How to fix a choke plug air leak?

[CafeRookie]

I recently rebuild the carbs for my 1981 GS550. I noticed one of the choke plugs seemed to be leaking air. Now that I've put the carbs on my bike it is running lean. I've checked everything else for air leaks and I'm assuming it's the leaky choke plug. Any suggestions for how to fix that? Is there a gasket that needs to be replaced? I didn't see any when I had the carbs torn apart.

Any help is appreicated.

Thanks!

[zed1015]

What do you mean by choke plug.
If you mean the choke plunger then the bike will run richer if they are leaking.
As for repairing them i offer a worldwide service that replaces the worn seats with ethanol resistant Viton for a permanent fix.
I'm the only person worldwide that does this.
MIKUNI Choke plunger seat replacement and Air corrector jets for GS fours VM's - The GSResources Forums
As for your lean condition, even if the dust seal on the plunger shaft was leaking or the 'O' ring or fibre washer was missing or damaged that is sometimes fitted under the securing nut it would not draw enough air past the plunger to make a noticable difference to the fuel mixture and i would be looking elsewhere for the cause of that.

[CafeRookie]

Ok. Thanks for that info. I did mean the choke plunger. Thanks for your input.