carb bowl leak

has anyone had problems with leaking carb? mine is leaking, a little bit. i have,nt been able to tell exactly where. i checked the screws holding the bowl on, they were tight. i may take the carb off today, to check the gasket, float postion, etc. it is the 70 cc kit from dax. also, can someone explain what the needle slot means, & how to adjust this?

check the fuel line. that is where mine always leaks then it runs down to other places. I had to replace that clear crap with black rubber line to stop it.

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My carb always leaks from time to time. I think it is because of that little pin that shuts of the fuel when the float is at the top. the adjustment is that little clip on that brass pin remember when you put your carb together? That is not what it is though. Maybe you could try adjusting your carb by bending those little brass things down that are on the top of your float. Just do not loose those little pieces if they fall out. Remember where they were before bending. That way can put them back if it does not work.

thanks for the input, i still don't understand the needle slot adjustment part. is there a picture anywhere, or a thead that shows the parts?

You do know where it is right?

If you do there is a clip on the needle and several groves you can move the clip to. when you move the clip up it reduces the flow of fuel. When you move it down it increases the amount of fuel available. It is how you adjust your carb.

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Motorized Bicycle Carburetor install and rebuild

Try this link and see if it will help you...................

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thanks, i got it now, i thought the clip was the washer. i now understand. is'nt it the first grove down from the top? for the 70 cc engine? thats where it was so i did,nt change it.

Second from the top to start. When close to good your bicycle motor should run in a clean two cycle on any pull, up through full throttle. When you are on a slight down hill or barely cruising along it will be breaking in and out of a four cycle/two cycle.

If you lean it out enough to run in a two cycle all the time you lose power and engine longevity.

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If it ain't broke, and you mess with it long enough, it will be.

I do not think the pin addjustment is going to keep it from leaking.

I don't think it will.

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If it ain't broke, and you mess with it long enough, it will be.