Originally Posted by
kilfish
hi
got my self a very gentely used GX-3r
can you give me a good starting point on the Low speed needle (the one in the midle of the throttle pull)
i am new to nitro. i know it will need to be fine tuned on the track. just need a good starting point. is one turn out good?
thanks in advance
Rick
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.