I bought a BF75 knowing it had no spark, thinking I could easily repair it. However it has become a little more than I expected. After replacing virtually every part, and testing all the voltages, I am no closer than when I started. The out put of the CDI to the coil, is a pulse of about 12v, I believe this should be much much higher, like 250v. which leads me to believe the CDI module is bad. I have 250v pulse from exciter coil, 6v pulse from the cam coil. (did mention all of these items have been replaced including the coil?) ANY HELP would be greatly appreciated!