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• Always optimal engine setting• Higher productivity
– Optimal engine performance at all times– No time spent on carburettor adjustments
• Compensates for– Different fuels; low quality, ethanol, alkylate fuel (e.g.Aspen)– Altitude– Temperature, cold start– Humidity– Clogged air filter
AutoTune ™
®
AutoTune- Microprocessor
• A microprocessor is integrated into the valve housing, connected to the ignition module, monitoring engine RPM as well as fuel-air mixture.
• The digitally controlled magnetic valves opening and closing is synchronised with the RPM.
• The frequency of opening and closing of magnetic valve is variable, which regulates the fuel feed.
Micro Processor
Fuel Flow
Valve
®
Standard Carburettor
In a standard carburettor the fuel flow is tuned by using the L and H needles.
Fuel Inlet Fitting
Throttle valve
Main Fuel Take Off
Low Speed Nozzle
Venturi
Main nozzle
Main speed Needle
®
AutoTune-Carburettor and AutoTune
Fuel Inlet Fitting
Throttle valve
Main Fuel Take Off
Venturi
Main nozzle
The AutoTune carburettor imitates the standard carburettor by using a fuel valve that can be opened and closed. The fuel valve is controlled by the micro processor.
AutoTune unit with
Micro Processor
Fuel Flow
RPM
Valve
®
AutoTune-Engine Diagnostic Tool
A service tool connecting computer with chain sawFunctions:•Diagnoses errors, codes•Tests
–Throttle sensor–Temerature sensor–Fuel Valve
•Service notes–Electronic service book
•Data–Operating time–Number of starts >1 min–Most recent engine fuel setting adjust–Max speed last run–carb temp
Max, history–Fuel settings–Time spent different rpm´s interval, idling, cutting, max
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