Order of execution
1. Warm up the engine to operating temperature.
2. Connect the control tachometer and gas analyzer in accordance with the manufacturer's instructions.
3. Adjust idle speed to (750–850) min-1 by the stop screw of the first chamber throttle lever (shown by arrow).
4. Disconnect the crankcase breather hose.
5. screw (see fig. Quality adjustment screw (composition) Keihin carb mixes) set carbon monoxide level (SO) in exhaust gases no more (1,0±0,5) %. Check and, if necessary, restore the idling speed, as well as the CO content in the exhaust gases.
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