Float level - numpty guide

Hi all, and please indulge my next few basic questions-
I have read (perhaps a little too much and now overloaded/ getting confused) lots of the posts around carb setting after cleaning.
I've been having ago at the clear tube level checking of fuel levels and want to make sure I'm pretty much on track, so in very simple terms:
Ive cleaned carbs, connected clear tubes and filled float bowls via the fuel line (till it is full to the brim of the pipe.)
I then open the drain skrew and watch the pipes fill with fuel, then close the drain back up and compare levels in tubes (all correct so far?)

Question- adjusting the flat height- this is done by bending the stopper tang on the float bracket (must be better way to describe it but I'm sure you get the idea)- this is right?

The most important factor is they are the same level.

On one occasion (I'm upto about 3 so far) one of the tubes lost fuel internally (ie the level went down but no obvious pool of fuel on bench) any ideas what or why?

Thanks for helping and if I'm missing the point do tell me

 

Not quite. One does not close the drain screw when checking the level.

Read through this handy guide and see if it helps any. Much will be explained.

 

You need to clamp the carbs to a "jig" of some sort the resembles how they sit on the bike. Level and square. Then make up an IV bottle with fuel in it. Let the carbs fill up and see where your levels are. Remove fuel and repeat untill your carbs are adjusted correctly.
The important part is the fuel has to flow into the carbs and have enough pressure from weight of the fuel to work the needles and seats. My IV set up has a cheap lawn mower valve inline. When I need to drain the float bowls and remove them I can shut the fuel off. It's a little work but once you make your jig it makes the float level work a lot easier than on the bike.
Mine is just a 2X8 board with a stop on it the outbound side of the carbs rest on. I use a pair of quick clamps to hold the carbs on. The IV is just a large funnel with a hose and valve that I plug onto the carb fuel fitting.
Hope that helps

 

Thanks guys, still getting my head around this site and finding things once never to be seen again (I'd seen the tubing pic a while ago but could I find it again) nice to know which part of the float to bend!

Q- The jet skrews are all in a slightly different postion (as in the recesses where the skrewdriver goes) some are pointing 2 to 7 (as if on a clock face) and others are pointing 10 to 4, shall I leave them alone or try and get hem looking more inline with each other ( and which one) or should I be a little more patient and set the heights before I mess with other stuff (which might not be broken)

 

If you haven't removed the pilot screws and cleaned their passages your carbs aren't clean. You can't just adjust them based on the position of the slots.

Gently screw each one in until it stops, making note of how many turns were required to do so.

Then remove them, inspect/replace the little o-ring that's under there, and flush out those passages too.

Are you working on Mikunis or Hitachis?