Hi, I have had this problem since first owning my bike !!!! over fuelling, air box full of gas and running into the engine !!. Not realising what the problem was until close inspection, Bad plug fouling ect ect. Recently I have removed the carbs, set up a stand on my workbench. With spirt level set up so perfect, gauge tubes fitted so a visible float level can be set up.
The problem is, when looking in the official workshop manual it only gives you a float gauge "Tube Type" measurement. Most bikes I have ever worked on always give you a FLOAT HIGHT. I Started when I first stripped down the bowls. just to get a starting line I put a 4mm drill bit under the tab of the float. Over night this was over fuelling on all 3 . Cut a long story very short. The tabs are now bent up to accommodate 6.5 mm drill bit fitting under the tab (this is a snug fit.) Floats Tested them in glass jars with Gas, over a 3 week period, fully submerged and weighed them before and after, no problem here. Warning ! if you go up to 7 or 7.5 mm you will shut the valve off. But at 6.5mm This is the very first time I have seen the Carbs stable. I would like thoughts on this please. Happy new year to all you Guy's from England.
