Your pilot is probably fine, but take a size 40 with you in case the airscrew is not enough. If you are hard on the throttle, then I would probably start with a 172 mainjet. Otherwise I would drop to a 170.
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Mike Baxter
2005 GasGas EC300 (Ohlins front and rear)
2007 Yamaha FZ1
2003 Pampera 280(hers)
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