SERVICE AND ADJUSTMENTS
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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
ING 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 fol-
lows:
- 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 perfor- mance 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 accelera-
tion.
° Check the idle speed for stability and no chain move- ment. Adjust as necessary.
•Recheck for smooth acceleration and stable idle. Repeat process as necessary for acceptable performance.
