Hi,
My boat recently ran out of fuel. After this it has now been running poorly. It is difficult to cold start, idles ok and starts perfectly once warm, but requires a bit of a rev to stay running when cold. It also revs perfectly in neutral. It will run ok up to about 1500-2500 rpm, and from then on it runs very rough, occasionally running properly and reving through ok, but not often. I have had the carburettors rebuilt, after been told this was the culprit by a boat mechanic, however this didn't work. I have since been told that it could be the reed valves or perhaps the labyrinth seals. Is it likely to be one of those things or is it something else. Help would be much appreciated.
My boat recently ran out of fuel. After this it has now been running poorly. It is difficult to cold start, idles ok and starts perfectly once warm, but requires a bit of a rev to stay running when cold. It also revs perfectly in neutral. It will run ok up to about 1500-2500 rpm, and from then on it runs very rough, occasionally running properly and reving through ok, but not often. I have had the carburettors rebuilt, after been told this was the culprit by a boat mechanic, however this didn't work. I have since been told that it could be the reed valves or perhaps the labyrinth seals. Is it likely to be one of those things or is it something else. Help would be much appreciated.