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| | | | | Motorized Bicycle General Discussion Topics on bicycle engine kits, help articles, repair and modifications for your motorized bicycles | 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 ...  | 
06-12-2008, 10:13 PM
| | Motorized Bicycle Apprentice | | Join Date: Jun 2008 Location: Indiana
Posts: 19
| | 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?
__________________ Cycofast | 
06-12-2008, 10:15 PM
|  | Master Motorized Bicycle Builder | | Join Date: Mar 2008 Location: Bellingham, WA
Posts: 176
| | 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. | 
06-12-2008, 11:35 PM
|  | Master Motorized Bicycle Builder | | Join Date: May 2008 Location: Santa Cruiz, CA
Posts: 118
| | 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. | 
06-12-2008, 11:37 PM
| | Master Motorized Bicycle Builder | | Join Date: May 2008 Location: north bend wa.
Posts: 290
| | Re: Carb Float Issues dont dry it in the oven | 
06-13-2008, 07:10 AM
|  | Genius Visionary | | Join Date: Jan 2008 Location: Ashtabula county, Ohio
Posts: 3,381
| | 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.
__________________ If it ain't broke, and you mess with it long enough, it will be. | 
06-13-2008, 07:11 AM
|  | Genius Visionary | | Join Date: Jan 2008 Location: Ashtabula county, Ohio
Posts: 3,381
| | Re: Carb Float Issues Also, once you get it fixed, you'll find you didn't need a float adjustment.
__________________ If it ain't broke, and you mess with it long enough, it will be. | 
06-13-2008, 01:33 PM
| | Motorized Bicycle Apprentice | | Join Date: Jun 2008 Location: Indiana
Posts: 19
| | 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.
__________________ Cycofast | 
06-13-2008, 04:32 PM
| | Master Motorized Bicycle Builder | | Join Date: May 2008 Location: north bend wa.
Posts: 290
| | 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 | 
06-13-2008, 06:24 PM
|  | LORD VADER Moderator | | Join Date: Jan 2008 Location: pampa texas
Posts: 1,289
| | 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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