99 YZ400 float height


1 reply to this topic
  • Dafan

Posted August 25, 2004 - 07:23 PM

#1

Hi can anyone tell me what the stock float height is for a 99 YZ 400? It has the round floats instead of the square 426 floats. Thanks

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  • Big_D

Posted August 25, 2004 - 10:56 PM

#2

The Stock float height is 9mm.

Here is the Clymer procedure (which actually makes sense):

>Remove Carb
>Remove Float Bowl
>Lightly touch the float to ensure the float valve is seated
>Hold the carb so the float valve remains seated, but the spring loaded pin in the valve is not being compressed by the tab on the float.
>Measure the distance from the float bowl gasket to the highest point on the float. (9mm)
>If the float height is incorrect, bend the float tab in the appropriate direction and recheck.
>Reinstall float bowl.
>Reinstall carb.

The actual procedure says to remove the float to bend the tab but if you use a tiny screwdriver or pick to adjust the tab carefully there is no need.

Just had to redo mine yesterday. :thumbsup:





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