Topic: Setting Float Heights...

[Zeke]

Hey All:

First of all I've gotl the manuals for my bike including the Honda one.  1980 cb650.

The picture shows using a special tool for measureing, and to be honest the old black and white pic isn't very good.

What tools do you all use to measure it? 

Does anyone have a good picture showing how it's done?

Thanks,

Zeke

[Bob Wessner]

Zeke,

The special tool is hard to come by, at least for my older 750. I found a small ruler with a sliding "T" on it at my local hardware store, it measured both mm and inches. I believe it was made by Stanley? I don't know if your carbs are different, but I put the end of the ruler on the side of carb body, the edge where the bowl attaches, and the slide the "T" portion down to the correct height. The carb body should be held sideways with the tab/tang attached to the floats just barely touching the float valve, don't depress the spring loaded little button on the end of the float needle. Depending on how it looks, you may have to gently bend the tab leading from the bowls one way or the other. Hope this makes sense.

[Zeke]

Yeah, it makes sense.

So you're saying that basically you are measuring from T on the ruler to the flat part of the float, right?

Thanks,

Zeke

[Bob Wessner]

Take a look at this page, the last photo. Disregard the way the carbs are oriented in the picture, you have to hold them at an angle so the tab just touches the float needle.

http://www.salocal.com/sohc/tech/carb/asmpg_mgs/flthgt.htm

[Zeke]

Thanks, Bob.  That makes it clearer.

My float is shaped a bit different, but to describe it in few words you are measuring from the bottom of carb body (gasket surf) to the bottom of the float WHILE float is barely in contact with needle.

Right on.  You have to love these info forums, yeah?

Zeke

[ChevelleSSLS6]

I was told by someone that the line (seam?) in the float had to be level to something... I forgot... either the ground (bike on level surface) or carb bowl/carb body mating surface (which I don't think it is since they're at a slight angle forward).
-Matt

[bobsmith]

The bowl mounting surface is held vertical. If you dont have a metric scale, multiply by .03937 to ger inches.