And even if it did leave Honda as an SP the chance of a lot of it remaining as it left the factory are slim indeed. A glance on Yahoo Japan or a wander around Red Barron in Bangkok will show there are more bikes in pieces than put togeather, let alone still togeather as they left Honda.
What do you call "the bike"? How much can you change before it's another bike?
Both my NSRs have had their wheels, barrels (multiple times), bodywork and petrol tanks changed. One of them has had an entire motor and the forks swapped out as well.
That's just me, I'm one person without a garage and the 4th owner of my '28 in the UK, it was in Japan for 9 years before it even got here, is there anything left unchanged would probably be a better question than is it a genuine whatever it is.
And looking at Rich's problems with his almost certainly untouched, very low miles Rothmans 21sp (could be the tidiest and most expensive example in the UK of what should be the most sought after model) a genuine bike is the last thing you want if you want an NSR to ride.
You want one that's been used, unfortunately used means damaged, repaired, bits swapped, parts robbed and so on.
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Please do not PM me technical questions, if you can't find it on the Forum start a thread