How much to up jet with bigger carb

Discussion in 'General Tuning' started by Paul1574, Apr 27, 2021.

  1. Paul1574

    Paul1574 New Member

    I have a Yamaha aerox with dellorto 17.5 carb and am thinking about getting a stage 6 21mm carb how much should I up jet? I will do plug chops just as a ball park amount

    currently I have
    Airsal 70cc kit, full circle crank, 17.5 dellorto, yasuni exhaust, pod air filter and a 138 jet

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