I bought this Kiekhaefer Merc 200 a couple of years ago for $200. It starts and runs great. It has been forgiving of ignorance but I would like to know the proper oil/gas mixture and any preventative tips you could share. I don't want to ruin this motor it has been the most reliable and powerful small engine I have ever used on my 16' jonboat also the proper gap for the plugs?
