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weed eater help please


platinumaa's Avatar
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09-10-10, 06:58 AM   #1  
weed eater help please

ok.. i work on a computer all day and am not mechanically inclined.. my hoses on weedeater broke so i replaced them all.. i took a pic to remind myself how to put em back, but deleted it.. i tried a combination and it turns on for about 20 seconds and it turns off.. if i keep throttling it-it will stay on.. but as soon as i let go of throttle it turns off.. i used fresh new gas and oil that i mixed that morning..i have a Poulan Pro PPB250E 31cc 17-inch Gas Trimmer.. below are pics of the carb with letters to identify each hose to assist in explaining to me.. i currently have hose "C" goto the filter inside the tank.. thanks for the help fellas





thanks for the help

 
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09-10-10, 08:44 AM   #2  
take the lines off the primer bulb-
use your finger tip to decide whitch port on the bulb - is suction. that is the one that goes to filter - pressure goes to carb- last 1 is return to tank.
as you push on bulb - you should see fuel & bubbles move throuch the lines - back to tank.

 
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09-10-10, 09:07 AM   #3  
Posted By: newtofta take the lines off the primer bulb-
use your finger tip to decide whitch port on the bulb - is suction. that is the one that goes to filter - pressure goes to carb- last 1 is return to tank.
as you push on bulb - you should see fuel & bubbles move throuch the lines - back to tank.


I believe the line with filter in the tank goes to the carb, other line from carb goes to suction on primer, pressure on primer is return to tank...

 
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09-10-10, 09:38 AM   #4  
Posted By: BFHFixit

I believe the line with filter in the tank goes to the carb, other line from carb goes to suction on primer, pressure on primer is return to tank...
i could be wnong!!
i was going by the routing on my 'wead eater' brand.
i certainly don't want to steer him wrong.

 
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09-10-10, 09:48 AM   #5  
Standard for most all 2 strokes I have worked on, the Primer is actually a "purge" more so than a primer. It is meant to purge the air from the lines and the carb before starting.
Most also use a separate "choke" for cold starting.

 
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09-10-10, 10:01 AM   #6  
Posted By: BFHFixit Standard for most all 2 strokes I have worked on, the Primer is actually a "purge" more so than a primer. It is meant to purge the air from the lines and the carb before starting.
Most also use a separate "choke" for cold starting.
wrong terminology-on my part.
that is what i meant by - see fuel & bubbles move through lines

 
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09-10-10, 10:17 AM   #7  
so.. the one that suctions from the bulb.. that is the one that connects to the filter? than where does the other port from the bulb goto?.. than theres a 3rd one that goes into tank too i think

thanks again

 
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09-10-10, 10:34 AM   #8  
the way 'BFH' states-
filter line to carb inlet
carb outlet to suction of bulb
pressure on bulb to return line to tank

 
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09-10-10, 02:26 PM   #9  
Posted By: newtofta wrong terminology-on my part.
that is what i meant by - see fuel & bubbles move through lines
Not at all, I don't claim that my "terminology" is industry standard... prolly more hillbilly

 
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09-11-10, 02:36 AM   #10  
Posted By: newtofta the way 'BFH' states-
filter line to carb inlet
carb outlet to suction of bulb
pressure on bulb to return line to tank
On the back of the purge bulb, one fitting will be shorter than the other, this is the return line to the tank, the longer fitting is for the line going to the carb.
hth.

 
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