rocketa 107cc wierd fuel setup?

Motodeficient · 03-29-2010, 07:57 AM

Just picked this up cheap today, it has spark and wants to run for a second after about 50 kicks. Its not getting much fuel if any. I tried another carb on it but it does the same thing. Wondering what the rest of this fuel system is all about? Theres a tube coming off the carb neck going up into the assembly above the carb neck, which looks like a fuel pump or something like on a snowmobile? Then there is at tube going from the assembly to the bottom of the engine, and a vent tube that goes back under the bike. I have had a couple pitbikes in the past and friends have them, never seen a fuel setup like this before? I'm thinking something is wrong with this secondary system because it won't start with too different carbs.

katoranger · 03-29-2010, 08:52 AM

I had one of those. Don't remember that setup though. My suggestion is to bypass it. Run the fuel line direct from the tank to the carb with a filter in the middle.

Is it suppose to be an automatic fuel petcock?

Cal25 · 03-29-2010, 09:03 AM

Similar to what scooters have? needs vacume to let fuel pass?

katoranger · 03-29-2010, 09:41 AM

I would get a lawnmower shutoff and bypass that thing.

I am pretty sure that is what it is.

FastDoc · 03-29-2010, 11:32 AM

Quote:

Originally Posted by katoranger

I would get a lawnmower shutoff and bypass that thing.

I am pretty sure that is what it is.

I agree since you've essentially ruled out carb issues with the swap.

03-29-2010, 07:57 AM	#1
Motodeficient Join Date: Mar 2010 Posts: 1	rocketa 107cc wierd fuel setup? Just picked this up cheap today, it has spark and wants to run for a second after about 50 kicks. Its not getting much fuel if any. I tried another carb on it but it does the same thing. Wondering what the rest of this fuel system is all about? Theres a tube coming off the carb neck going up into the assembly above the carb neck, which looks like a fuel pump or something like on a snowmobile? Then there is at tube going from the assembly to the bottom of the engine, and a vent tube that goes back under the bike. I have had a couple pitbikes in the past and friends have them, never seen a fuel setup like this before? I'm thinking something is wrong with this secondary system because it won't start with too different carbs.
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03-29-2010, 08:52 AM	#2
katoranger Join Date: May 2007 Location: Altamont, Kansas Posts: 15,103	I had one of those. Don't remember that setup though. My suggestion is to bypass it. Run the fuel line direct from the tank to the carb with a filter in the middle. Is it suppose to be an automatic fuel petcock? __________________ You meet the nicest people on a Honda Clone.
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03-29-2010, 09:41 AM	#4
katoranger Join Date: May 2007 Location: Altamont, Kansas Posts: 15,103	I would get a lawnmower shutoff and bypass that thing. I am pretty sure that is what it is. __________________ You meet the nicest people on a Honda Clone.
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03-29-2010, 09:03 AM	#3
Cal25 Join Date: Feb 2008 Location: Terrell and Grapevine Tx. Posts: 1,585	Similar to what scooters have? needs vacume to let fuel pass?
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