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Motorized Bicycle Trouble Shooting Use this area to post problems that may arise that you could use some help in figuring out what is wrong with their bicycle motor and what needs to be done to achieve top performance.

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  #1  
Old 06-20-2009, 07:37 PM
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joeblow joeblow is offline
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Default leaky carb + death

Hi,
I am pretty new to all this bike building stuff, and I have learned a lot through broken, crappy
parts. My latest is the Carburetor. I was riding for about six or so miles and then the engine
stopped because I am not good at starting again from a stop.

After that the engine sounded very muffled and it would no longer accelerate. The throttle
would make it groan a little, but it mostly sounded like it was dying. After I pedaled the last
block home, I discovered gas pouring out of my carb. I had to turn the petcock from the tank
to stop it.
When it was hot I could still start it, but it would not accelerate, and it sounds like it is under
water. I don't know about now, this was earlier today.

any advice anyone?
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  #2  
Old 06-20-2009, 08:55 PM
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dvddtz dvddtz is offline
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Default Re: leaky carb + death

Sounds like the float is sticking,and not stoping the flow of gas to the carb
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  #3  
Old 06-21-2009, 05:49 PM
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joeblow joeblow is offline
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Default Re: leaky carb + death

ok, does that mean I have to take it apart and fix it? I really hope not...
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Old 06-21-2009, 05:54 PM
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Bikeguy Joe Bikeguy Joe is offline
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Default Re: leaky carb + death

First, tap on the carb with something like a screw driver or small rock. If that doesn't fix it, then yes, you'll have a little work ahead of you. But it is simple work.
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Old 06-22-2009, 01:51 AM
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Goat Herder Goat Herder is offline
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Default Re: leaky carb + death

http://motorbicycling.com/f4/carbure...build-195.html This is a good read for the subject you are about to tackle hope this helps!
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  #6  
Old 06-22-2009, 10:55 AM
Echotraveler Echotraveler is offline
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Default Re: leaky carb + death

did you fix it already..?
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Old 06-22-2009, 06:47 PM
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joeblow joeblow is offline
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Default Re: leaky carb + death

Ok,
so I rode the thing today, and just to get the gas out of the line I started it up. It was working well and accelerated it. I rode to my new place and stopped. After about 30 seconds gas started pouring out of the carb again and I had to turn the petcock to stock the flow.
Is this still the floater? (I hit it with a broken tile, btw. still leaked, but maybe it did something since it ran.) do I just have to turn the petcock everytime I finish riding?
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Old 06-22-2009, 09:26 PM
Echotraveler Echotraveler is offline
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Default Re: leaky carb + death

do you have a gas filter? pics?
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  #9  
Old 06-26-2009, 10:49 AM
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joeblow joeblow is offline
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Default Re: leaky carb + death

I think hitting it with the rock was the right move. that made it able to go, and after riding it a little bit more the leak seems to have stopped itself.
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Old 06-27-2009, 08:27 AM
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Bikeguy Joe Bikeguy Joe is offline
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Default Re: leaky carb + death

Yeah, it used up the extra gas in the carb.

Keep an eye on it.

It's always a good idea to shut off the fuel when not in use.
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