Your stock electrical system is AC power and has a floating ground, so it's ground to the frame. I could be wrong, but I don't think the CDI unit will run off DC power, so you'll have to maintain an AC circuit for it. That means everything on the DC side will need it's own ground wire back to the DC system.
Jul 19, 2018 · The basic CDI system is a trigger mechanism, coils, and a box, often black, with capacitors and other circuitry inside. The trigger tells the box to fire, the box determines when to fire which coil with the capacitors, and zap goes the spark plug, ad infinitum. In addition to dischargin’ those capacitors, the box may also influence your rev ... The 4-pin side may have 3 or 4 wires connected to it (both AC and DC versions). If the 2-pin connector has onlyg to it, it's a DC CDI. If there are 2 wires attached to the 2-pin connector, then it's an AC CDI.
A 6-12 volt battery is connected to DC to DC converter i.e. power circuit through the ignition switch, which is designed to give or increase the voltage to 250-350 volts. This high voltage is used to charge the tank capacitor (or condenser) to this voltage through the charging resistance. The charging resistanceSean: Unfortunately, CDI boxes have to be built to the specific vehicle in question.The function of an ignition control module such as a CDI box is to create spark at juuuuust the right moment to account for combustion lag and cause the spark to ignite the air/fuel mix correctly in conjunction with the piston's stroke.Because ignition characteristics (particularly timing) vary widely across ...
The scooter originally used AC voltage directly from the stator/magneto to power the lights and the AC powered CDI(capacitor discharge ignition) but, I have changed that and am now running a setup where everything is powered from an 8ah powersports battery. So, new and fewer LED lights and a DC CDI.Answer (1 of 3): Either. A CDI charges a capacitor and then discharges the capacitor to make a spark. A DC CDI is powered from the battery or rectifier. An AC CDI is powered directly from the alternator and has its own rectifier.
Gary 08' Hammerhead SS 250 HH aftermarket exhaust, UNI 2 stage filter, 38 pilot jet-main jet 130, 30mm Pumper carburetor, (Stock)DC CDI, aftermarket ones are junk... with Coil, red torque spring, 20 g sliders, Dr. Pulley race variator kit. .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 66 x width 38 x height 23 mm or length 58 x width 33 x height 23 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 23 mm or length 96 x width 55 x height 24 mm .Certainly this size is only for your common original ...CDI Is It AC or DC. Search. Library. Log in. Sign up. Watch fullscreen. 6 years ago. CDI Is It AC or DC. Newell Huey. Follow. 6 years ago. CDI Is It AC or DC. Report. Browse more videos.Answer (1 of 3): Either. A CDI charges a capacitor and then discharges the capacitor to make a spark. A DC CDI is powered from the battery or rectifier. An AC CDI is powered directly from the alternator and has its own rectifier.
The AC powered ignition was the Achilles heel of an otherwise stone reliable ATV. Unfortunately, the price to replace with an upgraded Polaris kit was well over $500 and it was the only option. With our new Ignition Fix Kit, we convert your problematic 2002/2003/2004 Sportsman 700 AC ignition to a much more reliable DC ignition at less than ...Ac cdi Ac cdi
CDI Module Box for 600cc Yamaha 660 YFM660F Grizzly 2004-2008. Trustpilot Custom Widget. 5 out of five star rating on Trustpilot. 1 review. Item #: 160-02091. Was: Now: $57.02. Add to Cart Fitments & Details.CDI Box for Honda 88-93 TRX300 FourTrax ATV. Part #: IHA6033. List Price: $135.00. Regular Price: $69.99. Sale $39.88. Add to Compare. This aftermarket CDI is a direct replacement of your OEM. CDI NOTE: This CDI is sold without a warranty and is non-returnable.
There is no CDI system that can be said to be better than the other but each is good in different situations. The DC-CDI works well in areas where there is extreme cold temperatures and is very precise during ignition. The AC-CDI on the other hand, is simpler and rarely runs into problems.1,317 Posts. #6 · Nov 17, 2004. Kaw700, Not sure of the actual degree of the FST cdi I think it is 33* so a key will work also not sure of the rev limit either. Dyna's cdi is 35* no need for a key and has a 10,000 rpm limiter much better than the 8500 of stock. With stock cams you would be hard pressed to exceed 9000 rpm maybe in neutral but ...Universal Parts Performance Racing CDI for the 250cc water-cooled 172mm engine found on Chinese street-legal scooters, ATVs, Dune Buggies and Karts. Please see our Warranty & Returns Policy. Back. 6 Pin Connection, 2/4 Split. Length: 3.7 inches. Width: 2 inches. Height: 1.25 inches. Wire Length (including plug): 6 inches. Voltage: DC.
CDI, is yours AC or DC, well check out this video and this will help determine if you have an AC or DC CDI in your GY6 scooter or buggy. MonsterGY6 tries to make it easier. Your source for all GY6 Performance PartsCDI (Capacitor Discharge Igniter) The capacitor is charged via a direct connection with voltage from the ACG or the battery, or the voltage is increased to charge the capacitor. The charged electrical load is discharged all at once, generating a high voltage on the secondary side of the coil, initiating ignition and combustion.
CDI works on all GY6 50cc/150cc scooters made in China using the 139QMB/157QMJ enigine with AC pulse. The simple way to tell if you have AC or DC pulse is size of the CDI, find yours in your scooter compare size buy focusing on plug and surrounding area. DC pulse CDI have the circuit that change voltage from AC to DC which all stators produce AC.GY6 150cc DC Ignition No Spark Tune-up Kit (No rev limit and intense spark) $59.99. Add to cart. Quick view. Plastic Cover for Engine Wiring [Type C] $22.99. Add to cart. Quick view. GY6 150cc AC Ignition No Spark Tune-up Kit (No rev limit and intense spark)
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The 5 pin CDI is an AC unit, intended to work on bikes where the CDI is powered by an AC coil within the stator. The 6 pin type are for DC systems, where the CDI is powered from a battery. As long as you have the right one (AC or DC), and its wired correctly these units will work on almost all bikes.Likewise, what is AC CDI and DC CDI? The AC-CDI ignition system is the most common CDI in small engines. The module gets its power solely from the alternator in form of alternating current. DC-CDI. This kind of CDI is powered by a battery. The system comes with a DC/AC inverter circuit to raise the voltage from the 12V DC up to 400-600 V DC ...