I have read where to avoid problems on the Evinrude 200's carb models that there are some changes/updates that should be made. Like re-jetting # 2 carb & replacing a o ring in the carb ? I have a 1997 Evinrude 200 Oceanpro model # E200TXEUA serial # G04307226. Could someone please tell me what is needed and part #'s & easy steps on how to do it. Thanks,,