Echo PB 500T carb

Wesspur
Rugged made
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Oletrapper

Oletrapper

The LT40HD
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I'm working on a Echo PB 500T backpack blower. It has a Walbro WLA 1 carb which has the micro "D" needle adjustment screws. The needle screws are held in place by what appears to be loctite of some sort. Has anyone been successful at thinning or softening this so they can be adjusted? Thanks, OT :cool:
PS: I have destroyed 2 adjustment tools thus far. lol
Some pics of the carb and needle screw. Note the Walbro carb is made in CHINA
 

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