Question about Echo Gas Blower 135 MPH390 CFM Blower PB250
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Posted on Jan 02, 2017
Find the fuel air mixture screw located by the carb and turn it so the moter starts to slow down then turn it so the blower runs smoothly this should keep it from dying out
Posted on Nov 23, 2008
If its a two cycle engine it sounds like its loading up on fuel.. Need to lean out the fuel on the carb. Not much or it will be to lean an stick the piston..
Posted on Sep 23, 2009
Check the muffler and/or spark arrestor screen in the muffler outlet pipe and also the engine's exhaust port behind the muffler. These are prone to carbon-clogging and the engine cannot "BREATHE" enough to reach full throttle. If all-clear in the muffler, go back in the carb and locate the inlet screen directly opposite of the inlet needle. Carefully pull it out with a pick and hold it up to a light source. If you cannot see thru it, replace it. This is another, (less) common area of obstruction.
Hope this helps,
Posted on Oct 18, 2009
Check the exhaust port upstream from the muffler and make sure it is not restricted with carbon. Mine was less than half way covered over with carbon. Scraped out carbon, checked muffler and screen(ok), back-blow the fuel line harness including the fuel filter and fuel tank vent and took carb apart and blew out all passages, not replacing anything and now runs fine. Would not rev past high idle before. Be sure gas is FRESH and mixed at 40-50 to 1. Hope this helps.
Posted on Nov 12, 2010
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