swiss honda nsr 125 how to unrestrict??

[frencho]

hi all this i my first post been looking through the pages for info on unrestricting my swiss nsr 125 ive been reading about a guy on here called alains who knows the nsr inside out by the sound of it has anybody else unrestricted there swiss bike.my bike came with a tv 78 power valve controller and a c1626a cdi unit been reading that these are ok?been reading and it says to unconnect the orange/white wire on the cdi which makes a loop and to unconnect a connector under the tank which is a red connector with a loop on it?im fairly sure i dont have the red connector on my bike but will double check or is there another one?and i quess you still need to unrestrict the exhaust and take out the restricter plate in the air intake and up jet can anybody tell me if this is all i need to do or do i need to do more any help would be really great thankyou in advance

[N cee thirty]

yeh wait for alains to come along,he's nsr king
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'00 Aprilia RS50 > '92 Honda CG > '99 Yamaha Fazer > '91 Yamaha RXS > '79 Suzuki X5 > 01' Honda Cg > 07' Honda Cg > 82' Kawasaki Z200 > suzuki gsxr 400 gk73a > honda vfr 400 NC30 Mod 2 Passed 09/06/2011

Jewlio Iglesias wrote: I actually did vote BNP once

[frencho]

thanks mate i hope he reads this im looking forward to seeing what he says

[alains]

of course , i will do
1) find the horrible shunt on the red connector and take it off
https://www.geneva-racing.ch/~alains/shuntr.jpg
2) buy a CI626 and throw away your CI626A (ebay uk)
3) buy carbon membranes for the reeds
https://cgi.ebay.de/100-Carbon-Membrane-Honda-NSR-125-R-JC22-036-/120546013795?pt=Motorrad_Kraftradteile&hash=item1c111a3263
4) buy new jets : main=138,idle=42,power=65 see https://www.dellorto.co.uk your carb is a 28PHBH/FD
5) use only BR9EIX plugs
https://motors-parts.shop.ebay.co.uk/i.html?_nkw=BR9EIX&_sacat=131090&_sop=10&_dmpt=UK_Motorcycle_Parts&_odkw=honda+nsr&_osacat=131090&_trksid=p3286.c0.m270.l1313
then the rest will a question of precise tuning
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the worst day fishing is better than the best day working

[frencho]

thankyou alains for your reply.i have read on here that there was a guy who tryed the 1626 and 1626a and he found the 1626 made no difference so he sold it and used the 1626a so would that be ok to use?also if i do use the 1626a do i need to disconnect the orange/white wire on there that is in a loop?so just to check ive got to unrestrict the exhaust or change for another one.take out the plate in the air intake.upjet.use carbon reeds.and use a br9eix spark plug.and find and disconect the red connector shunt.if i do have to use a 1626 is it a straight plug in and go or is there any wire swapping to do?when you say presice tuning do you have anymore details sorry for all the questions just want to be sure before i start thanks for your help

[nsr_J22_FOXEYE]

[alains]

do exactly what i said , i will guide you when everything be done
put on side every comments about how to do it , i know what i am talking about . download my file https://www.geneva-racing.ch/~alains/NSRtips.doc
about the CDI , no wires to swap , but if you want to be sure , look the wiring diagrams CI626 & CI639
____________________
the worst day fishing is better than the best day working

[nsr_J22_FOXEYE]

while you are here alain, what is the difference in 28mm and 34mm carb ? past the obvious size difference?
____________________
Never Ride Faster Than Your Angel Can Fly

[alains]

not a lot and it doesnt worth the expenses . you need a new manifold (from CR125 2002) , a new special
VHSB34 Special Racing carburettor Part No - R9784R £189.98
your gain may around 3 Bhp , top speed +6-7 MPH
____________________
the worst day fishing is better than the best day working

[frencho]

ok thanks again alains.i keep trying to download the file then every time i go to open it theres nothing there i quess im doing something wrong just cant seem to find it on my computer anywhere any ideas?could it be emailed to me instead is that possible if i pm you my email?? thanks again

[salty21]

it was me who bought the 626 to replace the 626a, i honestly couldnt tell a difference between the two.

The orange/white wire on the 626a is one of the biggest restrictions of all, you can get at it to pull it off by just removing the seat IIRC. Its only a small loop, and i believe it is for a black box that they have in germany to restrict to 50mph, but even with the black box not installed and the wire just in a loop, it still has a pretty strong effect on the power.

To remove the intake plate you will most probably be faced with security bolts that can only be tightened and not undone so you have to devise a way to get those out.

what year is the bike?. Not sure if there were any differences in restrictions from year to year but im going by mine which was a 2001 bike on an 04 plate
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04 NSR 125(sold) ---- 03 CBR 600rr(sold) ----90 pan euro ST1100 '' ----02 CG 125
94 CB400 Super Four ---- 2000 VTR SP1 (sold) ---- 08 ninja p8f(sold, meh) ----05 CBR600rr

[Mark65]

downloaded fine for for me, pm me your email and i will send it if you have trouble.
Mark
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07 Yamaha YBR125, 07 Honda CG125 , 15 CBR300R (Chocolate Crank, Deaded), 16 CB500FA, 19 Honda Forza 300, 70 Suzuki SV650

[nsr_J22_FOXEYE]

[frencho]

thanks salty21.mines same 2001 on a 04 plate.so i quess your running yours unrestricted with the 1626a with no problems then?i take it you did have the shunt in the red connector on your bike?did have a quick look the other weekend in the black box but couldnt see it quess i better have a better look.thanks mark65 will send you pm as really cant seem to download the info thanks all

[salty21]

[alains]

ridiculous . here in france & switzerland we made power test with the proper tools and the CI626A give the same diagram as the CI639 . the CI626 was made to work with the TV78 . in switzerland in order to limit power they built a shunt to avoid the TV78 opening & closing the flaps correctly . so without the flaps working , you need a different diagram of ignition (so was the CI626A made for) , and consequently if you get your flaps working , you need a CI626 diagram . so , all comments from "pseudo" experts are bull shit
____________________
the worst day fishing is better than the best day working

[salty21]

[frencho]

thankyou to all for the info im new to the nsr so am trying to find out as much info as possible i hope not to cause any rifts beetween people tho i am looking for a 1626 on ebay at mo but was just trying to find out if it is ok to use the 1626a untill i find one i probally wont unrestrict till it gets warmer so going to source what i need and find out as much info as possibe first.on that note where is the exhaust restriction likely to be on my swiss model please thanks again

[nsr_J22_FOXEYE]

Relating to nsr.... How do I identify what jets I have?
____________________
Never Ride Faster Than Your Angel Can Fly

[salty21]

the size is stamped onto the jet
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04 NSR 125(sold) ---- 03 CBR 600rr(sold) ----90 pan euro ST1100 '' ----02 CG 125
94 CB400 Super Four ---- 2000 VTR SP1 (sold) ---- 08 ninja p8f(sold, meh) ----05 CBR600rr

[frencho]

alains.i take it the ngk br9 eix is the iridium plug?also can i do any of the unrestricting without upjetting ie is it safe to run the bike with the shunt on the red connector taken out or do i need to do it all at once?im quessing i will need to ajust the carb once all restrictions are removed is that the case?if so can you tell me how to do it please thanks once again for your help

[alains]

do exactly what i said and the upjetting is the most required thing to do . 2 strokes engines do not like lean mixture
____________________
the worst day fishing is better than the best day working

[frencho]

ok thanks will do.ive ordered the upjet kit and the carbon reeds and the br9 eix plug just got to get a 1626 cdi unit and remove the other restrictions then the derestrition can begin thanks again