I have a 1992 Evinrude 70HP, in pretty good condition and good service history.

Around 12 months ago, while driving along, the motor would 'miss' for a split second, then keep running, it would only do this once on every trip.

Now the motor is 'breaking down', sort of like a fuel blockage, does this for about 5 seconds, then clears and fires back up to normal revs. But it is doing this on about 4 occasions every trip.

However, when heading back in from fishing, the motor can run fine for the 15/20 minute trip back to the ramp, doesnt miss a beat.

Mechanic has gone over the motor on the past 2 services, cant find anything obvious, and cant re-create the issue while running the motor at home.

Any body had similar issues before ??