Question about Ryobi 30 Cubic Centimeter Curved Shaft Gas Trimmer

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Replacing the 3 fuel lines

Curved shaft gas trimmer all 3 fuel lines have come off as they have crumbled and I don't know which hose goes where

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  • henry139 Jan 21, 2009

    replacing the the 3 fuellines

  • james2034 Jan 21, 2009

    My fuel lines on a 700r trimmer disolved. I am attempting to replace the 3 lines, but do not know where to run them.

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  • 149 Answers

Check my postings 3 days ago it give a good run down

Posted on Jan 15, 2009

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Can someone tell me where to find replacement fuel hose for this style of Ryobi? The existing line has hardened with time and is leaking fuel / sucking air iat an inline connection below the primer bulb. I...


Your local repair shop should carry this fuel line in large quantities and sell it by the foot or by the inch. Your Ryobi probably uses Homelite's 3/64" line.
Homelite #70310-98 or Rotary #20-8645
Homelite Consumer Products is the company that made your 30cc Ryobi trimmer. At their website (www.homelite.com) they offer a replacement tank assembly which would include the fuel line.
I think your best opportunity is with the local repair shop.
Good luck!

Sep 10, 2010 | Ryobi 30 Cubic Centimeter Curved Shaft Gas...

2 Answers

I need to know how the fuel lines are hooked up in my ryobi gas trimmer. All of the fuel lines rotted out. I took them out and I need to know the correct connection sequences (what goes where).


line runs from little filter in tank to carb.
line from carb. to primer bulb
line from primre bulb back to gas tank.
lines are 2 sizes
need to cut at angle end of lines in tank so you can get them thru holes
and grab with needle nose plyers and pull them thru.
make sure you put the little filter on end before you pull line thru and leave
enough so filter can move around the whole tank.
second line in tank is smaller and need to cut and pull it thru hole in tank to primer bulb

Jun 23, 2010 | Ryobi 30 Cubic Centimeter Curved Shaft Gas...

1 Answer

The fuel lines were brittle. I need to know how they hook up to 33 cc


The typical fuel line routing2.gif is:

One line (the one with the fuel filter in the end of it) comes out of the fuel tank2.gif and goes to the bottom fitting on the carburator. The second line comes out of the tank and goes to the bottom fitting on the primer bulb. The third section of fuel line goes from the top fitting on primer bulb to top fitting on carburator. Hope this helped and best wishes.

Sep 10, 2009 | Ryobi 30 Cubic Centimeter Curved Shaft Gas...

2 Answers

Fails to stay running / primer bulb does not fill


Double check that the fuel lines are routed properly. Another place to look for a potential problem is where the fuel line comes out of the tank. Make sure the hose is not pinched. The typical fuel line routing is the first line (the one with the fuel filter in the end of it) comes out of the tank and goes to the bottom fitting on the carburator. The second line comes out of the tank and goes to the bottom fitting on the primer bulb and the third line goes from top fitting on primer bulb to top fitting on carburator. Hope this helped and best wishes.

Sep 04, 2009 | Ryobi 30 Cubic Centimeter Curved Shaft Gas...

1 Answer

Replaced gas lines on ryobi 31ccweedeater. my have lines crossed. will not crank.


One fuel line (the one with the fuel filter in the end of it), comes out of the tank and goes to the bottom fitting on the carburator. The second line comes out of the tank and goes to the bottom fitting on the primer bulb. The third section of fuel line goes from the top fitting on primer bulb to the top fitting on carburator. That should be the correct fuel line routing. Hope this helped and best wishes.

Aug 28, 2009 | Ryobi 30 Cubic Centimeter Curved Shaft Gas...

1 Answer

Fuel line connectors pushed into fuel tank


I slice the new hose like the end of a medical needle, like a long v. A little lubricant on the hose will help as well, Cut off enough that you can thread up throught he filler hole, there should be a filter on the end of the hose. Do this obviously with the gas tank empty, when you turn upside down, the old hose should fall out or be available to grab with needle nose pliers. I hope the helps.

Jul 05, 2009 | Ryobi 30 Cubic Centimeter Curved Shaft Gas...

1 Answer

Ryobi 768r fuel line


Line from tank with the filter on it is the supply line and goes to the carb inlet fitting. This is typically on the "bottom" of the carb (with the tank being up) and will usually have a fitting with barbs or a bulge on it to ensure a tight fit. The other fitting on the carb is the return line and is usually a straight tube fitting with no barbs. That line goes the suction side of the primer bulb. The third line goes from the outlet of the primer bulb to the return barb fitting in the bottom of the tank. Fittings have to be removed from tank to properly install the new hoses on them. Remove retainer ring on outide of tank and push fittings into tank, then shake out of the fill opening. More details on replacing hoses are listed in another post about Repairing Ryobi trimmer.

Mar 22, 2009 | Ryobi 30 Cubic Centimeter Curved Shaft Gas...

2 Answers

Ryobi 700r gas trimmer, replace old fuel lines


Line from tank with the filter on it is the supply line and goes to the carb inlet fitting. This is typically on the "bottom" of the carb (with the tank being up) and will usually have a fitting with barbs or a bulge on it to ensure a tight fit. The other fitting on the carb is the return line and is usually a straight tube fitting with no barbs. That line goes the suction side of the primer bulb. The third line goes from the outlet of the primer bulb to the return barb fitting in the bottom of the tank. Fittings have to be removed from tank to properly install the new hoses on them. Remove retainer ring on outide of tank and push fittings into tank, then shake out of the fill opening. More details on replacing hoses are listed in another post about Repairing Ryobi trimmer.

To leemineres, if hoses are on right and unit still stalls after starting initially you probably need to disassemble carb and clean out using spray carb cleaner. May be sticky needle valve, or partially plugged port or jet.Could also be hole in diaphragm. Gasket and diaphragm kit would be good to add when you take apart, even if diaphragm does not have a hole.

Jan 21, 2009 | Ryobi 30 Cubic Centimeter Curved Shaft Gas...

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