The screw which tuned with a sparkplug basically is the A/F for Idling only...no use
For Carb tuning you need to tune something else and for Aisan Carbs on 4G13/15 can get 150% more torgue after tuning compared to stock
How To Tune Air/Fuel Ratio (4G13/4G15 Carburetor), Need ur help guys
Jan 22 2014, 02:46 PM
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