321S15/25GB-19Problem Possible causes RemedyEngine will not startElectrode spark plug is wet orfouled Clean or replace the spark plugCracked spark plug insulator Replace the spark plugIncorrect spark plug gap Adjust gap 0.6 - 0.7mmEngine floodedCrank engine with choke open and full throt-tle to clear excessfuelIncorrect or stale fuel Drain and replace with correct fuel/oil mixtureNo fuel in tank Refuel with correct fuel/oil mixtureInsufficient powerClogged air cleaner Clean and lubricate air cleanerFuel line/passage clogged Contact Service Centre or see AuthorizedDealerCarbon build up in muffler Contact Service Centre or see AuthorizedDealerUse incorrect or stale fuel Drain and replace with correct fuel/oil mixturePiston seizure Contact Service Centre or see AuthorizedDealerMachine is overworked Operate properly - do not overloadEngine stops during opera-tionSwitch is bumped Restart the engineShorting of spark plug Clean spark plug or replacePiston scored Contact Service Centre or see AuthorizedDealerFuel tank is empty Refuel with correct fuel/oil mixtureCarburettor or fuel tank clogged Contact Service Centre or see AuthorizedDealerEngine is difficult to stopStop wire disconnected from theswitch Attach stop wire to switchOverheated engin Contact service centre or see AuthorizedDealerUnit main bodyLoose engine and/or pumpmounts Retignten engine and/or pump mount screwsTank leak Contact service centre or see AuthorizedDealerLeak at the tube connections Retignten the hose clip or replace if dam-agedPump is no sprayingNo chemical diluted liquid in thesprayer tank Fill the sprayer tankValves inside the pump clogged Contact Service Centre or see AuthorizedDealerCock valve blocked Clean the cock valve or replaceIncorrect pressure setting-too low Adjust the pressure regulating dialPump is worn out or damaged Contact Service Centre or see AuthorizedDealerSpray rod nozzle clogged Clean the nozzleTROUBLESHOOTING