5. Maintenance
Owner’s Manual
MAINTENANCE, REPLACEMENT, OR REPAIR OF THE EMISSION CONTROL DEVICES AND SYSTEMS MAY BE PERFORMED BY ANY NONROAD ENGINE REPAIR ESTABLISHMENT OR INDIVIDUAL.
Carburetor adjustment (Fig. 3-1)
WARNING!
Never start the engine without the complete clutch cover.
Otherwise the clutch can come loose and cause personal injuries.
In the carburetor, fuel is mixed with air. When the engine is test run at the factory, the carburetor is basically adjusted. A further adjustment may be required, according to climate and altitude. The carburetor has one adjustment possibility:
T = Idle speed adjustment screw.
Idle speed adjustment (T)
Check that the air filter is clean. When the idle speed is correct, the cutting attachment will not rotate. If adjustment is required, close (clockwise) the
If the cutting attachment still rotates after idle speed adjustment, contact your service workshop.
NOTE!
The L and H screws should only be adjusted by an Authorized Tanaka Dealer.
The standard openings (returns) of L/H screws from lightly seated positions are as follows:
WARNING!
When the engine is idling the cutting attachment must under no circumstances rotate.
NOTE FOR THE US MARKET!! (Fig. 3-1C)
We would like to inform that the machines, which carry the following label on the unit are different from ones for other market in carburetor adjustment. Adjustment of Standard openings of L/H screws are not necessary. They are preset and fixed. Do not turn L/H screw fully but 90 degrees at most.
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