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pilot jet keeps falling out (Read 172 times)
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Re: pilot jet keeps falling out
Reply #15 - 01/29/18 at 14:14:33
 
Gary_in_NJ wrote on 01/29/18 at 08:30:19:
Is this a previously owned bike? Sounds like a PO stripped the carb body. I hate to suggest this one, but it's safe if you are happy with the jetting - why not loctite the pilot jet into the carb body? Another method would be to braze it with some solder. With either approach, that jet will be a permanent fixture in the carb.



That was my first thought too, a stripped pilot jet bore in the carb body, especially with it falling out multiple times; it's stripped.
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justin_o_guy2
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Re: pilot jet keeps falling out
Reply #16 - 01/29/18 at 15:45:00
 
Determine the condition of the threads by feeling of it when it's almost screwed in. If it's not something you can just rip out, the threads are still somewhat engaged.
Options exist.
A bit of solder in the jets threads maybe.
It's a brass jet. Maybe IT is more damaged than the carburetor threads.
Get a new one. See what happens. FEEL of it.
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Gary_in_NJ
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Re: pilot jet keeps falling out
Reply #17 - 01/29/18 at 16:24:26
 
justin_o_guy2 wrote on 01/29/18 at 15:45:00:
It's a brass jet. Maybe IT is more damaged than the carburetor threads.
Get a new one. See what happens.  



That is the logical first step.
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Re: pilot jet keeps falling out
Reply #18 - 01/29/18 at 16:30:25
 
A visual inspection should be able to show you.
A nut the same thread as the carburetor would certainly show you.
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Re: pilot jet keeps falling out
Reply #19 - 01/30/18 at 03:08:26
 
batman wrote on 01/29/18 at 13:25:37:
I'm not sure Epoxy will hold up to gasoline ,but if it would you could use it on the threads. the jet would be removable by applying a little heat, as it softens at only 150 degrees F.


Most epoxy and even RTV is not fuel proof, and will dissolve pretty quickly when exposed to gasoline....even tough JB Weld.

I drilled a couple small holes in the side of a can, and applied a dab of RTV gasket sealant on one hole and JB Weld on the other.  They both started leaking in a few hours.

You might try a piece of rubber tubing that fits tightly in the hole.  Put the jet in, then wiggle a small length of the rubber tubing underneath the jet.
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Re: pilot jet keeps falling out
Reply #20 - 01/30/18 at 12:06:38
 
Shrink tube?
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Re: pilot jet keeps falling out
Reply #21 - 01/30/18 at 12:38:10
 
I have used JB Weld with good results on carbs. Gas and vibration doesn't seem to affect it, even years later.
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Re: pilot jet keeps falling out
Reply #22 - 01/30/18 at 12:58:55
 
I could make you a threaded plug that you could tap in over the pilot to keep in place.
And you could put a screw in it to yank it out.
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