Poulan 358.351080 User Manual - Page 26

-.; :iz-.! SERVICE AND ADJUSTMENTS ADJUSTING PROCEDURE IDLE SPEED ADJUSTMENT "T" • Allow the warm engine to idle. • Adjust the Idte Speed until the engine continuesto run withoutstallingand withoutthe chain moving, - Turn clockwise to increase engine speed ff engine stalls or dies. - Turn countemlockwiseto slow engine down and!or to keep the chain from turning. • No further adjustments are necessary if chain does not move at idle speed and ff performance is satisfactory. LOW SPEED MIXTURE ADJUSTMENT "L" • Allow engine to idle. • Turn the Low Speed Mixture Adjustment slowly clock- wise until the RPM starts to drop.Note the position. • Turn the Low Speed Mixture Adjustmentslowlycounter- clockwise until the RPM speeds up and starts to drop again, Note the position. ° Set the Low Speed Mixture at the midpoint between the two positions. HIGH SPEED MIXTURE ADJUSTMENT "H" IMPORTANT: DO NOT OPERATE ENGINE AT FULL THRO]-TLE FOR PROLONGED PERIODS WHILE MAKING HIGH SPEED ADJUSTMENTS AS DAMAGE TO THE ENGINE CAN OCCUR. ° Make a test cut. • Based on performance of the saw while cutting, adjust the high speed mixture in 1/16 turn increments as follows: - ClOse ff saw loses power in the cut. Do not adjust for best power by sound or speed, but #Jdge by how well the saw performs in the cut. - Counterclockwise if the saw has speed while out of the cut, but dies in the cut or lacks power while cutting. ° Repeat the test cut. • Continue with 1/16 turn adjustments until the saw performance is acceptable while cutting. • After completing adjustments, check for acceleration. ACCELERATION CHECK • If the engine dies or hesitates instead of accelerating, turnthe Low Speed Mixture Adjustment 1/16 of a turn at a time counterclockwiseuntil you have smooth acceleration. ° Check the idle speed for stability and no chain movement. Adjust as necessary. • Recheck for smooth acceleration and stable idle. Repeat process as necessary for acceptable performance. "_':zt2