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Rubber jet plug?

  • Thread starter Thread starter whalford1
  • Start date Start date
W

whalford1

Guest
I'm in the process of working on my 1982 GS1100GL carburetors. With the float bowl removed, there is a rubber plug that is inserted in to one of the holes for one of the jets on each carb.

(1) What's the name of this jet??

(2) What is the reason and/or function of the plug?

(3) Is there anything to be gained by removing the plug?

Thanks, William.
 
That's the pilot jet plug, it allows the pilot circuit to draw off the main I believe. Leave it alone, it wont run worth a crap without it. Others may be able to give a better explanation but it needs to be there
 
It is the pilot jet. The pilot jet is fed through the main jet on that bike. You need the plug for it to work. It seems odd, but that is how it is designed.
 
Don't know the official name, but it's generically known as the "rubber plug".

Yes, there is something to gain by removing it. :-k

You will gain a poorly-running bike that will not run above an idle.

.
 
Thanks guys. I wanted to be sure that I needed to keep them before I reassembled the carbs.
 
If they're hardened & don't fit "firmly" into that hole, they must be replaced. You don't want them falling out when you're on the road.
 
nastyjones said:
If they're hardened & don't fit "firmly" into that hole, they must be replaced. You don't want them falling out when you're on the road.
Click to expand...
The only way they are going to fall out when on the road is if the float bowl falls off.

If that happens, losing the rubber plug is the least of your problems. :D

.
 
What Steve Said-

What Steve Said-

Actually, the inside of the bowl itself has an 'extrusion' as part of the casting which keeps the rubber plug set in place, of course, if the plug got really hard, it might allow more fuel into that pilot jet circuit.
 
In other words they must be there, and if they are crappy, replace them.....

It's just one less thing to worry about...

.
 
When I took them out, they all were tight enough to not come out real easily. Fortunately, I have a spare set of carbs that I can rob parts off of, just in case I need some.
 
850 Combat said:
It seems odd, but that is how it is designed.
Click to expand...
It's the result of "manufacturing process" I think. A hole must be drilled so the pilot jet can be installed/removed but the fuel delivery system requires there to be no hole so the rubber plug is used .... I think! :D
 
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