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I REPLACE THE FUEL LINES,NOW IT ACTS LIKE IT WANT TO START,BUT D'
WHERE DO THE FUEL LINE AND RETURN LINE FROM THE TANK CONNECTS TO ON A RYOBI 700R WEED TRIMMER.I REPLACED THE FUEL LINES,THEY MAY BE CROSS TO THE CARURETOR AND TO THE PRIMER BULD.THE TRIMMER STARTS BUT CUTS OFF.
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It is not too hard. Just make sure to cut the new fuel filter line long enough so that you can get ahold of it inside the fuel tank to install the filter. The fuel return line only has to go into the tank 1/2" or more to do it's job, so lenth is not a problem unless you wish to install one of the little nylon connectors on it's end so it doesn't pull OUT of the tank. That is optional.
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
There are usually only two fuel lines on a Ryobi motor, a supply and a return line. The supply line is a long one and is designed to move around the tank as the unit is moved around, some hafe a weight with a filter on in the tank. The other line is shorter and just protrudes into the tank, this is the return line. The piping you fit should be the special silicon rubber pipes as these are fuel proof, normal plastic pipes become hard and do not move around in the tank, and eventually crack or disintergrate. Replace the new pipes the same as you remove the old ones, if you go wrong, just change the pipes around on the carb, you will see if you are sucking air with the primer bulb.
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 1/2" or so.
The 700r has the fuel filter on the bottom of the tank. It is held in by the fuel hose which expands when it goes over the barbed end of the filter. To remove follow these steps: 1. Drain tank completely 2. Carefully remove the small, white, round ring that appears to be attached to the bottom of the tank with the fuel line through it. Use a small screwdriver and carefully pry it away from the tank and down the line about 1 inch. 3. Push the fuel line and filter back through the tank and exit out the fuel inlet Always replace the fuel lines with the correct lines as they are necessary to create the proper seal.
There is no nipple. The fuel line is just pushed through and holds itself tight against the hole in the tank.
This is the return line from the primer bulb, right?
Just replace the line and you should be fine. I think that some of these Ryobi lines are 3/16 OD and 3/32 ID, but I just picked up a Ryobi fuel line kit at Home Depot today, and the black line seems to fit nicely here. (My trimmer still won't start, but at least it doesn't leak gas any more.) Be careful to note which line comes from where on the orimer bulb.
ok you have two fuel lines coming in from tank the one that has the fuel filter atached inside should go to the top & the other is just the return line try that & let me know if it helps wade at [email protected]
The longest fuel line, which has the filter attached to it, goes to the brass fitting furthest from the primer bulb. The short fuel line goes directly under the primer bulb. Which hole to put it in doesn't matter if the lines are the same size. Just choose the shortest path for each. However, if the lines are different sizes, then the longest line (smallest in diameter), goes in the smallest hole of the tank.
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.
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