OK, easy one (relatively) first... the reed cage with the tab is not an NSR250R cage, of any model variation. There are numerous Honda models that use a similar design and bolt pattern though, including some RS125R and RS250R, and even some CR125s. I'm pretty sure some of the European NSR125s use a similar cage too, as does the Asian market NSR150SP. I don't envisage any detrimental effects using it.

The plastic blocks are critical to performance, and deleting them will delete 90% of your throttle response! HRC also made a kit part. (See the bottom of this page: NSR250 tuning)

If you can get them, get OEM NSR250R reeds. Absolutely nothing wrong with OEM Honda, and we've never been able to measure any difference between them and carbon reeds on the dyno. Carbon may give a crisper throttle response in a minority of cases, but it's negligiable. They may be more easily available in some markets though.

We've never had any issues reusing the screws and spring washers. Honda don't specify using any kind of thread lock, and I expect the heads would likely sheer off (or round off) next time if thread lock was used on assembly. Of course, YMMV, and if you feel more comfortable using it, go for it!

There should be no need for any kind of sealant on either the inlet manifold or the reed cage gaskets. Always use OEM gaskets. I have never, and I mean NEVER seen a gasket set comparable to OEM Honda items.
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Andy.
NSR-WORLD.COM

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