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Old 02-25-2009, 03:08 PM   #1
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Arrow novarossi 3 needle carb settings??

anyone know what the baseline settings are. its a 528x with a 3 needle top carb.
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Old 02-25-2009, 03:27 PM   #2
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Your "crossover" screw should be "flush" to 1-turn in (clockwise).

The top end/Main should be: 4.5 turns out from fully "closed"

The low end/idle should start (and be rich) at 1-turn in from flush (if the engine is broken in). You may end up going down *up to* almost 1.5-2 turns in on the bottom (from flush). If the engine is new/not broken end start with the bottom needle flush.

Idle air gap should be .6mm to start with.
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