OFNA Racing 9.5 MBX RTR - Manual (Page 36)

TUNING AFTER BREAK-IN
Idle adjuster screw &
Barrel Stop
Lean
Rich
Close master needle by turning clockwise until it stops.
Then open needle by turning counterclockwise 3 turns
(rich setting).
When running car, adjust carb with 1/8 clockwise turns,
slowly leaner, until the top speed good. Check engine
temp, if possible, for no more 250 degrees.
Adjust barrel stop so it will not close, accept for a small gap.
This gap will be the idle setting. You will notice the idle will
increase with a wide gap.
Adjust low end needle for best throttle response. Use only
small turns. From idle, give it full throttle, if throttle is slow
lean out needle until good.
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