3rd carb popping

[irishluck]

so i had to replace a cylinder head cover bolt, got it replaced, put carbs bk on and hooked lines up.  turn the bike on and idles fine. when i go to rev it up, the third carb from the left makes a popping noise and  a white puff of smoke comes out of the back of the carb

anyone knopw whats going on?

[SlowOldGuy]

Several possibilities:
Lean idle circuit
Cracked plug or questionable plug wire
Leaking vacuum plug on synch port.

DavidR.

[ribbert]

 It could even be crossed leads. Some combinations could produce those symptoms and if revving stationary, not particularly noticeable at idle. It's at least worth checking - always eliminate the obvious and the easy first.
Noel

[irishluck]

ya but it was weird cause  right before i replaced the head cover bolt it ran just fine

[ribbert]

ya but it was weird cause  right before i replaced the head cover bolt it ran just fine

My Irish is a bit rusty.  Does this mean it's fixed?

[irishluck]

well it is now, just found out a couple drops of water got into it. That's why it popped and had a puff of white smoke out the back of carb