I agree - there's insufficient data here to make any sort of evaluation.
Please let us know what is meant by 'won't hold a tune'. Will it idle smooth after an adjustment, then later it doesn't? Give us the exact problem.
It sounds like there's no specific data, just what was given by a friend. When the bike arrives, let us know what you experience and then we'll get somewhere! But till then, just study up. Perhaps hit an airhead tech day or two and watch the guys tune them up so that you know the drill when time comes to do yours.
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