I have two late 70's era Honda 4 strokes (b75 and bf75), one short and one long shaft. Ignition coils (points engines) have been a problem with these and one of mine stopped working. Bought a 'New Old Stock'' in the package coil for $200 and put it on last week. Finally got the boat out yesterday and it purred like a kitten all day. Started with an easy single pull numerous times. Noticed a bit of an oil slick at the dock and upon checking it out the engine main seal appears to be leaking... Grrrrrrrrrr!