Topic: '76 F float level - help needed

[JohnG]

hi
I have a box stock 1976 CB750F.  I have the carbs off and would like to set the float levels  (they may never have been checked).

I have a float level gauge and the Shop Manual  (I think it says 26 mm).

Here is my question:  if I put the gauge under the floats (it is essentially U shaped) and against the bottom of the carb, on my stock carbs there is an indentation about 1/4" wide where this would happen. Do I put the float gauge into the indentation??  It is right beside the float on each side.  This makes a difference of 1-2 mm in the setting.

OR should I remove the rubber float bowl gasket and put the gauge against the bottom of the carb where the gasket just was??

In other words - the 26mm setting is a measure between the bottom of the float just as it closes and . . precisely what surface ??

         many thanks!
         John

[gregimotis]

I have the same bike and had to make the same decision:

I made a measuring tool and split the difference by setting it against the inside rim of the gasket lip.  I made sure every bowl had the same height and I haven't had any problems since.

Someone who knows or sure will probably be along shortly but I suspect a millimeter up or down won't have a significant effect as long as the bowls are the same within that range.


Another problem I had was getting the gasket in properly so it didn't hang up on the float later, and cleaning everything off the hinge assembly (scotchbrites and pipe cleaners)

[Chester345]

From the top lip, same bike as you.  This site had a wealth of knowledge for me in the tuning stages of my learning...

http://www.salocal.com/sohc/tech/float_tool/float_gauge.htm

(750F's are the best)   

[JohnG]

Thanks , guys!  That is exactly the information I was looking for.

Great carbs to work on... just finished working on the CVs that came with the DOHC models from 79 on . . . what a nightmare!!!

Measured them and they are all off by quite a bit so this is worthwhile.
The motor is out having some oil leaks fixed and this is a good time to fine tune things.

         thanks again

             john

[andy1976]

(750F's are the best)    

Amen.

I mesured my carbs with the gasket seals off. Seems OK.

Andy