2. Adjusting carburetor
fil
the idle speed either too
high or too low, or abnormal exhaust emission a slight adjustment on the
ef. Fig. 9)
ing Screw “L” (see Fig.9, inside
driver to turn the screw L clockwise all the way to its end.
backwards (counter-clockwise) 360°.
The carburetor has been preset and adjusted at the factory to reach the optimum fuel-air
mixture for a smooth, fuel efficient, reliable running engine with low emissions. The air
ter and the spark plug need to be checked and maintained regularly. However if the
cut-off saw is found to be unsatisfactory in operation (such as
still persist),
carburetor might be necessary, which includes: (R
a. Standard setting adjustment:
Find the Low Speed Adjust
the upper hole of the carburetor seal cover), use a screw
Then turn the screw L
b. Adjusting idling speed:
It is usually necessary to adjust the idle speed after
Standard setting adjustment (a). To adjust idle speed, start
the engine first.
● If the idle speed is too low, the engine may shut off after
32
Fig 9
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