carb and tube wiring problems. desperately need help

[Chris.t.Collins]

I am not a guru like kerry but did you replace the plugs?  That bites me every few years on cars and bikes.

[ktrim]

check the float on center stand.  Kerry is right it is the two holes in pict 7 and 8 of the link he posted.  the holes are low speed air bleeds.  when the slides are closed air is drawn thru them and siphons fuel out of the bowls.  this also affects low -mid throttle.  on mine it would not run with the choke off unless i got the rpms really high and kept them there by feathering the throttle.  if i tried to hold it at any rpm it would slowly die but could be brought back by feathering the throttle.

[Soaring]

ok, I think I am going crazy... I went to check the level on center stand and the levels are in fact very close to the gasket, about .1". Does it make a difference?

now I start the bike and I am actually able to turn off the choke after a while and it runs fine. so I figured if bike is going to fix itself I'll go and check whether both cyliders work... and what I find out is that the one that was working fine works even better and the one that wouldn't work without throttle now has no spark at all

Here's a comparison of what I had before and what I have now:

before: wouldn't run without choke, bike runs on left cylinder but hardly makes it if you reconnect the left spark sound improves dramatically. Now the bike runs on the left cylider only if you apply some throttle to keep the rpm high enough.

now: bike runs without choke, bike runs on left cylinder beautifully even without the right one, but now the right one doesn't have a spark at all.

and I didn't do anything to the bike as far as I can remember....

any ideas? I am totally lost  :dunno: