depends on definition of original and what judge or organization you're with. A new, NOS tank from honda, no matter the year, ( and identical to the original year part)is an original tank, replacing a banged up tank with that tank and the bike is pristine.....you have an original bike, the AMCA says so. Actually, it's an original, unrestored bike. Put a new, yamiya tank on the bike and that would make the bike unoriginal, and restored. Or,at least, an original bike with a repainted tank....5 point reduction... It is in original condition, but not original.
Now anyone can make a false presentation, but I can tell you that there are judges out there that really know their stuff.
So, does that mean you can take a pristine bike with busted side covers, tank, blinkers,etc., , replace them with correct NOS parts and say it is original, unrestored?.....ummm, well, yeah......unless others know, someone would have to prove otherwise.
Technically, any repainted, or aftermarket part makes the bike unoriginal
This is a short answer......I'm talking judging meets........so have at it....
