I have a 7.5hp clinton seaking s/n 1380505 model k751 type KTV50575B, number on base of coil mount is 268-0086-50, that started fine last fall won't start this spring. No spark, is there a way to check coil and electronic box. I'm guessing little white box is electronic ignition(no points). Is there a reasonably priced place to buy parts for this motor. Motor is in very good condition would rather fix than sell for parts. Thank for any help.