Carb sync tool

[Ancient]

Hi all!

I always had a strange phenomenom on my carb sync tool...

Is it normal that the needles switch back and forth between the value say 3, and the value 0 like 10 times by second. Crazy needles.... ? or normal ?

Hope explanation is clear, sorry for poor english

+ my carbs desync very often.

Does that mean my carb line has a problem (sucking air then not sucking then sucking air 10x/second) ?

Kawa ZZR600 4 carbs 16 valves 4 strokes, Kehein carbs

Regards!

[Ancient]

Note the tool on the pic is not mine but I have the exact same one, on that pic the needles seem to stay fixed to the correct values

[Wayward Son]

you have to use the knobs to limit the air to stabilize the needles.

mecury sticks are a better way to do this.they are much more accurate and stabil.

[Ancient]

Oh that's the usage of those nobs! Great thanks