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-.; SERVICE AND ADJUSTMENTS
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ADJUSTING PROCEDURE
IDLE SPEED ADJUSTMENT "T"
• Allowthe warm engine toidle.
• Adjustthe 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 ffperformance is satisfactory.
LOW SPEED MIXTURE ADJUSTMENT "L"
• Allow engine to idle.
• Turn the Low Speed Mixture Adjustment slowlyclock-
wise untilthe RPM startsto drop.Note the position.
• Turn the Low Speed Mixture Adjustmentslowlycounter-
clockwiseuntil the RPM speeds up and starts to drop
again, Note the position.
° Set the Low Speed Mixtureat the midpointbetween the
two positions.
HIGH SPEED MIXTURE ADJUSTMENT "H"
IMPORTANT: DO NOT OPERATE ENGINE AT FULL
THRO]-TLE FOR PROLONGED PERIODS WHILE MAK-
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.
• Continuewith 1/16 turn adjustments until the saw perfor-
mance is acceptable while cutting.
• After completingadjustments, checkfor acceleration.
ACCELERATION CHECK
• If the engine dies or hesitates instead ofaccelerating,
turnthe Low Speed MixtureAdjustment 1/16 ofa turn at
a time counterclockwiseuntilyou have smooth accelera-
tion.
° Check the idle speed for stability and no chain move-
ment.Adjust as necessary.
• Recheckfor smooth accelerationand stableidle.Repeat
processas necessary for acceptable performance.
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