Joe, during my 35 years with my A-4 I replaced the key switch twice for a weak connection. I now have the same problem with my Yanmar. Last season the "key cover" tether snapped. I kept it in the binoc box on the pedestal until someone tossed it in the trash. Now using a WD-40 cap as a cover until I can get out to get a new one. I even started it once with a screwdriver across the solenoid.
I have sprayed it and it seems to be working now. I may just replace the switch if I have any problems. Last time out it took 2 twists to make contact.
Dave Neptune
