Replacement GY6 CDI Unit - AC

Replacement CDI Unit for GY6 Four-Stroke Scooters

This CDI unit is made to replace the original on GY6 four-stroke scooters, including the QMB139 models. It controls the timing of the spark that fires the engine. When you notice hard starting, misfiring, or no spark at all, swapping in this part can bring your scooter's performance back. It is one of the GY6 scooter parts that is simple to install.

Function Overview

The CDI and ignition coil operate together to produce the spark that lights the fuel mixture. A faulty CDI can cause starting problems or misfires, so replacing it helps the engine run reliably again.

Specifications

• Size: 66.6mm x 38mm
• Connector: 6 pin (split 4/2)
• Current Type: AC - Alternating Current
• Origin: Made in Taiwan
• Fits: QMB139/GY6 four-stroke scooters with a 6 pin split 4/2 AC CDI connector

Compatibility

Compatible with:

• QMB139/GY6 four-stroke scooters (6 pin connector split 4/2)

Selection tip: Confirm that your existing CDI has a 6 pin split 4/2 connector and AC current type, and that its dimensions are 66.6mm x 38mm.

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