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Leaky float, worth saving?

  • Tom P
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Leaky float, worth saving? was created by Tom P

Under the category of, it's always something. I'd noticed what looked like a little bit of gas overflowing from the left side of bowl when I had bike on the kickstand. Went for a long ride and when I got back, gas just started flowing out of the overflow.

Took the carb apart, and one of the floats has a lot of corrosion and is weeping. Had enough gas in it that it wouldn't allow the needle valve to seat. Drilled a hole and it's draining out, I wonder if this is worth saving? I'm thinking maybe I can smear some thin solder over the entire surface, or would that make it too heavy?  
13 Aug 2022 19:37 #1

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Replied by asco on topic Leaky float, worth saving?

Replace the entire carburetor or just the float. If you have a mini torch and some silver solder you probably could fix it? I’m thinking new / used is $40 bucks.

a
YAMA-LAND RESTORATIONS, 818-521-2109 This email address is being protected from spambots. You need JavaScript enabled to view it. 1971 CT1-C (BRANDY) 1970 DT1-C (MONICA) 1972 AT2M (ARNOLD ZIFFLE) 1970 CT1-B ( INCREDIBLE HULK ) 1971 DT1E ( JORDON) 1970 CT1-B (CLIDE) 1971 AT1-C (BONNIE) 1968 DT1 (UNCLE DON).
13 Aug 2022 19:47 #2

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Replied by RT325 on topic Leaky float, worth saving?

Where was it getting in,--around the original soldering. Just a small dob of solder should be ok if you can avoid bits dropping in & rattling around before you seal the hole. But what about original leak. Float or carb might be easy enough to find.
13 Aug 2022 19:51 #3

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Replied by Tom P on topic Leaky float, worth saving?

I think the leaking out the side was that I just didn't torque down the four bowl screws real tight when I recently put the carb back on. I'm always cautious to try not to strip anything out. I'm working on it now, I'm doing a little bit of sanding and I'm going to try to spread some solder on it. The rest of the carburetor is in great shape, so if anything I would just get a new float. But we'll see what happens. I appreciate the replies.

By the way it looked like it was leaking out of three spots, you can sort of see them in one of the pictures I think little tiny holes. That's why I'm going to sand it down and try to smear solder over the entire surface.
Last edit: 13 Aug 2022 20:14 by Tom P.
13 Aug 2022 19:57 #4

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Replied by Dennis D on topic Leaky float, worth saving?

Be real careful with a flame around that float. Don't ask how I know.
 
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13 Aug 2022 20:50 #5

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Replied by Tom P on topic Leaky float, worth saving?

Well after my first attempt, I tried soaking it in a tub of rubbing alcohol, and it seemed to be taking on just a little bit, so I'm going to abandon it for tonight. By the way, I made sure not to put any flames around it, I used a heat gun gently just to heat it up a little bit to evaporate whatever was left inside.

I'll look around and see if any are available, if not, I may give it another shot.
13 Aug 2022 20:58 #6

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Replied by Tom P on topic Leaky float, worth saving?

After looking at it again, I think maybe just a little piece of solder fell inside with flux. I drilled another hole, and no liquid came out. I heated it up, and that may have loosened up the flux because then it seemed like a tiny bit of solder was shaking around. So I put a broader tip on my soldering iron, and tried to put a better coat of solder along the area in question, and sanded it as much as I could. I put it in a closed container of water, and will leave it overnight to see if it's leaking now. The first picture is after I drilled one hole and cleaned it up before soldering. Second picture is after I drilled the second hole, then gave it another coat of solder and sanding. If you look at the first picture I posted in the OP, it looks like there were three pinhole areas that were leaking, which is where the dark spots are.

  
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Last edit: 13 Aug 2022 22:01 by Tom P.
13 Aug 2022 21:45 #7

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Replied by Ht1kid on topic Leaky float, worth saving?

Well I guess we’ll see in morning fingers crossed 
13 Aug 2022 22:12 #8

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Replied by RT325 on topic Leaky float, worth saving?

You're fast becoming the expert on soldering floats. Good onya for giving it a go & hope it works out.
14 Aug 2022 04:13 #9

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Replied by Tom P on topic Leaky float, worth saving?

Well it looks like the repair on that one side is okay, but I noticed the float was floating a little lower on the other side. So I went ahead and drilled a hole in the other side and sure enough a little bit of gasoline came out. It wasn't a piece of solder I was hearing, it was just gas in the other float. I identified a couple spots where it was weeping by using a heat gun and watching two areas get wet, so I attempted to repair, but the first one didn't work. So I'm still working on it. By the way it is very difficult to solder over even a tiny hole, because it heats up the air inside the float, and as soon as I take the soldering iron away it blows the solder away from the hole.
14 Aug 2022 08:22 #10

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