hi. some times my bike doesn't start. when it occurred i checked the spark and there were no sparks in all 4 plugs. so at the same time i checked the pickup coil and it showed open circuit. but after sometimes when i checked it again it showed correct ohm reading. so what i did was just plugged the coil again and started the bike and it worked fine. the problem is i can't predict when it occurs and when it works again itself. this happens only in start up sometimes. it doesn't matter whether the engine is cold or hot, the pick up coil goes bad. but when the engine runs, it works really well. no miss firing or any other problem regarding the spark. i'm hoping to replace this pickup coil. i checked the two wires with multi meter for any damage and they were ok too. just wondering why it's not working only in start up sometimes. please give some advice. thank you.