Poulan 2150 gas chain saw. How do I connect new primer bulb to carb and gas tank?

The 2150 has a remote primer, so there will be three pipes, the pipe coming from the fuel tank with the fuel filter on the end is the main fuel tube, this fits to the connection on the carb nearest to the pump cover on the carb ( alluminium cover held with a single screw ) the other connection on the carb has a pipe to the shorter of the two connections on the back of the primer ( suction side ) the longer connection on the back of the primer ( pressure side ) has a pipe back to the fuel tank, so the primer pulls fuel from the tank, into the bulb, and dumps it back to the tank, it does not push fuel into the carb, this way you can depress the bulb as many times as you like without flooding the engine.

You should have 2 to the tank, the one with filter coming from tank goes to nipple on right side of carb, the nipple on left side by primer bulb goes to primer bulb and other from primer bulb back to tank as return line, how it should work is when you push primer bulb it pulls fuel from tank through carb and back to tank on return line so watch in tank orleave one line out that you think is return line and see if gas comes out when you prime, but remember it goes through the carb first before it goes back to tank, had a pic but too big to put on site sorry, 2StrokeJim

Fuel components are onthe "Engine Assembly" & "Handle, Chassis, & BarAssembly" detail pages.
Replacement fuel lines can be found at yourlocal chainsaw seller/mechanic. They are different diameters.

Fuel Line Replacement

• The hose in the tank with the filter on the free end connects directly to the carburetor input connection.

• If the saw is equipped with a primer bulb, the output line from the carburetor connects to the suction side of the primer (once the bulb is collapsed it draws fuel from the tank through the carburetor to refill the bulb as it inflates).

• The pressure side of the primer returns displaced fuel to the tank as it is depressed.

how to route the gas tank lines in a poulan chain saw

The lines should be connected to push fuel into the carburetor. The output (overflow) of the carb is routed back into the tank. So, two lines in the tank, one is an overflow (return) and the other is the suction. On the primer one line from the tank and the other to the carb. Connect so as to "push" fuel into the carb when the primer bulb is pushed.

An IPL containing fuel system parts with very little detail can be found here:
Poulan.com
http://www.ordertree.com/modelinfo/POULAN-WEED-EATER/75.59.html
“2150 Gas Saw Type #” (the dash number from your serial number). May also be Predator or Woodsman.
The fuel system parts can be found on the "Engine Assembly" and "Handle & External Assembly" illustrations.
Take good notes and a some digital photos with as much undisturbed detail of hoses and routing as possible.
Try your local chainsaw seller/mechanic for fuel hose. Take a short length sample, there may be different size hoses. All need be fuel resistant.



Fuel Line Replacement by SmallEng.com
http://www.youtube.com/watch?v=JrXpU70Hmi0

• The hose in the tank with the filter on the free end connects directly to the carburetor input connection.
• If the saw is equipped with a primer bulb, the output line from the carburetor connects to the suction side of the primer (once the bulb is collapsed it draws fuel from the tank through the carburetor to refill the bulb as it inflates).
• The pressure side of the primer returns displaced fuel to the tank as it is depressed.

Take lots of notes and a few digital photographs will help with reassembly. HTH
Lou

Fuel Line Replacement by SmallEng.com
http://www.youtube.com/watch?v=JrXpU70Hmi0

• The hose in the tank with the filter on the free end connects directly to the carburetor input connection.
• If the saw is equipped with a primer, the output line from the carburetor connects to the suction side of the primer bulb (once bulb is collapsed it draws fuel from the tank through the carburetor to refill the bulb as the bulb refills).
• The pressure side of the primer returns any excess fuel to the tank as it is depressed.

HTH
Lou

Gas line diagram for poulan 2050 .

The smaller line comes from the fuel filter in the tank to the nipple on the side of the carb with the cover w/ 1large screw in the center, the other small line goes from the other nipple on the carb to the primer bulb, the larger line goes from the other nipple on the primer bulb back to the tank, and only gets pushed in about 1/2-3/4" into the tank. Hope this helps.