Carburetor Tuning - ICS 680ES Manual De Mantenimiento

23. CARBURETOR TUNING

23. This section covers carburetor tuning. Included in this section are basic
settings, idle speed adjustment, and complete adjustment.
The carburetor has been set at the factory for optimal performance and compliance
to EPA Phase II emissions standards. However, minor adjustments may be required
in certain conditions, such as high elevation.
NOTES:
• These power cutters are equipped with an electronic speed limiter, as part of the
ignition system. This will prevent the power cutter from going above 12,000 RPM.
Attempting to set the carburetor mixture to increase the speed or power beyond this
limit may seriously damage the engine.
• Always check the air filter, pre filter, fuel filter, and spark plug before making
carburetor tunings and clean or replace if necessary.
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680ES SERVICE MANUAL