Tanaka ECS-3301 User Manual

 
 
 

 
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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.

 

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 T-screw, with the engine running, until the cutting attachment 

starts to rotate. Open (counter-clockwise) the screw until the cutting attachment stops. You have reached the 

correct idle speed when the engine runs smoothly in all positions well below the rpm when the cutting 

attachment starts to rotate. 

If the cutting attachment still rotates after idle speed adjustment, contact your service workshop.

 

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:

 

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. 

Carburetor adjustment (Fig. 3-1)