Topic: We're to measure float height on cb550 k3 1977

[Honellie]

Hi all, first post on this site so hello all. My question is on a1977 cb550 k3 with pd46a carbs were do I take the 14.5 mm measurement from, is from the tip of the float with the flat side , or like on the cb550f from the top of the float. Hope this makes sense. All the best mick

[alacrity]

there is a super awesome PDF you can download from a few places on the web that is free and gives really detailed step by step instructions on this particular carb rack.
As for this measurement, it's the highest point of the float, or, if you imagine the carbs hanging from the manifolds on the bike, it's the point of the float that touches the liquid first, because as the liquid then rises, so does the float, and your measurement (on all these carbs) is to be in charge of precisely determining WHERE that happens, and that it happens identically in all 4.  Capeesh?

[flybox1]

For illustrative purposes only.  Your carb will look different, but the measured planes are the same.

[Bikegtxcr]

 I know I'm a little late for this post but where did you find your float height? 14.5mm? As in what publication/manual.

[sixthwisconsin]

I know I'm a little late for this post but where did you find your float height? 14.5mm? As in what publication/manual.

Just do this and don't worry about measuring. This is WAY more accurate no matter how carefully you measure. Your carbs may differ with the drain screw but the principal remains the same. Hook up your clear tube to the drain and turn on the gas.