Racing AC CDI & Ignition Coil 125C 150CC GY6 For HONDA XR50 XR70 XR80 XR100 CRF50 XR CRF 50 70 100

Racing AC CDI & Ignition Coil 125C 150CC GY6 For HONDA XR50 XR70 XR80 XR100 CRF50 XR CRF 50 70 100 Description: This spark plug is a high peformance racing 3 electrode spark plug. This is a high performance racing CDI for the GY6 50cc, 125cc, and 150cc 139QMB, 152QMI and 157QMJ based engines. It's 6pins,this CDI works with the GY6 type plug on it, with an AC ignition system. This CDI is similar to our orange performance CDI but has a more aggressive ignition advance curve. This is a performance CDI. We have the best quality ignition parts for Chinese engines. Specification: This is a AC CDI. Plug and Play installation makes installation a breeze. If your CDI has the same plug, this will work for you. High tension performance racing ignition coil for 50cc QMB139 and 150cc/125cc GY6 engine based scooters, ATVs, Go Karts, Mopeds. The special tight coil design made for current resistance that increases the firing speed. Fitment: Honda XR50 2000 - 2003 Honda XR70 XR70R 1997 - 2003 Honda XR80 XR80R using CDI ignition Honda XR100 XR100R using CDI ignition Mechanics Note on Distinguishing AC Fired or DC Fired CDI Box : 1. In the GY6 6-plug set-up, you have AC if you have 3-wires going into the 4-plug side and you have 2-wires going into the 2-plug side. On the other hand, you have DC if you have the larger CDI box, 3 or 4 wires going into the 4-plug side and only 1 wire going into the 2-plug side. 2. In general, the DC CDI's tend to be larger in size than the AC ones.For example the common AC fired CDI box is length 65 x width 36 x height 22 mm or length 58 x width 33 x height 22 mm but common DC fired CDI box is larger than AC fired cdi box in size ,suze as length 75 x width 42 x height 24 mm or length 96 x width 55 x height 24 mm . Certainly this size is only for your common original CDI Box reference,don't include the racing cdi box size ,please note. 3. Another test is if the headlights turn on without the engine running, (with just the key on) it is a DC system. In the AC system the headlight requires the engine to be running. Another indication is, if the engine will only run with a battery it is DC. If it will run without a battery, it is a AC system. Note: Please check the size measurement chart carefully before making a payment. Please allow 0.1-0.5cm difference due to manual measurement. Package Included: 1 X Racing CDI 1X Ignition Coil 1x Spark Plug