Rover XT133 - Spark Plug Maintenance

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3. Every unit had been run and tested at the
factory to ensure that the carburetor works
at its best condition. But after a period of
use, if trimmer head or cutting blade
continues to rotate at idling or the engine
stops when you fully release the throttle
trigger, make adjustment to idle-speed screw.
WARNING : Improper adjustment
may cause damage to the unit. If
engine does not run well after
carburetor adjustment, please
contact the authorized dealer where
you bought the product.
SPARK PLUG
After every 25 operating hours take out the
spark plug and check its condition.
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down.
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the spark plug.
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4. Unscrew spark plug in counterclockwise
direction with the attached spark plug
wrench.
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6. Check and adjust spark plug gap to 0.6-0.7
mm.
7. Screw in the spark plug and tighten to a
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8. Re-attach the spark plug cap.
9. If spark plug is damaged or the unit still
cannot work well after cleaning, replace
with a new one.
10. To ensure the machine work well Please use
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2. Adjusting the idle-speed screw clockwise
will increase the idling speed and adjusting
it counterclockwise will decrease the idling
speed. You should use a tachometer to
measure the speed while adjusting. Make
sure the idling speed within the
recommended range 2800~3200 rpm.
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