Question about ECHO, Inc. PB-251C Handheld Blower

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Need diagram for fuel line hookup on echol pb1000 blower

Which lines go wheere to the carb?

Posted by Anonymous on

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4 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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roadtech7
  • 297 Answers

SOURCE: Fuel is not going up the fuel line to the carb. I

What model blower is it? It should have two or three fuel lines going to the tank. One pulling fuel from the tank, with the filter on the end of it. The second one is a return line from the primer, and the third ,If their is one is the vent line.

Make sure when replacing the fuel lines that you do it one at a time so as not to confuse the pick up and discharge hoses.

The primer, when it has the hoses connected correctly, will have SLIGHT pressure when being depressed. If the hoses are crossed, the primer will be very difficult to push down and will NOT spring back up, it will stay "stuck" down for a few seconds.

Hope this helps.

Posted on Nov 04, 2010

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2strokeJim
  • 577 Answers

SOURCE: echo pb251h. Blower will only

when the carb was "rebuilt" Did you pull out the screen and clean it out and also did you pull needle and diaphragm out and clean it out good, because if the needle is not working or the neoprene tip is swollen your needle adjustment will be out of whack,sometimes carb cleaner will make it swell up to where it won't open enough to get fuel through it....suggest you replace the needle and adjust your height of the tab to flush with the body of carb and make sure you have a good diaphragm in it along with new check-valve diaphragm, then make sure your primer is hooked up right ..it should be pulling fuel through the filter to carb and through carb and back to tank,your problem is definitely in the fuel system, keep trying different things you will figure it out

Posted on Jun 15, 2011

2strokeJim
  • 577 Answers

SOURCE: stihl blower - full throttle it stalls out. low speed ok. have replaced fuel line, spark plug.

check your muffler screen for being plugged, this will cause it to not accelerate
2StrokeJim

Posted on Nov 19, 2011

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I don't have a diagram, but I can explain to you the fuel line routing.
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.

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<div id="ms__id6" class="solution-text"><span id="ctl00_ctl00_MainColumn_CenterColumn_ThreadSolutions1_Repeater1_ctl00_lblSolution">This is an ongoing issue for users, and rightfully so. Small diameter line out of fuel tank (has filter in-tank on end) connects 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. Years ago on 2-stroke trimmers, primers were not even used,...you choked the carb with a slide lever and gravity let fuel enter the carb from above...a few pulls, a "pop"...slide it off of choke and away you went.<br />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 the line is held in place with a nylon nipple connector that keeps the line from pulling out of the tank.</span> </div><!-- from fixya rte -->

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HTH
Good Day.

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