What should the plug gap be? Today I went for a run cold 3c but dry. On return I washed the car & decided to check the plug gap to see if starting could be improved. The book says 0.97 to 1.07 mm but the ones removed were nearer 0.65 mm (0.025 inch). They are the standard Champion RA8HC copper tip. I opened them up & it would not start. I checked an old plug from last service & it was 0.65 so removed them & closed gap again but still wont start. There are sparks & it seems to be trying to catch after much turning over.
Perhaps my washing made something shorting out. Pushed in to the garage & battery on charge & I'll try again after thing had a chance to dry.
Tim