Hello, we have a Master Bj. 86 with a 2L gasoline machine. 80hp Since we have the problem that the crazy much consumed, 20-22L on 100 km. It was already in two workshops, which could not do anything, I changed the contact ignition for an electronic fullmax, a new ignition coil, candles, air filters, everything does nothing. The spark plugs are raven black, even really rusty. So it runs much too fat. Now I have looked again into the repair instructions of Renault. And as incredible as it sounds, in the repair book is clearly shown a “additional mixing regulator screw” and also described that the idle speed is set above. Only, it is that the screw is completely missing from my carburetor.The channel is simply open, they have set the stationary gas simply on the gas train.At TÜV here called Bilprovningen this was also not a topic since the CO value with 2.0 complied Can it be that the missing additional mixing regulator screw of the puzzle solution is ? Does anyone have a source for parts for a Solex 35 seia carburettor ? A detonation drawing if necessary.with part numbers ? Data for a basic setting ?