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Carb Float Issues


Discussion at Motorized Bicycle Engine Kit Forum in the Motorized Bicycle General Discussion forum. I took apart my carb and adjusted the float, but I noticed that the plastic circular doughnut that does the ...
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Old 06-12-2008, 10:13 PM
Motorized Bicycle Apprentice
 
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Default Carb Float Issues

I took apart my carb and adjusted the float, but I noticed that the plastic circular doughnut that does the actual floating is partially filled with fuel. Is this normal? If not, this could be why my float is malfunctioning. Anybody have this problem?
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Old 06-12-2008, 10:15 PM
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Default Re: Carb Float Issues

Haven't seen it but it makes sense that it would cause an overfill problem. Drain it and seal the leak. Then you should be good to go.
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Old 06-12-2008, 11:35 PM
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Default Re: Carb Float Issues

Just to clarify.... do you mean that the float, separated from everything and held up to a light source behind it, has fuel inside it? Definitely need a new one if you can find one.
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Old 06-12-2008, 11:37 PM
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Default Re: Carb Float Issues

dont dry it in the oven
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Old 06-13-2008, 07:10 AM
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Default Re: Carb Float Issues

Let it drain and either seal it with a soldering iron, or some gasoline proof material like polyester resin (the stuff you do automotive body work with- not bondo, but the resing for fibre glass)...or order a new one from one of the vendors.
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Old 06-13-2008, 07:11 AM
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Default Re: Carb Float Issues

Also, once you get it fixed, you'll find you didn't need a float adjustment.
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Old 06-13-2008, 01:33 PM
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Default Re: Carb Float Issues

Yes the fuel is actually inside the plastic float (after it has been completely taken apart). I think I will try an epoxy I have to fill the leak. Thanks to all for the feedback, I will let you know how it works out. Thanks again.
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Old 06-13-2008, 04:32 PM
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Default Re: Carb Float Issues

a fix like epoxy adds weight to the float, not much i know, but any weight will change the operation of your carb
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Old 06-13-2008, 06:24 PM
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Default Re: Carb Float Issues

you might have better luck checking with one of the engine sellers for a float epoxy will dislove in gas unless you can get some epoxy called safetypoxy used to build airplanes and their fuel tanks. The patch should be kept very small so it won't weigh down the float. I haven't had to mess with the float yet but if its the seam you might try superglue and use bakingsoda rubed into the seam or crack and put just a touch of superglue on the soda.
with fuel or fuel vapors inside the float you have a small bomb if hit with enough heat to set off the vapors.
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