G RASS TRIMMER /BRUSH C UTTEROPERATOR'S MANUAL 33TROUBLESHOOTINGProblemEngine -- starts hardEngine -- does not start Cause RemedyEngineCranksFuel atcarburetorNo fuel atcarburetorFuel strainer cloggedFuel line cloggedCarburetorCleanCleanSee your ECHO dealerFuel atcylinderNo fuel atcylinderCarburetor See your ECHO dealerMuffler wetwith fuelFuel Mixture is too rich Open chokeClean/replace air filterAdjust carburetorSee your ECHO dealerSpark at endof plug wireNo sparkat end ofplug wireStop switch offElectrical problemInterlock switchTurn switch onSee your ECHO dealerSee your ECHO dealerSpark at plug No sparkat plugSpark gap incorrectCovered with carbonFouled with fuelSpark plug defectiveAdjust 0.65mm (0.026in.)Clean or replaceClean or replaceReplace plugEnginedoes notcrankInternal engine problem See your ECHO dealerEnginerunsDies or accelerates poorly Air filter dirtyFuel filter dirtyFuel vent pluggedSpark plugCarburetorCooling system pluggedSpark arrestor screenpluggedClean or replaceReplaceReplaceClean and adjust/replaceAdjustCleanCleanWARNING DANGERFuel vapors are extremely flammable and may cause fire and/or explosion. Never test for ignition spark by groundingspark plug against cylinder, otherwise serious personal injury may result.