Don't be so down on yourself... for a start, it's not as bad as you think. What you have there is a 1988 NSR250R MC18 R2J! (Not that an MC16 is bad!)
So, as well as having the later 6-spoke wheels, you also have the bigger 41mm forks, updated 4-pot calipers and 276mm semi floating discs, 32mm carbs, and an easily delimited PGM-I ignition. You also have a rather rare set of Ethos Design race expansion chambers too, and once it's all cleaned up and sorted, you're looking at a quick little bike there. You never know, you might even pull the float bowls off and find an HRC jet kit in there!
It clearly needs a good going over, but it looks like it's all (mostly) there.
A couple of other notes from your photos:
- If you're wondering if the dipstick is broken.... no, it's supposed to be like that!
- The RC Valves (powervalves) rarely "wear out", but when servicing them BEWARE, the nut is LEFT HAND THREAD.
You can confirm your frame and engine numbers in the Technical Resources section of the main site.
Looking forwards to seeing your progress.
_________________
Andy.
NSR-WORLD.COM
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Last edited by Andy on Thu Jan 02, 2025 1:02 pm; edited 1 time in total