I have an 1972 Evinrude boat motor 125 hp model # is 125283R I am having trouble getting any fire to my spark plugs, this old motor has a I belive to be a module this is the part right before the power pack and after the rectifier. Can anyone point me in the right direction as how to check and test to see if this is right or how can I get a parts list to see if I am looking at the right part. Is there something else I should look for.