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What is this and why is there gas leaking...

2018 Views 18 Replies 9 Participants Last post by  Miss Mercedes, 
TheWhiteRabbit
Leaking extremely slow but it's leaking.

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jag13
Hard to tell by the photo, and not knowing what bike or where it is located. But my guess is that it is a fuel gauge sending unit.
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Oz
Too close up to tell if that is the bottom of your fuel tank. If it is, that is probably the electrical connection to your fuel pump, or as Jag said.
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TheWhiteRabbit
jag13 said:
Hard to tell by the photo, and not knowing what bike or where it is located. But my guess is that it is a fuel gauge sending unit.
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It's located under the under the seat (most front of it) it's the gold box I'm referring too and yeah looks like it's connected to the gas tank
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SemiFast
Still not telling what year, model or brand of bike? .... Well judging from the green ground wire, Honda?
The 'gold box' looks like the bottom of a fuel gauge sending unit. If that's what it is there is a float connected to it.
The rubber seal / gasket is leaking.
On the other hand..... It could be a power band depending on what year, model and brand of bike. :devil:
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Miss Mercedes
OP has an Icebear PMZ125. Based on some GY6 and Icebear part searches, that's the fuel level sender. Since you bought it new, the dealership should be able to get you a new one under warranty. :)
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TheWhiteRabbit
They're sending me the whole thing as of warranty which is good but took it to Kevin Powell. It's just the gasket apparently. But don't know where to get that gasket as of right now and need this fixed today.. Looks like 4 bolts but don't know if gasoline is gonna just pour on my face when I'm taking it off lol Never had this problem before. But apparently a common problem with newer bikes? If it's just the gasket, I can do that. Just don't know if I should empty the fuel first, ect
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jag13
Basic common sense would tell you that if it's leaking gas, then you know there is fuel there, so of course you need to empty the tank first!
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TheWhiteRabbit
Okay well, drained the gas. Removed the fuel sending unit.. There was no gasket? Put some gasket maker puddy stuff on it, put it back on, made sure it was nice and snug. Let it dry for a few hours and added gas back and still leaking... so..? What does this even do? Just makes my fuel gauge read how much gas is in it? I see two wires connected. If this is the only purpose of it, I can just plug the hole entirely in theory and say screw it and let it read empty/full all the time. Unless it's somehow telling my engine/carb how much fuel to flow? Anyone know the science of it or thoughts?
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SemiFast
Miss Mercedes said:
OP has an Icebear PMZ125. Based on some GY6 and Icebear part searches, that's the fuel level sender. Since you bought it new, the dealership should be able to get you a new one under warranty. :)
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Thanks Hun,
This is the second time you've had to answer the question about what bike it is for this OP.
I didn't notice it was the same member name as the sprocket change question person.
Might be easier just to PM you when we need to know this kind of stuff.... Lol

For those that don't know, the more we know about a machine, the better quality answers you get.
Stuff like size of engine, make, model, year model, mileage and anything else you can think of that might help.
Just sayin.
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hogcowboy
TheWhiteRabbit said:
Okay well, drained the gas. Removed the fuel sending unit.. There was no gasket? Put some gasket maker puddy stuff on it, put it back on, made sure it was nice and snug. Let it dry for a few hours and added gas back and still leaking... so..? What does this even do? Just makes my fuel gauge read how much gas is in it? I see two wires connected. If this is the only purpose of it, I can just plug the hole entirely in theory and say screw it and let it read empty/full all the time. Unless it's somehow telling my engine/carb how much fuel to flow? Anyone know the science of it or thoughts?
Click to expand...
You may not have allowed the gasket stuff to properly cure. And you've not indicated exactly where it's leaking. Around one of the screw/holes or near the center. It might take that new unit to fix it or you might need some gasket material and make a gasket then put the gasket putty on both sides of the new gasket you made then let it cure some(24 hrs?) before adding fuel. I'm thinking right now that you just didn't let the stuff cure long enough before putting the weight of the fuel back in or it's leaking somewhere other than the screw holes. Would be nice to know these details. It's not a good idea to remove it though. Just looking at it, that could be 5 holes you'd have to plug but would also be a waste of function. People complain that they don't have a fuel gauge all the time. The next owner would cuss you to no end.:crying: Not that you'd care.:angel:
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jag13
IF they are sending you a new one (under warranty), and it is leaking very slowly, why don't you leave well enough alone before you screw it up to the point that you void the warranty? The new part should come with a new gasket. So let the dealership do the work.

Anyone else notice that the ground wire doesn't appear to be fastened with anything? It's an eyelet with no bolt thru it. Shouldn't it be fastened thru one of the mounting bolts?
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Miss Mercedes
TheWhiteRabbit said:
Okay well, drained the gas. Removed the fuel sending unit.. There was no gasket? Put some gasket maker puddy stuff on it, put it back on, made sure it was nice and snug. Let it dry for a few hours and added gas back and still leaking... so..? What does this even do? Just makes my fuel gauge read how much gas is in it? I see two wires connected. If this is the only purpose of it, I can just plug the hole entirely in theory and say screw it and let it read empty/full all the time. Unless it's somehow telling my engine/carb how much fuel to flow? Anyone know the science of it or thoughts?
Click to expand...
Honestly I'm still not 100% sure what that thing even is. Fuel level sensors in Chinese bikes are usually plastic units passing through a metal bracket. Yours has the metal bracket but it doesn't have the gaping hole with the sensor passing through it.

I want to assume that what we're looking at is a next gen Chinese fuel level sensor...But it looks like leaking fuel level sensors aren't often reported on the Grom clones on the Chinese bike forums, so I don't have any other pics for reference other than blurry Google image results. But I mean, what else could it be? Chinese bikes are still pretty simple with the most automation being a fuel sensor or ABS.
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TheWhiteRabbit
You guys get fiesty lol I did say what the problem was, I said I took it to get looked at and they said it's the gasket causing the leak.. but, there wasn't a gasket period. So I bought gasket maker, let it sit til "tacky" and put it back on, and allowed it to cure for 7hrs which it only said 6 on the package. Then added fuel back, the leak contuined. And how the hell would I mess up the warranty by taking 4 simple bolts off and adding gasket maker. I don't have two weeks to wait for the part to ride. This is my main source of transportation so of course I'm going to see what I can do to fix it in the meantime. And this bike was shipped to me, no local dealership. Warranty simply covers parts, I do the work.
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Stainlesstehle
TheWhiteRabbit said:
You guys get fiesty lol I did say what the problem was, I said I took it to get looked at and they said it's the gasket causing the leak.. but, there wasn't a gasket period. So I bought gasket maker, let it sit til "tacky" and put it back on, and allowed it to cure for 7hrs which it only said 6 on the package. Then added fuel back, the leak contuined. And how the hell would I mess up the warranty by taking 4 simple bolts off and adding gasket maker. I don't have two weeks to wait for the part to ride. This is my main source of transportation so of course I'm going to see what I can do to fix it in the meantime. And this bike was shipped to me, no local dealership. Warranty simply covers parts, I do the work.
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No reason to be upset friend, people here have only the information given (or not given), and beyond that we can only speculate.

Can you see exactly where the gas is coming out?
- outside edge?
- around a bolt?
- center from wires?

Given what you said, about instant gasket, I wonder if you didn't have the surfaces clean enough?
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SemiFast
Gasket maker putty stuff that will withstand fuel?
Where can I get some, what brand is it and exactly what is it called?
A pic along with the above information would be great!
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C
you can buy gasket material at any auto parts store and punches at harbor freight for like 9 piece hollow punch 8.99 20% online coupon all day, every day. make your own.
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cc rider
Might have used the wrong type of sealant. Or....maybe you should just use what the manufacturer used. There are several forms of transportation out there. Now, you still have a problem and did all that for nothing. There is a reason why manufacturers spend millions on engineering. One application might require a paper gasket, one might require a sealant, one might require an oring, etc.
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Miss Mercedes
TheWhiteRabbit said:
And this bike was shipped to me, no local dealership. Warranty simply covers parts, I do the work.
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Good to note for if/when I buy a new Chinese bike! I didn't know that!
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