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Ryobi fuel lines I do not have a diagram how they go and if there

I need a diagram for the gas lines and need to know if there are 2 different sizes of lines

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Posted on Jan 02, 2017

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SOURCE: I need to know how the fuel lines should be

The line from the fuel tank that has the filter on it goes directly to the carburetor below the primer bulb. One line comes from the carburetor to the primer bulb. The other line goes from the primer bulb to the fuel tank. Primer bulb can be pressed to determine which side is pulling fuel (line from carb) and which is pushing (line to fuel tank).

Posted on May 15, 2009

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mitchjl_1692
  • 3 Answers

SOURCE: Need routing of fuel lines on Ryobi string trimmer Model 725R.

The larger fuel line goes from fuel filter to carbuerator.The smaller line is the return line from the purge bulb tofuel tank. mitchjl_1692

Posted on May 27, 2009

  • 1 Answer

SOURCE: RYOBI 725R FUEL LINE DIAGRAM

I just rebuilt my 725r. I don't have a diagram but I can explain it. There are two lines coming out of the fuel tank. The line closest to the rear is the fuel feed and has the in-tank filter (these are available for replacement). This line goes through the lower case hole of the air filter housing and attaches to the bottom of the carburetor. The line toward the front of the tank attaches to the longer/lower fitting the primer bulb and is the return. The line coming off the shorter/upper fitting of the primer bulb goes through the upper hole of the air filter housing and attaches to the top of the carburetor.

FYI also, the forward carburetor screw is the low idle adjustment & the rear, the high-speed mixture. The original oil mixture spec called for 32:1

Posted on Jun 27, 2009

canbruce75
  • 1776 Answers

SOURCE: need a diagram on how to connect the fuel lines

Typical fuel line routing 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 line goes from the top fitting on primer bulb to top fitting on the carburator. Hope this helped and best wishes.

Posted on Oct 01, 2009

  • 1 Answer

SOURCE: where do I connect the fuel lines on my ryobi weedeater?

I have Ryobi775r string trimmer with walbro WT526 carb. The fuel lines connect 3 parts eg. gas tank, bulb (mine is a separate bulb not part of carb.) and the carb. The bulb has 2 fittings- a short and a long one. The carb also has 2 fittings- one on top (vertcle) and one on the bottom (L shape). The gas tank has two holes in the bottom one for over flow line and the other for fuel inlet to the carb. This has a filter in the gas tank. Now the connections- connect the long fitting on bulb to the tank. this is the overflow. Connect the short fittin on bulb to the carb top (verticle) fitting. Connect the fuel line (with filter - it is in the tank) streight to the L fitting on the bottom of the carb. Make sure the fuel lines are of right diameter. Too big-and you will have leaks. You are done connecting the fuel lines. just for info. the bulb is there just to pull a vavcume in carb so that the fuel is sucked into the carb and is present there when you start the engine. Hope it helps. Good luck.

Posted on May 10, 2010

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What size fuel line for Ryobi Homelite Fuel Tank Fits Trimmers 308181008


Ryobi makes a neet little fuel line kit for these , and its inexpensive too , it contains a new fuel filter (and tool for installing it) a new primer bulb (change it anyway) and enough of two different fuel line to reach your trimmer's carb , I stock a few of these here and you can buy ne from any roybi dealer , the only tool you need besides your fingers are a pair of scissors and a Phillips screwdriver for taking off the air cleaner to gain access to lines
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What your describing it the result of fuel starvation. This can be caused by:

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2 A clogged "fuel tank" internal pick up hose screen
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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
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If you can pass the exact Model Number, I can provide you with a source for the carb or parts.

Thanks for using FixYa.

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