jedwards
15th April 2023, 05:05 PM
Gentlemen, I've always struggled with setting the float height on various carburettors I've had of the  decades. 
Most require you to bend the float lever, and some require various washer thicknesses to pack out the Float needle, and some suggest measuring the distance between the top cover's mating surfaces and the top of the float.
What I am interested to learn from this experienced group is what is the most accurate (and least complex ) way of determining the point where the float needle closes.
Ive read that on the Soles 32PBI-2 Carburettor, the float shut -off point should be 16mm down from the top cover mating surface to the top of the float, who just closed. But what is the best way to detriment the shut off point?
I usually remove the carb from the vehicle, pour fuel into a clear plastic tube connected to the carb's fuel input port. When the level of fuel in the plastic tube stops going down, I assume that the needle is closed. I can then take off the top cover (trying not to spoil any fuel) and measure the float height.
This always seems to be a very messy way of doing it and I cannot see the pros doing so much work for such a simple task, that would need doing on every tune up.
Are there any better ways of doing this?
Any insights greatly appreciated.
regards and best wishes to all,
Jeff in Perth.
Most require you to bend the float lever, and some require various washer thicknesses to pack out the Float needle, and some suggest measuring the distance between the top cover's mating surfaces and the top of the float.
What I am interested to learn from this experienced group is what is the most accurate (and least complex ) way of determining the point where the float needle closes.
Ive read that on the Soles 32PBI-2 Carburettor, the float shut -off point should be 16mm down from the top cover mating surface to the top of the float, who just closed. But what is the best way to detriment the shut off point?
I usually remove the carb from the vehicle, pour fuel into a clear plastic tube connected to the carb's fuel input port. When the level of fuel in the plastic tube stops going down, I assume that the needle is closed. I can then take off the top cover (trying not to spoil any fuel) and measure the float height.
This always seems to be a very messy way of doing it and I cannot see the pros doing so much work for such a simple task, that would need doing on every tune up.
Are there any better ways of doing this?
Any insights greatly appreciated.
regards and best wishes to all,
Jeff in Perth.