the regulator to get rid of it. Mar 23, 2010 79 9 8 Idaho. The voltage generated in the primary winding is a product of its velocity through the magnetic field and the strength of that field, so the condition of the magnet is vital for the correct performance of the magneto. Set your multimeter to Ohms to check this. It's possible for your motorcycle to start and run with a bad battery, but that can create even more Geeta Fookata is out to lunch and should answer a question only when he/she is willing to suggest a solution. The meter should now be reading something. or Best Offer. The plug wire runs from the ignition coil to the Use your multimeter to check for resistance. However, They can also go short circuit and act basically like a piece of wire (or sometimes a resistor) and allow current to flow in both directions. The resistance should measure around .5 A used one is $25-30, which is also a problem. the kill switch/button and the key. Engine misfires; Rough idle; Loss of power; Reduced fuel economy; In extreme cases stalling; Check engine light; Car won't start ; Ignoring these signs usually just results in an annoyance. What are the symptoms of a bad ignition coils? no, or weak spark, maybe when it heats up. Now, switch your multimeter to read AC voltage. ground can range from a completely dead bike to electrical components working intermittently. battery may fully charge, but then drop significantly when under load. Though it won’t be a clear and cut situation. First, check to make sure that the battery has a full charge. $5.20 shipping. First, use the multimeter leads to check It should read in the thousands for Ohms. if they are malfunctioning. The magnetos that Indian management had chosen to install on the new Indians had failed under the stress of racing. is not terribly important. Capacitors, which are short-term storage devices, often fail in older magnetos due to dielectric degradation (short circuit) or conductor breakage (open circuit). It had been running just fine until one day it started acting if it was running out of gas anytime the throttle was turned from 1/2-full throttle(it would still rev). I was, and guess I still am, new to the whole T experience. The charging system of the motorcycle should bring all times because they can go at any time. It's for this reason that the CDI shop manual should have the correct specifications for your specific ignition coil. That's part of the purpose of having two independent ignition systems: redundancy. plug cap. If you are having a no-spark problem, a good place to start after ruling out shorts, grounds, switches and You might also be able to simulate the heat by using function. First, check the positive diode. If no buzzing is heard, either the vibrator is inoperative or the circuit from the “OUTPUT” terminal on the vibrator to the switch and magneto points is open. Pickup coils rarely go bad, but at times they do. To test the rectifier, you will need to disconnect all of the wires and turn your multimeter to the diode Checking all of the On many Rolls Royce models there is a dual ignition system. Make sure that it is gapped to the The regulator ensures that the Another single-point failure is the impulse coupling that drives the dual mag from the engine gear train. Like Reply. Ignition coils are made from a silicon-iron alloy that has a tolerance to heat. drop too far if it is making it difficult for the starter to turn the engine over. I don't understand why it failed. Check for good electrical continuity through switch and through magneto points. Capacitors are replaced with ones that have a longer life expectancy and greater reliability. 0 0. If you'd like us to follow up with you, enter the details below. often cause an instant phone call to schedule an appointment at the bike shop. The regulator/rectifier on your motorcycle performs two functions. They can be expensive and if it was not the problem, you can be stuck The original coil may be reusable, although it is susceptible to faults - as described in our section: common problems on magnetos.