse the reel with fresh water. Do not submerge the reel.
- Wipe the reel dry with a soft cloth.
- Use a cotton swab to clean hard-to-reach areas and the line guide.
6.2 Lubrication
- Periodically apply a small amount of reel oil to the ball bearings and moving parts.
- Apply reel grease to the main gears.
- Refer to a reel schematic (often available from the manufacturer's website) for precise lubrication points.
6.3 Storage
- Store the reel in a cool, dry place.
- Loosen the drag completely before storing to prevent compression of the drag washers.
- Consider using a reel cover to protect it from dust and scratches.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Backlash (Bird's Nest) | Spool tension too loose, magnetic brake too low, improper casting technique, overfilled spool. | Increase spool tension and/or magnetic brake setting. Practice casting technique. Ensure spool is not overfilled. |
| Stiff or Grinding Retrieve | Lack of lubrication, dirt/debris in gears, damaged components. | Clean and lubricate the reel. Inspect for damage. If problem persists, professional service may be required. |
| Drag Slipping or Inconsistent | Drag washers are dry, dirty, or worn. | Disassemble drag system (if comfortable), clean washers, and apply a thin layer of drag grease. Replace worn washers if necessary. |
| Line Not Laying Evenly | Line guide obstructed or damaged, improper line tension during spooling. | Check line guide for debris or damage. Respool line with consistent tension. |
8. Specifications
Key technical specifications for the KastKing Spartacus II Plus Baitcasting Fishing Reel:
- Model Name: Spartacus II Plus
- Weight: 5.5 ounces (approximately 155.92 g)
- Max Drag: 17.6 LBs (Triple-disc carbon fiber drag washers)
- Gear Ratio: 7.2:1 (High strength brass pinion gear, aerospace aluminum main gear)
- Ball Bearings: 10 + 1 MaxiDur Double Shielded Stainless Steel
- Frame Height: 39 mm (low-profile design)
- Brake System: 5-button magnetic brake
- Line Guide: KastKing DTCC (Double Tapered Control Chute)
- Spool Material: CNC Anodized Aluminum
- Frame & Side Cover Material: Carbon Fiber
- Handle Material: Aluminum with EVA knobs
- Hand Orientation: Right Hand (as per product data, other orientations may exist)
- Corrosion Resistance: Suitable for freshwater and saltwater use

Figure 4: The reel's ultralight design, weighing only 5.5 oz due to its carbon fiber frame and side covers.

Figure 5: The compact 39 mm frame height, contributing to a "Palm Perfect" ergonomic design.

Figure 6: Internal view illustrating the 7.2:1 gear ratio with high strength brass pinion and aerospace aluminum main gears.

Figure 7: Depiction of the 10+1 MaxiDur double shielded stainless steel ball bearings for smooth operation.
9. Warranty and Support
Information regarding the product warranty and customer support details was not provided in the available product data. For warranty claims, technical assistance, or to purchase replacement parts, please refer to the official KastKing website or contact their customer service directly.
KastKing Official Website: www.kastking.com