Warming up / Jetting changes?

I was thinking of leaning out just a bit. Tomorrow will be 70. It has been around 50. I was thinking just changing the needle position. Leaving all else and tuning with the screw. Any thoughts?

165 main, leave the stock needle in clip #5 ( or JD red#5 ), adjust pilot adjustable air screw to minimize backfiring on decel.

I'll give it a shot!

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