ich werde alles nötige am Wochenende umsetzten!
hier die Antwort:
We stress this to our dealers and has also been outlined in most of our literature. The SmartCarb (as with any float bowl carburetor) must have proper isolation from engine vibration and harsh contact with the frame or engine cases. Understandably there is little room under the cowling of a classic scooter and the fitment of an SC2 smartcarb on classic Vespa's and some other makes requires careful attention to installation. In the video above it can be clearly seen that the carburetor is shaking. This shaking is causing the fuel in the float bowl to aerate and then puke fuel out the vent scoop. Recently we have worked with customers in the US who have experienced the same issue. Several things can cause this. 1. the carburetor does not have adequate rubber isolation from the intake mounting flange and is receiving frequency vibration from the engine. A short piece of a fairly stiff durometer hose, attached with two hose clamps is recommended. (Also, and very important, it cannot touch the meta engine intake flange to the carburetor spigot by being pushing the carburetor too far inside the hose.) A small gap is necessary. 2. It has been discovered that on some older Vespa's the carburetor will indeed touch the frame and rub slightly on the bottom of the float bowl. This touching will also cause the fuel to froth. 3. Inadequate support of the carburetor, in the absence of an airbox to support the inlet end of the carburetor, solution number 1 becomes more important. In reviewing this video it is evident the carburetor is shaking violently and may likely be intermittently touching on the bottom of the float bowl. We have many customers having great success on their classic scooters but we must stress the importance of the installation. We stand ready to serve those customers who may be experiencing these issues and can provide additional customer support if necessary.