PRIMER BULB
SOURCE: poulan 2150 w/ walbro wt324 carb fuel line reassembly
the fule line that comes from the filter/ pick up will go straight to the nipple usualy the one closest to the middle of the carby.
the other hose comes from the carby to the in or **** side( punp it you can feel it)of the primer and then goes to the tank that is the return/ prime, nothing is conected to it in the tank. if you have the carby one the wrong way around it will not prime. just swap them over..
SOURCE: routing of fuel lines from tank to primer bulb to carb
Line with filter goes to carb inlet,
Line from carb goes to inlet side of bulb.
Line from bulb goes to tank
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
SOURCE: Need to remove & replace primer bulb on mcculloch mac 3516
There are 4 different IPLs for this saw. Fuel detail are on multiple illustrations.
http://www.ordertree.com/modelinfo/MCC/22-600035-18-Mac-3516-IPL-211318-01/139.22-600035-18-Mac-3516-IPL-211318-01.1.59.1.html
A helpful video, a few of my suggestions, and a schematic follow:
Fuel Line Replacement by SmallEng.com
http://www.youtube.com/watch?v=JrXpU70Hmi0
Take lots of notes and a few digital photographs to help with reassembly.
HTH
Lou
SOURCE: model 2175 poulan - pump up primer bulb and it
Change out the primer bulb and the small gas lines going to carb and primer. One of these has a small crack to let air get by and this is how you get a flat primer bulb. Pick the kit up at lowes for $6-8.
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