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Fuel line routing on ryobi tiller

We are replacing old fuel lines on a ryobi tiller and can't get the fuel line working correctly. Any ideas?

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6 Suggested Answers

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Posted on Jan 02, 2017

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  • 97 Answers

SOURCE: Ryobi Cultivator 410r

The linefrom the tank with the filter goes to the mixture inlet on carb. The fuel return goes to the suction side of bulb. The bulb outlet line goes to the tank. Hopes this helps

Posted on Mar 20, 2009

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SOURCE: My 2 stroke mantis tiller will not prime.no fuel

I had the same problem, get a rebuild kit. It sounds like the diaphram is shot. Also make sure the prime bulb doesn't have any holes or cracks, the engine won't run if it does

Posted on Apr 01, 2009

  • 1 Answer

SOURCE: tiller doesn't run

There are two pictures of the position of the fuel lines at this site, http://www.hobbytalk.com/bbs1/showthread.php?t=147204. You will have to register in order to get the pictures. The registration is free. Hope this helps.
Don

Posted on Apr 13, 2009

  • 1 Answer

SOURCE: Replacing a fuel line for a Poulan 2175 type 2 chainsaw

Take top cover off(3 screws). Take off the 2 nuts holding the carb on. Pull carb part way out to access the hoses. Remove the 3 old hoses after making a diagram of where they connect. Buy new hoses. Cut one end of the small hose on a bevel, pierce both sides 1/8 th inch from the end with a needle. Thread a thin wire through both holes. Thread both wire ends into the gas tank. Use a hemostat or long needle nose plyers to pull the wires and then hose down into the tank. Attach the weighted fuel filter. The other end of this smaller diameter fuel line goes on the upper nipple on the carb. Take the side cover off (4 screws) to access the primer bulb. Take 2 screws out to remove the bulb which has 2 nipples. The longer nipple connects to the larger diameter hose which goes to the fuel tank. The larger diameter tube has a coupler on the end which is inside the gas tank. It took me an hour to change all 3 hoses.
Bob

Posted on May 14, 2009

  • 8 Answers

SOURCE: 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.

Posted on May 20, 2009

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you will have 2 lines at the tank. 1 is the supply line with one end having the fuel filter on it and sitting at the bottom of the tank. it generally runs to the inlet side of the carb. the output side of the carb usually goes to the primer bulb inlet, the last hose usually goes from the outlet of the primer bulb back to the fuel tank but only goes in 1/8 to 1/4 of an inch. it should only be in far enough to seal the hole and allow the fuel back in to the tank

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Fuel line routing for ryobi,poulan and sears trimmers


hello sir, fuel line routing for ryobi,poulan trimmers, looking at machine from left side,front green line from tank to bottom of port on primmer bulb. rear line from tank which has filter inserted through tank with small white ring pushed up against tank & filter fittings, goes to port at bottom of carburetor.top line from primmer bulb goes to top port of carburetor. that is the way they go on.it is important to make sure you have the same fuel line I.D. and O.D. are very important! also if old line dissolved it will get in carburetor and clog ports & small screen inside.clean inside of carburetor with carburetor cleaner & air pressure. to get your parts and numbers ,go to mtd parts.arinet.com, parts,791-683398,fuel line assembly.hope this helps
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hello sir,routing fuel line for craftsman,homelite,ryobi,hedge and line trimmers,fuel tank under engine, looking at machine from rear, shall fuel line on left with filter attached goes to bottom port of carb, fuel line from right side coming out of tank with inside tip attached goes to bottom port of primmer bulb,top line on primmer bulb goes to top port of carb, fuel tank under engine,fuel line routing,looking at machine from left side, left fuel line coming out of tank(drain back only) goes to right side small port of primmer bulb, left side larger fuel line from primmer bulb to top port of carb, fuel line coming out of tank (larger line) on the right side with filter attached goes to bottom port of carb, when replacing fuel line it is very important to use the same ID and OD line the homelite takes a special line that is black in color and a bigger size,the bigger line is ID .08-OD140 small line ID3/32 X 3/16.when the lines dissolve small pieces will get in the carb clogging small passages and screen,it is advisable that you clean out carb,and use a new filter.hope this helps,any comments welcome,thank you. if the filter has broken off of the line half way that is where you will run out of fuel, ``

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hello sir, fuel line routing for ryobi,poulan trimmers, looking at machine from left side,front green line from tank to bottom of port on primmer bulb. rear line from tank which has filter inserted through tank with small white ring pushed up aginst tank & filter fittings, goes to port at bottom of carburetor.top line from primmer bulbgoes to top port of carburetor. that is the way thay go on.it is important to make sure you have the same fuel line I.D.3/32 and O.D.3/16 are very important! also if old line dissolved it will get in carb. and clog ports & small screen inside.clean inside of carb. with carb. cleaner & air pressure. to get your parts and numbers ,go to mtdparts.arinet.com, parts,791-683398,fuel line assembly,this is for most fuel line trimmers,any comments welcome,thank you. ``

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Hello, my Ryobi 410r tiller/cultivator needed new fuel line so I bought the fuel line, return and a new bulb primer. Unfortunately, I can't remember what hose goes where!!! Specifically, I've...


The primer pulls fuel through the carbruetor
So take your return line from the carb. and hook it to the inlet side of the primer and the other side
of the primer bulb transtions into the fuel tank.
You know when you have hooked it up right when you press the primer it fills with fuel and dumps back into the tank.

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The fuel fillter line goes directly to the carb.inlet first
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Exploded view:-
http://www.outdoordistributors.com/pdf/Ryobi/RYOBI-410.pdf

Did you replace the gasket (item 15 on the linked document) when replacing tank and lines, if you didn't and the old one has been torn it could be sucking in air, also the 4 carb mount screws need to be of equal tightness

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The linefrom the tank with the filter goes to the mixture inlet on carb. The fuel return goes to the suction side of bulb. The bulb outlet line goes to the tank. Hopes this helps

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