I have split the carb rack to delve into the crusty interior of some very sad looking units. The float chamber and top gaskets are good but the o rings on the seat valve and main jet have disintegrated and those on the t fuel hose joint have hardened. I don't need a carb repair kit from DS or a full gasket kit really just the o rings. I can use an 8 mm x 2 mm on the t joint ( parts book says 7.8 x 1.9 ) but the o rings for s v is 5.7 x 1.3 and m j is 4.2 x 1.1 and standard o rings are 1/1.5/2 mm etc and 1.5 mm is just too heavy thickness to seat inside the chamber. Any advice on where to buy these individually rather than buying the full carb seal kit. I hate replacing anything that can be reused but will fall on the sword if necessary, so should I lose the cash or is there an alternative spending minimum £45?
