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I have a 1991 NSR125FL which was originally imported from Italy. My CDI is different to both of those you have listed - mine does not have the extra green/white wire. I replaced the unit a couple of years ago as my bike was popping and misfiring. I picked up a CDI from a guy on here, but it was a UK spec CDI (with the green/white wire) and it simply refused to even start. I then picked up another CDI the same as my original and it cured the problem. Any ideas if my CDI has a restiction in there?

My bike reaches about 85mph pretty effortlessly, but 6th gear is basically an overdrive. The bike will rev-out in all gears including 5th, but 6th gear doesnt do anything at all, the speed drops off if anything.

There are no restrictors in either the exhaust or intake as I have checked these when I rebuilt the engine. I'm now wondering if my CDI or powervalve may have a restriction somewhere.

I'm thinking about stripping the bike down over the next few weeks and give it a good clean. Might even paint the Alcast frame another colour - metallic gunmetal grey? The half-fairing will be coming off and sprayed also, just not sure on which colour scheme to choose.

and one last question - Do you know if the Headlight bulbs are the same for both Alcast and foxeye models? My bulb has blown so will be needing a new one.

thanks,

=chris=
hi i have the ns125r it dose the same in 6th gear and i have no idea why so if you can find out be for me could u let me mate thanks paul
 

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Tard Wrangler
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A full power NSR will hit the redline in 6th at 100mph on stock gearing, so it's not an overdrive at all, it's perfectly geared.
 

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hello, i am wondering and have only one question about RC valve:
my Servo motor isn`t moving, so isn`t working servo controller or servo motor yes? i am wondering, is danger and is it able to damage anything for my NSR? my NSR running normally and i have only problem 5-6k RPM (it`s thinking about 2-3 seconds) but itsn`t not big problem for me if not damage anything..... Thanks a lot
 

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Hi all!

I'm new here, so if this question isn't exactly in the right topic, apologies in advance.

I bought a new Arrow exhaust system for my '97 NSR 125. After installing the exhaust, I noticed something regarding the silencer.

You just slip it onto the mid-pipe and tighten everything up by using the mount underneath the rear peg.

However, there doesn't seem to be any way to tighten the connection between the silencer and mid-pipe itself. When idling, you can see some smoke escaping from the silencer. There were no gaskets supplied in the package either.

Has anyone else bought an Arrow exhaust for their nsr? How can I tighten the silencer properly?
 

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Maybe I will upload all the files I have, including the Alains NSRtips. I found this colored wiring diagram on a Facebook group called "Honda NSR125 Owners", I encourage you to join us. Hope it helps future generations 🤣
Honda NSR 125 manual is still available to download on the web so no problem.
Reference illustrations and parts numbers can be found on websites such as bike-parts-honda or cmsnl.

If you need anything more let me know, I might be able to help. The community around Honda NSR is still quite big and we enjoy our little smokers :)
 

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