Originally Posted by grizz1

Hi Rick, If your motor is a US model (which I guess it is) it will have the short low speed needle fitted, so base settings woud be around:

High speed needle - .5 of a turn in from flush
Low speed needle - 1.25 turns in from flush

This will get you going and then fine tune from there. Should be pretty close on the top needle, maybe a little tweaking on the bottom needle from that setting.
Be aware the top needle is very sensitive to adjustment (like 1/16 at a time).
Hope you enjoy the GX-3R, they are a great little motor.