Michael33 my PB 1000 was having a problem start, run and die,bought a rebuild kit,read a post about soaking a carb body in warm water on stove top with a heavy dose of pinesol in mix .Big mistake for this type of carb.It looked like brand new,but I believe the heat disfigured an internal rubber check valve and carb will no longer prime itself.I ruined a classic techumseh blower, at the same time ,same thing.I did not try that hard to find new carbs,bought a Echo 250 L\N instead and try to forget about what I did.slow wrench;said echo good tools.if you have 22yr. echo imagine may be satisfied. last echo carburetor i bought was for `95 power pruner,that when called technics power pruner from idaho.carb. wouldn`t idle slow enough anymore for chain not spin.unsafe. cost$55+-,,,in08-10.also in `15 bought new ppt280 w/ extension and upgrade 14" bar.old ext and new don`t mix.anyway,only 1 echo carb.did you shop for new carb?forgot;echo bought technics.....,,,,,have 3 different sized stihl saws,echo`s too. bunch other stuff.----you mentioned ruined carb.,old fuel or something else?sorry all out of order,watching bit of spurs/thunder game,dinner too.