dank86
09-03-2009, 10:55 AM
New member. I have been doing a little bit of work on my recently acquired 1999 300ex. Nothing big, carb rebuild, new battery, new tires, chain, basic maintenance, etc. When I put the quad back together I seemed to have an electrical problem. At the ignition switch I am getting 4.5 volts with all wire connected. With some testing I have narrowed down the two wires that are causing the 8 volt drop. It is the black wire leading into the reverse inhibitor unit and the black and white wire leading into the igntion control module. Even with these disconnected I cannot get anything to turn on. Is there any way to test these two black boxes? I have checked all of the wires to make sure they are not damaged, all the connections are good and all ground points are solid. Please help. I hate electrical problems.