12-01-17, 11:59 PM
Most likely the EXUP servo motor which operates when the ignition is switched on.
Is your choke cable intact, check it by looking in from the left side of the carbs and operate the choke lever, you should see a lever operating and push out the choke plunger.
Is your choke cable intact, check it by looking in from the left side of the carbs and operate the choke lever, you should see a lever operating and push out the choke plunger.