Throttle gap adjustment can also be made through the idle speed of a cold engine. This has the advantage that it is not necessary to remove the carburetor for adjustment. The idle speed of a cold engine should be checked if the engine has insufficient throttle response.
The carburetor is not removed.
Oil temperature not less than 60°С.
Idle adjustment is ok.
Ignition timing is fine.
Remove air filter.
Start the engine.
Give gas and thereby open the throttle, bringing the engine speed to about 2500 rpm. Press the stepped washer -1- as far as it will go -arrow- down and release the gas (the adjusting screw is on the second-highest step of the stepped washer).
Check the number of revolutions. Set value see table "Carburetor basic data".
If necessary, adjust the idle speed of the cold engine using the adjusting screw -2-.
Visitor comments