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Replacing fuel line on trimmer model 775r - have have removed all the fuel lines and the bubble, but have forgotten the exact pattern to replacing the three fuel lines

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Hi: I'm a new user to this forum. I recently had to repalse the 3 fuel lines on my ryobi model #775r. After researching the problem, I diagramed the flow of fuel in order to repace the fuel lines. If you require a copy of this diagram, send me an email . Regards, Tony

Posted on Mar 27, 2012

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Here is a basic fuel line plumbing diagram. Note: the carburetor model may not be the one you have but it should you a good idea of you need to do.

replacing fuel line on trimmer model 775r  - have - 6314437-vqyl0wumkkqskh4plnma1yru-4-0.png

Posted on Apr 07, 2015

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Here is a Link to one of my Tips:

The third fuel line will be short and will go from the carburetor to the primer bulb.
Good Luck!


Posted on Oct 07, 2010

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Why wont the gas go in the bubble of my stihl F5 85 weed wacker un less i block the return fuel line ?

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Replacing fuel line on ryobi 775r trimmer. when i removed old line and filter, the plastic fitting with the filter protruded about 1/4'' out of tank and was held by plastic retainer ring, now i can get the...

First off, get a piece of fuel line longer than you need for the job. With the gas tank removed, wrapped in a towel and put in a vice to steady it I fed the gas line in from the outside of the tank to through the fuel hole (where the gas cap fits on). I carefully worked the fuel line onto the filter until it was all the way on (touching the bottom of the filter assembly). I then gently pulled on the line feeding it through the hole. Then with gentle pulling, twisting and nudging from inside and outside the tank I worked the fuel filter nipple through the hole on the bottom of the tank until it was flush and secure.. Once the filter and fuel line were secure in the hole on the bottom of the tank, I then worked the secure ring up the fuel line and worked it onto the filter stem until it was snug. I then fed the line through the appropiate holes in the engine, trimmed it to size and fitted it on the nipple on the engine.

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Stalls when giving gas

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Fuel line routing on ryobi 775r

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

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spary a little startingfluid in carb to see if it start if it start rebuild change fuel line
only if there dryrotted if it go thourght the gastank in little hold cut new line on a angle and thread through hold.hope helps you.let me know ok

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Ryobi 775r gas trimmer stalling when tilted

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you are right on. try richer mixture.

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