Any opinions on what is the correct float level with a Amal Mk1 Premier concentric fitted with the 'new' stay up float and how to set it?
I tried setting it with the top of the float 0.080 below the top edge of the float bowl but the problem us that the top of the float is NOT level. With the edge furthest from the float pivot 0.080 below the bowl edge, the edge of the float adjacent to the pivot is ABOVE the bowl edge and actually holds the float down resulting in the float needle being held open when the carb is assembled.
So I kept adjusting the float level till I got to the point where the float needle actually closed once the carb was assembled.
I tried setting it with the top of the float 0.080 below the top edge of the float bowl but the problem us that the top of the float is NOT level. With the edge furthest from the float pivot 0.080 below the bowl edge, the edge of the float adjacent to the pivot is ABOVE the bowl edge and actually holds the float down resulting in the float needle being held open when the carb is assembled.
So I kept adjusting the float level till I got to the point where the float needle actually closed once the carb was assembled.