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Re: fuel lines on my cultivator corroded. I do not
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@example.com
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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
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.
in a nutshell: 1 connect top carburetor line to short nipple on primer bulb.
2 bottom carburetor line to fuel line with filter (inside tank).
3 connect remaining fuel line that comes out of fuel tank to the large nipple on primer bulb.
I will include routings for an on the carburetor purge bulb and a remote purge 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 about 1/2" or so.
The fuel line that has the fuel filter on it goes on the side of the carburetor, it is the inlet for the fuel.
The fuel line that goes back into the tank and has nothing else on it goes onto the carburetor closest to the primer bulb. All else fails, you can pump the primer and see if the fuel goes out or in by putting your finger over the inlet lines on the carburetor. If the primer bulb goes flat but does not inflate back up then that is the fuel inlet. Alternately, if the primer bulb will not go flat without air going by your finger then that is the fuel return that goes back into the tank without the fuel filter.
longest, and sometimes smaller in diameter of the two fuel lines, goes
the carburetor to the bottom of the tank. Leave enough slack in this
line so that the filter that attaches to the end will rest comfortably
at the bottom of the tank.
fuel line goes from the primer bulb to just inside the tank,
(about an inch). make sure that you get the right size fuel lines. The
plastic coupling goes on the end of this line, inside the tank. This
keeps the line from pulling out of the tank.
(HINT): When feeding
the lines through the tank holes, cut the lines at an
angle. They will feed much easier into the holes. You can than cut them
off square, once you know that you have enough to work with.
If the saw has a primer bulb, then you require one line from it's output out to the tank return. Another line runs from the carburetor outlet to the primer inlet. Make sure that you use original rubber lines, not plastic replacements. The primer ports are found by trial and error--hook the filtered line directly to one primer port and leave the other port open. If the bulb is in good condition, and correctly connected to fuel, the bulb should fill with fuel after several pumps. If nothing, reverse the port connection at the primer--and pump test again. One of these two connections should allow pumping to occur. When you get pumping, install the tank return line to the empty primer port. Remove the filtered line from the primer and install on the carburetor. A new piece of line runs from the now empty primer port and connects to the output port on the carburetor. If the carburetor lines are correct, you should be able to pump fuel through the carburetor body and out to the primer bulb. If nothing happens, you may need to swap the carburetor lines, and you will likely need to service the carburetor. Hope this helps!