Question about float needle and seat installation

[Guest]

I just recieved my replacement float needles and seats and noticed that on the needles the posts push in and out on the old ones they are solid or frozen up does this make any difference?and also do i just push in the seats or should i put some kind of lube on the o ring and twist it back and forth, i just dont want to mess em up

[tkent02]

I just recieved my replacement float needles and seats and noticed that on the needles the posts push in and out on the old ones they are solid or frozen up does this make any difference?and also do i just push in the seats or should i put some kind of lube on the o ring and twist it back and forth, i just dont want to mess em up

The pin on the needle should be spring loaded, if they get stuck shoot some carb cleaner in there and work the little pin in and out a bit. Sometimes the spring gets too weak. They just drop into the seat, no need for lube or anything. If your are tight you probably bent it out of round pulling it out with pliers.

[Kiwi Canuck]

I just recieved my replacement float needles and seats and noticed that on the needles the posts push in and out on the old ones they are solid or frozen up does this make any difference?and also do i just push in the seats or should i put some kind of lube on the o ring and twist it back and forth, i just dont want to mess em up

I always use a small amount of synthetic grease on the valve needle seat oring and carefully apply pressure until the seat pushes in, don't force it as you may pinch the oring. it can be a rather snug fit.

[Nessism]

Check this link for info on how to rebuild GS carbs...http://www.mtsac.edu/~cliff/storage/...d_Tutorial.pdf

[Kiwi Canuck]

Check this link for info on how to rebuild GS carbs...http://www.mtsac.edu/~cliff/storage/...d_Tutorial.pdf

Ed, I just re-read that carb rebuild piece you posted and learnt a few things I didn't pickup the first few times I read it.
I've rebuilt a few sets of carbs now and I'm amazed that I learn something new every time I read your carb rebuild instructions.

The once piece I'm still a bit cautious around is how to know when I've bottomed out the pilot screws and not gone to far, (or not enough) should you be able to feel the tip through the top of the throat of the carb ?
I have been turning them in until I feel a slight resistance, then backing them out 2 1/2 turns. I have had a couple of screws that were very hard to remove and they are quite firm and hard to get a feel for when reinstalling, I've tried finding a bottoming tap to cleanup the threads but have not found one yet so I just have to do it by best guess. I believe the thread is 6mm X .05.