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Hi, I have a ryobi BC30 brush cutter my fuel lines inside my fuel tank broke so I don't know which one go where right now the filter plugs into the bottom of carb and return and another short hose go to primer is this correct? it runs at idle, but wouldn't take any gas thanks

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The small diameter line out of fuel tank (has filter in-tank on end) connects directly to the side of the carburetor that has the fuel pump....that is the cover without the hole in it. Other larger diameter fuel line out of tank connects to the longer nipple on the external purge/primer bulb. The bulb "pulls" fresh fuel from the fuel tank to the carb and then out of the carb to itself, where it then "pushes" any air/old fuel back into the fuel tank. The remaining larger diameter fuel line in this setup goes from the metering chamber (has cover with writing on it and a vent-hole) side of the carburetor to the smaller nipple on the purge/primer bulb. Again, on the primer bulb, the longer nipple has a line going directly from it to the tank. This is the return line. The shorter nipple on the bub has a line from it going to the metering chamber side of the carb. If the purge/primer bulb is on top of the carb...small line from carb body to small hole in tank with filter. Larger diameter line goes from the bulb on the fuel pump side of the carb to the larger hole in the fuel tank where sometimes the line is held in place with a nylon nipple connector that keeps the line from pulling out of the tank. Otherwise, the line should enter the tank for about 1/2" or so

Posted on Nov 09, 2010

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I have a Ryobi cs26 and I cannot get my replacement fuel line through the hole into the fuel tank. Is there a method to get the ruber line through?

Hi lscarmac...
There is a method to try to get the fuel line into the tank.

1...Insert a wire approximatly the same size as the fuel line opening, and then lubricate the out of the fuel line with a little oil/vasoline and then try to insert the fuel line into the tank.
Once you have the fuel line in the tank then remove the wire from inside the fuel line, don't forget to reinstall the fuel filter on the end that is inside the fuel tank.
Please take time to rate me

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1 Answer

Disconnected intake hose from gas tank to primer bulb

is gas line broke or disconnected? Either way it has to be reinstalled.First, get new gas line, and be sure to get it longer then you need, because, you will need to cut a sharp angle on one end then install this end into gas tank, then reach thru gas cap opening with needle nose pliers, get ahold of fuel line and pull thru. if you do not cut angle on new fuel line, you will never get the line into gas tank.

Apr 29, 2010 | Ryobi 30 Cubic Centimeter Gas Brush Cutter

1 Answer

How to get gas lines in tank

You can go to Home Depot and for about $7 U.S. dollars, they sell a replacement filter, primer bulb and install wire. It is really cool. You put the install wire thru the hole in the tank where the lines come out of the tank. There is a small hook on the end. This hook fits thru a small hole in the new fuel line end which is cut on an angle. Basically this allows you to fish the new line into the tank thru the gas fill port up thru the small holes in the tank. Then just plug the tubes on the carb. Easy Pizzi !!!

Feb 18, 2010 | Ryobi 30 Cubic Centimeter Gas Brush Cutter

1 Answer

My Ryobi 77 line trimmers revs like mad when I

Hi and welcome to FiXya. I am Kelly

What your describing it the result of fuel starvation. This can be caused by:

1. Debris in the fuel line or a crack in the fuel line
2 A clogged "fuel tank" internal pick up hose screen
3. A pinched fuel line
4. A clogged needle jet seat
5. A hole in the carb diaphram
6. Debris in the fuel air mixture screw / needle passages
7. A non vented gas tank cap.

Any of the above can cause the symtom you described. For sure it is a fuel supply problem.

I tried crossing the part numbers for just a Ryobi Model 77 and was unalbe to cross it to a working model number.

I came up with 2 different carb part numbers using a 30 CC engine

1st PN: 791-182875
2nd PN: 985624001

If you can pass the exact Model Number, I can provide you with a source for the carb or parts.

Thanks for using FixYa.


Feb 15, 2010 | Ryobi 30 Cubic Centimeter Gas Brush Cutter

2 Answers

Hi, I tried to start my ryobi scrub hornet and found that all the fuel lines have disintegrated and likewise the primer bulb. So I bought those parts and tried installing the fuel lines. Not knowing how...

The primer bulb is attached to the carburetor by a flange with 2 screws...the "center" port goes inside the carb. The upper port on the carburetor is a return line to the gas tank. The lower port is where the supply line is connected - this line goes into the tank and has a filter attached to the end.

I hope this helps you. Please let me know if it does or doesn't.

Dec 16, 2009 | Ryobi 30 Cubic Centimeter Gas Brush Cutter

1 Answer

The fuel lines on my ryobi stinger scorpion brushcutter have deteriorated, I;ve fitted new lines but I think I;ve connected them incorrectly, it won't run.

Fuel filter to bottom of carb. The suction port of primer to the top of carb outlet line to other port to tank.
To tell which port is outlet put your finger on one port and push bulb if the bulb collapses and doesn't return then that is the inlet (suction) side.

PS. I would buy some carb cleaner and gently spray in the inlets of the carbs (sometimes pieces of the fuel lines get in there).
Good luck!

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1 Answer

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You probably have a bad ignition module (coil).Or, you have a wire from the kill switch grounding the plug.


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The fuel line leaks coming out of the plastic fuel tank on my Ryobi Brush Trimmer (990R I think). I am replacing the old plastic fuel lines into the tank but noticed that they are a little loose too. Any...

There is a little white ring that goes over the line and into the opening on the tank. This is what seals the line so the gas won't leak out. They are about $1.00 at any small engine service shop.

May 15, 2009 | Ryobi 30 Cubic Centimeter Gas Brush Cutter

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