Two lines on top of gas tank: one gas feed and one air line (it appears). It appears tank is pressurizing, pulling gas up through & out of the top of the tank around the line which is just pushed through the top of the tank.
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One is the return line from the carb, the other goes to the primer bulb.
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The (clear) fuel intake line runs from the top of the carburetor (straight nipple) and goes to the short post on the back of the primer bulb. The return line (blue) comes from the long post on the back of the primer bulb and goes into the bottom of the fuel tank.
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Can not get spool head apart to change line, tried pump pliers, pipe wrench, won’t unscrew!!
If you are sure that it screws on it may be a reverse threaded unit..
My trimmer is leaking fuel help – Ryobi 30 Cubic Centimeter Curved Shaft Gas Trimmer
Change your primer bulb and/or fuel lines.
The machine starts when the primer is full. As soon as the primer has emptied the machine stops.It seems as though no fuel is getting to the carburettor.
That is indeed the case, fuel is not getting to or through the carburetor. Check the fuel line, including the filter in the tank. Then check the carburetor, clean it if necessary, replace the diaphram in the carburetor. The diaphram is also the fuel pump of the carburetor. Be very careful with the small parts including the little spring in the lower end.
How do you get the fuel line connected to the fuel filter nipple on the bottom side of the gas tank on the Ryobi 725r gas trimmer?
You must run the fuel line through the back of the tank and out the filler hole,make your connections,i used a small amount of vaseline to make the connections.Then pull the filter into place,make sure some of the nipple of the filter pokes through,then slide the retainer ring on the hose and force it onto the filter nipple.
Ryobi 700r gas trimmer, replace old fuel lines
Fuel line positions ?
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.Jim
Ryobi TP30 straight shaft line trimmer convertible – drive shaft disconnected from motor
Check both ends of shaft, they’re usually a hex or torx head. sometimes the can strip or even snap off. if you find noticable damage replace the shaft
I cannot get the line to feed as it is used up. bumping does no good. the spring is in place. thanks for your help
Did you wind in the new string in the correct direction? The string should be wound in the SAME direction that the head spins.