Re: 1986 ? evinrude 50 specs?
The Clymers manual says:<br />Champion QL77JC4 or L77JC4 gaped AT .040" for sustained low speed.<br />Champion QUL77V or UL77V non-adjust gap for sustained high speed.<br />WOT rpm will depend on your boat and prop. Do a search on the site for previous post that explain choosing the prop. Also, there are numerous adjustments to make before the engine will run properly. You might consider getting a shop manual.<br />Chas