floats adjusted to specs. but not working right

[Guest]

this might sound silly but would it be possible that the vent and vacuum lines got mixed up at the carbs? mine has 1 vacuum line (from the fuel valve) and 2 vent lines (go to the airbox rear) and when they got mixed up when i installed them after a few beers she puked just like you described until i got them switched around.

I had the same thought...

[matt_gs450]

I think you want them at 26mm. That 22mm value in the Clymer manual must be for some other float design other than the brass ones. And if you look at the level on my carbs (in my linked thread) with the adjustment at 26mm, it's basically perfect. About 5mm below the float bowl gasket.

I'm curious what you mean when you say the bike wasn't running well at 25mm. That could have been a mixture screw issue. Setting it at 2 turns out worked great for me.

Good luck,
Matt

[rkubik]

Same thing happened to me. The carb bowl vent lines have the wrong routing.

The fix is easy. Remove the vent lines, just pull them right off.