Is this normal on carburetors?

[Merkurio24]

Please check the video..

http://www.youtube.com/watch?v=U2ucOkrCNyM

and this is ever worse!

http://www.youtube.com/watch?v=V5xqMTbSfeU

[krypto35]

couldn't you have just asked "is it normal for the right slide to move when cranking while the left one sits still?"    and to my knowledge, no - carbs are supposed to move in syncronization.  you may have a vacuum leak - is the vacuum hose attached from the left carb to the fuel petcock?

[trumpetguy]

OR, you may have very bad balance between the carbs. 

I agree to check for the vacuum leak, but also do the same test with throttle wide open and see if the left slide moves.  If not, move it with your finger to see if it is stuck. 

If it's stuck, you have a problem and need to fix that.  If it's not stuck and doesn't move with throttle open, then you have a massive vacuum leak on that side somewhere (vacuum hose or carb boot to head leak).

[Merkurio24]

couldn't you have just asked "is it normal for the right slide to move when cranking while the left one sits still?"    and to my knowledge, no - carbs are supposed to move in syncronization.  you may have a vacuum leak - is the vacuum hose attached from the left carb to the fuel petcock?

The vaccum hose is attached to the fuel petcock and left carburetor.

[Merkurio24]

OR, you may have very bad balance between the carbs. 

I agree to check for the vacuum leak, but also do the same test with throttle wide open and see if the left slide moves.  If not, move it with your finger to see if it is stuck. 

If it's stuck, you have a problem and need to fix that.  If it's not stuck and doesn't move with throttle open, then you have a massive vacuum leak on that side somewhere (vacuum hose or carb boot to head leak).

I did oppen the throttle half and all the way, and the left slide moves freely. Here is another video of something I find even more F#^ked up!

http://www.youtube.com/watch?v=V5xqMTbSfeU

[Willy Willy]

+1 on vacuum leak. just spray some wd40 or carb cleaner around the carbs, petcock area while the bike is running. if idle changes in an area you just sprayed, thats where the leak is.

[Wrecent_Wryder]

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[Merkurio24]

The vaccum hose is attached to the fuel petcock and left carburetor.

Or right carburetor, depending on the year.

The bike is a '94.....

[Egaeus]

Check your fuel hoses.  There might be an obstruction.  Assuming you have a full tank, that is. 

The bike's running lean, even on ON. You need to figure out why.