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TOPIC: float needle valve removal

float needle valve removal 11 months 2 weeks ago #1

installing a jet kit and rebuilding entire carb while im at it. im hung up! cant get the float needle valve to come out. scared to bang on it. What do?
IMG_20120609_161856.jpg
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Re: float needle valve removal 11 months 2 weeks ago #2

Well if you are not in a hurry I would soak it with PB Blaster or the equivalent for a day or so then give it another try. It will come loose.

I never have the patience for that, and would have ruined it already. :P
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Last Edit: 11 months 2 weeks ago by itgoes.
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Re: float needle valve removal 11 months 2 weeks ago #3

Looking at picture wondering why you want the seat out of the carb. I have never had one bad. the needle just fits inside that seat and shuts off or lets fuel in according to float
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Re: float needle valve removal 11 months 2 weeks ago #4

so theres nothing to hang it up in there then it just needs pressure to pop this cap out the other side?
IMG_20120609_1934261.jpg

?
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Re: float needle valve removal 11 months 2 weeks ago #5

IMG_20120609_204157.jpg

when i went to pull the float out it was stuck a little and you can see where it was scored on the inside ( not the marks on the rim that was my foolish attempt to press it out.) :nononono: .
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Last Edit: 11 months 2 weeks ago by tweed.
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Re: float needle valve removal 11 months 2 weeks ago #6

Drill a small Hole into the Brass Cap on the other Side of the Valve Seat. Be careful and don't go too deep. Put a Wood Screw in the Hole, get it to bite and wiggle the Brass Cap out. The Valve Seat will come out easily when the Plug is removed.

But since those Brass Plugs are not listed in the Parts Cataloge, you better have someone with a Lathe make a new one for you.
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Re: float needle valve removal 11 months 2 weeks ago #7

:bow: thanks sqeeze! you seem to always come through for me!!!!
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Re: float needle valve removal 11 months 2 weeks ago #8

Hey, i'm sorry, just one on my bad Habits ...





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Re: float needle valve removal 11 months 1 week ago #9

The brass cover plug on top is "staked" in four places with a punch. To get the plug out, use a small (~1/8 or 3/32") drill to drill a SHALLOW hole just deep enough to remove the staking/deformation at each of the four locations, but not all the way through the plug. It will come out easily, and the seat can be removed. You can re-use this plug by staking it with a punch in different locations when you re-install it. Just don't drill all the way through it.

Also there is a strainer screen in there that, especially in the Left-Rear carb, will be corroded because it's a low point and that's where water drops in first if there is any in the fuel. If you don't use a replacement screen, scrub the old one or soak it in an oxalic acid solution (the screen not the carb body) and clean it up. It's stainless, which in the presence of water galvanically reacts with the carb body metal and clogs up, so it should be cleaned thoroughly.
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Last Edit: 11 months 1 week ago by vmx12.2.
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