so what DO I do....
Last Thursday , finally had my rib in the water at Nieuport ( Belgium)- after an extensive refit of practically everything -
Engines - all fuelines , tanks, filters clean, blown out, ect No work done on carbs as this was done last November.
Tubes - all cleaned and valves checked / valves taken off and tubes inspected for wear
Hull - scrapped and repainted
Electronics- all checked and Ok'd
So in the water at 1000 hrs. - ticking over like a watch - 15 minutes to the entrance at 1500 rpms/engine - still going like a dream then hit the outlet into a force 5 and we are off....... 10 minutes later and some 5 nms outside niewport -- both engines say good by!!!!!!!!!!!!!!!!!!!!!! They were running like a dream.....both primers firm and fuel coming to engines but not a sign of life. Eventually manged to get one engine going again but only for 10 minutes then stopped. Limped back into my berth using a paddle.............. I did get a cheer from some young things on the jetty.. but that was it.
All this is to advise people is to have some kind of back up engine. Next week will take all the carbs down .... and Yamaha and myself will probably part company. The engines have less than 150 hrs/piece and they have always being a source of problem- even when new.
In the meantime anubody have any ideas on what happened?? - remember they were going fantasically well for about 20 minutes
I will proably replace the yams with suzukies- thanks to codprawn.