Richer means - Too much Fuel but improper burning. Rich mixtures are less efficient, but may produce more power and burn cooler, which is kinder on the engine.
Lean Mixture - Lean mixtures are more efficient but may cause engine damage or premature wear and produce higher levels of nitrogen oxides.
Proper AFR calibration is critical to performance and durability of the engine and it's components. The AFR defines the ratio of the amount of air consumed by the engine compared to the amount of fuel


.... And what petrol do u recommend??? And I dunno this is a problem or not.. When my engine is cooler it sounds normal... When it get heated up the sound from the head of the engine gets increased.... And something is vibrating near the engine
I can't figure out it.... Again these are not serious problem... AS200 is a amazing machine and the engine quality is above average
was huge fan of NS.. but no more NS on production..

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