Boring route is normally the safe route, but just to make you happy, I had to try the exiting route as well....

 

There you go!

 

Time to dunk the carbs and clean out the tank, continue to foul plugs and the choke seems to be off. Can anyone identify the rubber seal on the outside of Carb #1, and how do I remove it?

 

Same plug/seal on outside of carb #4, connected to throttle linkage...

On another note, it appears that this bike has been breathing some hard air. How sensitive are these carbs to defects? It's nicked up pretty good inside carb #2.

 

Don't bother trying to remove those, just make sure any jets are blown through with air

 

Thanks for the response. I've dunked carbs #2 and #3 in carb cleaner, would like to soak 1 and 4 as well, but won't do so if there's no way to remove that rubber seal.

Any thoughts on the nicks inside of carb #2? I have a spare set of carbs that I can pull from if i need to replace that...

 

Concerning the nicks, I'm guessing that at sometime a PO was trying to perform a bench sync or something and something went awry with whatever they were using.
They shouldn't affect anything. Other than the butterfly valve, there aren't any moving parts in that area. And the area where it lands looks to be fine. The passageway for the needle valve doesn't appear to have any damage to it.

 

Thanks for the quick response, i'll leave that as is for now.

Now I need to either recondition some of the o-rings (pilot jets didn't have o-ring or washer previously) or buy some new ones...

 

My recommendation is to buy new ones. FWIW, Harbor Freights sells o-ring kits that are gasoline safe. You can buy an entire ASE and an entire metric kit for cheaper that buying 0-rings one at a time.

 

Good point, sounds like there's a trip to HF later today. Looks like their metric kit has the right sizes as well...