Be proactive with Pilot Air Needle/Idle Mixture Screws

[Guest]

While doing my carb rebuild I had a pilot air needle that I felt would possibly strip out the next time I tried to remove it if it had some grime in the threads.

To prevent this from a happening, before installing your needles take a Dremel with a small cutting disc and gently deepen the slot in the screw head. Be sure that you carefully remove any burrs or shavings from the needle before installing it.

The next time you or another owner tries to remove them, they won't end up in the carb/exhaust forum posting about how to remove a stuck needle!

[7981GS]

I also chase the threads and carefully place just a touch of anti-seize on the threads of the jet before installation also.

Eric

[Steve]

You want to be even MORE pro-active?

Take the rubber plugs that you removed from the pilot fuel jets and put them in the tops of the mixture screw towers to keep the crud out.

You did put new rubber plugs in, didn't you?

.

[7981GS]

You want to be even MORE pro-active?

Take the old rubber plugs that you removed from the pilot fuel jets and put them in the tops of the mixture screw towers to keep the crud out.

Not a bad idea at all as they have no other use.

Eric

[chuck hahn]

But if you have VM carbs you wont have any extra rubber plugs!!!! In fact, you wont have any!!!!

[7981GS]

But if you have VM carbs you wont have any extra rubber plugs!!!! In fact, you wont have any!!!!

You can put your fingers over the screws.

Eric

[Steve]

But if you have VM carbs you wont have any extra rubber plugs!!!! In fact, you wont have any!!!!

That's perfectly fine. You don't have any mixture screws to put them over, either.

.

[chuck hahn]

Correct Steve..but I was thinking about capping the pilot screws up in the bottom to keep crud from them.