Nsr 125 opinions

[RSD00]

Hi, i recently upgrade my nsr bike, i got off restrictor box “alphatechnik” to go over 8000 rpm, i bought nsr jetkit upgrade, iridium sparkplug, carbon membranes reedvalve, conical air filter, and my exhaust is stock.
It runs very fast to 100km/h, but from 120-125 gets stuck and up very very slow, what should i do ?

[Ste]

Remove the restrictor from the exhaust?

[RSD00]

Idk if is removed, rest of restrictors are off exhaust idk, he could be the problem?

[Ste]

Were it me I'd certainly want to check whether the exhaust is restricted.

You can keep throwing money at things like a jetkit upgrade, an iridium sparkplug, carbon membranes reedvalve and a conical air filter but you might as well be flushing your money down the toilet if the exhaust still has a restrictor in it.

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There's a lot of confusion regarding the restrictions on NSR's. Our resident expert disagrees with my findings.
I had 2 and both had restricted pipes. A full Arrow system made a huge difference on both bikes.

Out of your upgrades, I would bin the silly air filter though. All they do is cock up the jetting. An unrestricted NSR with standard airbox is quite capable of over 160KM/h with a pipe and upped jets. I found the forums resident expert's jetting tips way too rich on my bikes, even with the Arrow pipe.

Both actually went better if you rolled off the throttle a little at full pelt. I suspect the main jet was a couple of sizes to large for my bikes.
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[stevo as b4]

I do love how many BCF threads start with:

"My NSR125 (or similar bike) runs fine and starts easily, but it won't go over 8000rpm."

It's like it's the end of the world, and often it's people that don't have a licence to ride the bike they have. Explain it to me why all these whinging people have so much frustration with bikes that don't exceed 8000rpm?

[Easy-X]

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[RSD00]

I dont have limiter in exhaust

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