Operators Manual

CARBURETOR&F
4
JELSYSTEMS
5. The trimmer head should not rotate after thelowspeed
has been adjusted. If so repeat the IDLE SPEED
ADJUSTMENT procedure and check LOW SPEED
MIXTURE ADJUSTMENT again.
CAUTION
THE TRIMMER HEAD MUST NOT
ROTATEAT IDLE.
RECHECK IDLE SPEED AFTER EVERY
CARBURETOR ADJUSTMENT.
CAUTION
DO NOT OPERATE THE ENGINE
AT FULL THROTTLE FOR PROLONGED
PERIODS WHILE MAKING
HIGH SPEED ADJUSTMENTS AS
DAMAGE TO ENGINE CAN OCCUR !
1
HIGH SPEED
MIXTURE ADJUSTMENT
IDLE
E
1. Support driveshafthousing sotrimmerhead attachment
is off the ground and will not make contact with any
objects.
2. Allow the engine to warm up 2 to 3 minutes.
NOTE:
Preform step 3 at full throttle.
Turn high speed mixture screw counterclockwise
(rich) slowly until the engine begins to run rough.
Then turn the high speed mixture screw slowly
clockwise ( lean ) until the recommended no load
operating speed is reached. (7500 R.P.M.)
NOTE:
The proper high speed setting is 7500 R.P.M.