Topic: Pilot screw issue

[WFO]

This is on a quad and i just rebuilt the carb and it has the spring on it but it keeps backing out after a few minutes of riding question is does anybody have any ideas how to fix this problem, and would thread lock work?

[kslrr]

Is there an empty notch on the pilot screw like there should be an o-ring, or if there is an 0-ring, is it dry and shrunk?

[WFO]

Is there an empty notch on the pilot screw like there should be an o-ring, or if there is an 0-ring, is it dry and shrunk?

It's all brand new and i don't think it had a notch ( i will look at the old one)

[WFO]

update: yes it has a groove for the o-ring but it's brand new.

[KingCustomCycles.com]

Get it adjusted and coat with blue rtv silicone around the top. It is removeable with your fingernail and seals nicely.  I also used to use fuel line over the needle valve on model aircraft engines when they would back out.  Same idea.