NIBBI Ignition Coil CDI Ignition Unit Box D9RIV Spark Plug

Contents

NIBBI Racing Motorcycle Ignition System User Manual

Ignition Coil, CDI Ignition Unit Box, and D9RIV Spark Plug

Model: Ignition Coil DHXQ 4T C, CDI Unit Box, Spark Plug R9IV

1. Introduction

Thank you for choosing the NIBBI Racing Motorcycle Ignition System. This manual provides essential information for the proper installation, operation, and maintenance of your NIBBI Ignition Coil, CDI Ignition Unit Box, and D9RIV Spark Plug. Please read this manual thoroughly before installation and use to ensure optimal performance and safety.

Video: NIBBI Racing Ignition System Overview and Features

2. Safety Warnings

  • Always disconnect the battery before working on the electrical system of your motorcycle.
  • High voltage components can cause severe injury or death. Exercise extreme caution.
  • Professional installation is highly recommended for all ignition system components.
  • Ensure all connections are secure and properly insulated to prevent short circuits and electrical hazards.
  • Do not modify the components unless explicitly instructed.
  • Keep away from flammable materials during operation.

3. Package Contents

Your NIBBI Racing Ignition System package may include the following components:

  • NIBBI Racing Ignition Coil (DHXQ 4T C)
  • NIBBI Racing CDI Ignition Unit Box
  • NIBBI Iridium Spark Plug (R9IV)
  • Mounting hardware (if applicable)
NIBBI Ignition Coil, CDI Unit Box, and Spark Plug

Image: NIBBI Ignition Coil, CDI Unit Box, and Spark Plug components.

4. Specifications

4.1 General Specifications

  • Voltage: 12V
  • External Testing Certification: CE
  • Additional Accessories: Yes
  • Item Weight: 0.5 kg (approximate, for the entire device)
  • Material: Motorcycle ignition device components

4.2 Ignition Coil (Model: DHXQ 4T C)

  • Product Feature: Water-proof Design, Avoid Flameout, Light weight, No rust
  • Performance: Quick reaction to ignition, less prone to ignition interruptions, High Voltage Resistance, Strong Spark, Precision Ignition, Durable in Use.
  • Construction: High quality insulating rubber surface, High Voltage Resistant Coil, High Quality Insulating Glue (automotive grade epoxy-resin, vacuum dipping technology).
  • Dimensions:
    • Coil Body Length: 66.5mm
    • Coil Body Width: 48.5mm
    • Mounting Hole Distance: 35mm
    • High Voltage Cable Length: 480mm
    • Auxiliary Wire Length: 160mm
  • Electrical (from Inspection Report):
    • Secondary Peak Voltage: ≥ 22KV (tested at 51.6KV)
    • Primary Winding DC Resistance: 445.9mΩ - 449.7mΩ
    • Secondary Winding DC Resistance: 8.915KΩ - 8.995KΩ
    • Primary Winding Inductance: 665uH - 673uH
    • Secondary Winding Inductance: 11.113H - 11.257H
    • Ignition Coil Time Energy: Time Marker 1 - 250μs, Time Marker 2 - 32μs, Time Increment 218μs
    • Continuous Firing Performance: Pass (min 20s)
    • High Voltage Insulation Dielectric Strength: Pass (withstand 12mm gap, 40s discharge)
Ignition Coil Product Size

Image: NIBBI Ignition Coil dimensions.

4.3 CDI Ignition Unit Box

  • Compatibility: Specially designed for ZS172 / ZS177 NC250 NC300 engines.
  • Circuit Type: DC circuit.
  • Performance: Unrestricted performance allows motor to reach optimal RPM, Multi-stage Mode Adjustable, Imported Chips, Low Energy Consumption, Anti-jamming, Soft Rubber Wraps The Inner Core, Stable And Durable, Strong Inner Core.
  • Dimensions:
    • Length: 63mm
    • Width: 26mm
    • Height: 80mm (65mm for main body)
  • Overvoltage Protection: LED blinking indicates voltage exceeded. If voltage exceeds 30V, LED flashes. If voltage exceeds 40V, igniter starts over-voltage protection and stops working.
CDI Product Parameters

Image: NIBBI Racing CDI dimensions.

4.4 D9RIV Spark Plug

  • Model: R9IV
  • Replacement for: NGK CR9EIX
  • Features: Designed for high-performance engines, increases power, reduces fuel consumption, improves hydrocarbon emissions. DiamondFIRE ground electrode for optimal heat transfer and vibration resistance. Edge-to-Edge design concentrates spark energy for quick and easy starts.
  • Dimensions:
    • Diameter of Thread: 10mm
    • Length of Thread: 19mm
    • Six Side Size: 16mm
  • Calorific Value: 9
  • Electrode: 0.5mm fine central electrode (Iridium), TN1 new ablation resistant material side electrode.
  • Porcelain Parts: High static pressure 95 porcelain for good insulation and heat dissipation.
  • Riveting: Cold powder filling processing technology to prevent inner crack of ceramic sleeve and increase tightness.
NIBBI Iridium Spark Plug R9IV Specifications and Compatibility

Image: NIBBI Iridium Spark Plug R9IV specifications and compatibility table.

5. Installation and Setup

Note: Professional installation is highly recommended. Ensure the motorcycle is turned off and the battery is disconnected before proceeding.

5.1 Ignition Coil Installation

  1. Locate the existing ignition coil on your motorcycle.
  2. Carefully disconnect the high-tension lead from the spark plug and the low-tension wires from the coil.
  3. Unmount the old ignition coil.
  4. Mount the NIBBI Racing Ignition Coil in the same location, ensuring a secure fit using the 35mm mounting hole distance.
  5. Connect the low-tension wires to the new coil.
  6. Connect the high-tension lead to the spark plug.

5.2 CDI Ignition Unit Box Installation

The CDI unit is designed for ZS172 / ZS177 NC250 NC300 engines. Refer to the wiring diagram below for proper connections.

NIBBI 8 Pin DC CDI Wiring Diagram

Image: NIBBI 8 Pin DC CDI Wiring Diagram. Connect the Black wire to power positive (+), Blue white wire to sensor, Black and yellow wire to height package, and Green line to grounding (-).

  1. Locate the original CDI unit on your motorcycle.
  2. Disconnect the wiring harness from the old CDI.
  3. Mount the NIBBI Racing CDI Ignition Unit Box securely.
  4. Connect the wiring harness to the new CDI unit according to the diagram. Ensure all connections are firm.

5.3 Spark Plug Installation

  1. Allow the engine to cool down completely before removing the old spark plug.
  2. Remove the spark plug cap.
  3. Using a spark plug wrench, carefully remove the old spark plug.
  4. Inspect the NIBBI D9RIV Spark Plug for any damage.
  5. Thread the new spark plug into the cylinder head by hand to avoid cross-threading.
  6. Once finger-tight, use a spark plug wrench to tighten it to the manufacturer's recommended torque specification (refer to your motorcycle's service manual). Do not overtighten.
  7. Reattach the spark plug cap.

6. Operating Instructions

6.1 CDI DIP Switch Settings

The NIBBI CDI features adjustable DIP switches to fine-tune performance. Refer to the table below for functional status descriptions and corresponding RPM limits.

NIBBI CDI Functional Status Description DIP Switch Settings

Image: NIBBI CDI Functional Status Description. Toggle switches to ON position for 0, and to bottom position for 1. K1, K2, K3 are speed limit adjustment switches. K4 is the infinite speed switch.

To adjust:

  1. Locate the DIP switches on the CDI unit.
  2. Use a small tool (e.g., a small screwdriver) to toggle the switches to the desired ON (0) or OFF (1) positions according to the table.
  3. Switch K4 controls the infinite speed mode: 0 is off, 1 is on.

6.2 Overvoltage Protection

The CDI unit includes an overvoltage protection feature. If the voltage exceeds 30V, an LED light on the unit will flash. If the voltage exceeds 40V, the igniter will activate over-voltage protection and stop working to prevent damage to your motorcycle's electrical system. If this occurs, check your motorcycle's charging system and battery voltage.

CDI Overvoltage Warning

Image: CDI Overvoltage Warning. LED blinking means voltage exceeded.

7. Maintenance

7.1 Ignition Coil

  • Periodically inspect the ignition coil for any signs of physical damage, cracks, or loose connections.
  • Ensure the high-tension lead and low-tension wires are securely attached and free from corrosion.
  • Keep the coil clean and free from dirt, oil, and moisture.

7.2 CDI Ignition Unit Box

  • Ensure the CDI unit is securely mounted and its connections are tight.
  • Keep the unit clean and dry.
  • The soft rubber wrapping protects internal components from thermal expansion and contraction, ensuring long service life.

7.3 Spark Plug

  • Inspect the spark plug at regular intervals (refer to your motorcycle's service manual for recommended intervals).
  • Check for signs of wear, fouling, or damage to the electrodes.
  • Replace the spark plug if it shows significant wear or damage to maintain optimal engine performance.

8. Troubleshooting

8.1 Common Ignition System Issues

If you experience any of the following problems, your ignition system may require attention:

  • Power Reduction
  • High Fuel Cost
  • Hard to Start
  • Weak Acceleration
  • Easy Misfire
Common Motorcycle Problems

Image: Common motorcycle problems that can be addressed by a high-quality ignition system.

8.2 Specific Troubleshooting Steps

  • No Spark / Weak Spark:
    1. Check all wiring connections to the ignition coil and CDI unit for looseness or corrosion.
    2. Ensure the spark plug is correctly installed and the gap is appropriate (though NIBBI plugs are pre-gapped).
    3. Test the ignition coil and CDI unit if possible (professional diagnostic tools may be required).
  • Engine Misfires / Rough Idling:
    1. Inspect the spark plug for fouling or damage.
    2. Verify the CDI DIP switch settings are appropriate for your engine's requirements.
    3. Check for proper grounding of all components.
  • CDI Overvoltage LED Flashing:
    1. This indicates the voltage supplied to the CDI is too high (over 30V).
    2. Immediately check your motorcycle's battery voltage and charging system (stator, rectifier/regulator).
    3. If the voltage exceeds 40V, the CDI will shut down for protection. Address the overvoltage issue before restarting.

9. User Tips

  • Users have reported improved engine stability and faster revving after installing NIBBI ignition components.
  • Ensure the length of the ignition coil's high-tension lead is suitable for your motorcycle; excessive length can be trimmed if necessary, but confirm suitability before cutting.
  • For optimal performance, ensure your carburetor is properly tuned after installing new ignition components.

10. Warranty and Support

NIBBI products are manufactured to high-quality standards. For any issues or support, please contact your retailer or NIBBI customer service. Keep your purchase receipt as proof of purchase.

11. Additional Resources

For a detailed user manual in PDF format, please refer to the official document: NIBBI Racing Ignition System User Manual (PDF).

Ask a question about this manual

Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.

After a successful submission, we securely hash the supplied account or form email before sending it to Microsoft Advertising for conversion attribution. Privacy details.