MS4 Lumenition Performance Ignition Optronic Mega Spark 4 Coil (inc ballast res)

MS4 Lumenition Optronic Ignition System<br/> <p class="s3"><span class="s2">Checking </span><span class="s2">For</span><span class="s2"> a Ballast Resistor</span></p> <p class="s3">  </p> <p class="s4"><span class="s5">Note: </span><span class="s6">This test involves the use of a voltmeter suitable for reading voltages from </span></p> <p class="s4"><span class="s6">0-15 volts.</span></p> <p class="s4"><span class="s5">Step 1: </span><span class="s6">Disconnect the lead or leads connected</span><span class="s6"> to the negative - terminal on</span><span class="s6"> the coil.</span></p> <p class="s4"><span class="s5">Step 2: </span><span class="s6">With a suitable length of wire, connect one </span><span class="s6">end to the Coil Negative – </span><span class="s6">terminal and the other end to an earth point.</span></p> <p class="s4"><span class="s5">Step 3</span><span class="s5">:</span> <span class="s6">Connect the voltmeter to the positive + terminal</span><span class="s6"> on the coil.</span></p> <p class="s4"><span class="s5">Step 4: </span><span class="s6">Switch on the ignition. The voltmeter should read battery voltage</span><span class="s6">.</span></p> <p class="s4"><span class="s6">With the ignition still On.</span></p> <p class="s4"><span class="s7">- </span><span class="s6">If the voltage on the voltmeter remains at battery voltage, there is no ballast resistor present in circuit.</span></p> <p class="s4"><span class="s7">- </span><span class="s6">If the ballast resistor is present in the circuit, the voltage will drop to approximately 9v volts.</span></p> <p class="s4"><span class="s5">Step 5: </span><span class="s6">Immediately switch off ignition.</span></p> <p class="s4"> </p> <p class="s4"><span class="s5">Note: </span><span class="s6">Never leave the earth lead connected to the coil for more than is required for the test, as</span><span class="s6"> c</span><span class="s6">ontinued</span><span class="s6"> connection will result in an overheated, damaged coil and a drained battery.</span></p>