full power NSR125R

[mRC]

remove the exhaust
in there is a "o" ring, you need to find how far it is down and cut the pipe in 2, once you have done this drill the "o" ring/washer out. then get it weldered back up. this will give you about another 10BHP ( wicked )

another one is to remove the seat. at the back near the lights there is a black box. take a look at the plugs. you will see a blue wire with a yellow rubber band round it, cut this wire. then also cut the yellow wire.

join them both together ( this will remove the rev limiter )

heheh so more power

i have only done the exhaust restrictor and it goes like F*ck but it should rev out now right up to 100MPH or more

make sure you have the right jet size but it should be jet 35, this is after you have moded it all

mRC

https://www.modifications.net

[Guest]

one thing i forgot is that the bike i`m working on is a 2001 model.

i know for a fact that some models have a shitty CDI unit that has to be changed but get a import saves a lot of time and money.

email me if you need a helping hand

btw make sure when cutting the exhaust you dont take much away from the exhust as it will leave you short for fitting it back to the frame ( near foot peg ) i know because i did it but its not a major bummer. just leave that out.

sales@modifications.net

https://www.modifications.net

[colwood]

tried the wire cutting tip, bike wont start.circuit diagram shows the BLUE wire with YELLOW TRACER BAND comes from alternator,YELLOW/BLACK wire goes to coil and rev counter,so by cutting and joining seems to by-pass an important piece in the CDi unit.Any other suggestions?

[Jolly_Thrasher]

Sounds like ure flooding us with a load of ball shit mate to fuck our bikes up, erm like yeh, good 1!

[Korn]

Handy Hint: The rev limiter's there for a reason, if you've not done significant work to the engine to allow it to rev higher, removing the limiter and revving the tits off it will only cause it to blow up sooner...

Oh and you've got the wrong pair of wires too, sorry

[Scooby]

Well, all I will say is I am glad I bought a UK bike to start with and followed Korn's guide on nsr125.com hehe so much easier, none of this cut this wire crap and black boxes......fcuk that.
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A big enough hammer fixes anything!

[minesweeper]

Cut the red wire.... NO the blue one.... *boom*

[Stevo]

Actually i think you'd be a fool to buy a UK spec NSR at full price, as your getting severely ripped off for such a small bike that has been around a long while, and doesnt have any special technology worth screaming about. If you can get a new import for less than £3000, then surely it cant cost that much to de restrict it, its just that i suspect people cant be bothered to find out how, or where the real restricion is, and thats why alot of people go about telling bull shit, or saying dont touch an import, as it will cost loads to sort out (new cdi's etc!). Remember, whatever country the import NSR was made for, the kids will be doing the very same thing with theirs by de restricting them as soon as they get them, so someone knows what to do somewhere, or else no kid would buy a restricted 125, if they knew that they couldent be de restricted fairly easily, once you know how. Anyway all you peeps that buy a UK NSR you still have to piss about with the exhaust and inlet manifold, to de restrict your bikes, so it aint really any more hassle to go for an import. Another thing is that the Manufacturer wants to spend as little on such an old model as they can, to restrict it for differing markets, so generally they are hardly likely to engineer in complicated restrictions, that cost more than they need to, just to meet the laws for different markets. In ultimate performance terms, the Older NSR's SP types from italy are still far faster than anything that you can buy new, so as far as im concerned a cheap secondhand import, if in good nick, is a much better option than wasting the fat part of 4 grand, on a bike that no one will keep more than 2 yrs anyway.

[tanner18]

i could not be bothered to read ur post it was that anoying inssurance is alot dearer for imports i know cos i compared quotes when i was thinking about getin one glad i didnt and mate av a look at some of the old posts and read about all the problems poeple av with them especially with the de restriction process c mate u can get to the point in a matter of 5 to 6 lines, not half a bloody novel.
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inline 4's rule

[Scooby]

Ok Stevo my first point.........

I have a Y reg NSR125R, 2500 miles on the clock, mint condition I have paid £1800 for it.

My second point..... You find somebody that knows how to derestrict an import NSR125, doesn't it seem as if nobody can find out as the question of derestricting imports has been asked that many times. And by the way, you can get a new UK NSR125 for £3199, and imports are going for £2999, so for £200 extra I think an official UK bike is worth it, seeing as when you sell it it will be worth more anyway.....
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A big enough hammer fixes anything!

[johnny]

Only the imported ones have the shitty CDI unit. If its a uk/irl model you just drill the welds on the exhaust restrictor and remove the intake restrictor. You also have an option of a larger front sprocket for a higher top speed. Theres no need to cut the exhaust in two i think.Go to www.nsr125.com for full instructions
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Vrooooom......ahhhhhh....crash!!!!!!!

[Guest]

first of all an import bike dosnt effect the insurance because you have paid less for it so then the bike isnt worth as much thus cheaper insurance you dont have to be a nerd to know that i am 18 with a full license and 2 yrs ncb i got mine tpft for 400 if i had a uk one it would have cost me over 500 so i am glad .

They all come out of the factory the same they dont go "oh this ones going to holland we wont put these engine nuts on it" they are all the same and even if you can get a u.k on for 3200 that is still 200 more to spend i got a racing exhaust and expansion for that. i agree with stevo an import is a lot better and cheaper.

seems to me that tanner know bugger all about....well everything

[Scooby]

Yeah ok...we'll have to go to box hill sometime.......we'll see you there m8 we will be passing your nsr which is 'out of the same factory' but with a race exhaust on and expansion, and ours has standard exhaust on. So basically you are saying you have spent money on race exhausts and it is still not as fast as a UK bike.......righto joe.....
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A big enough hammer fixes anything!

[Guest]

ok scooby bless you i bet you are a right so and so. i feel 4 u though not being a part of anything always the odd one out but dont worry though help is at hand its called a walking stick and a zimmer frame lol

[Keen]

I dont get it

[Scooby]

Me neither.....bloody import buyers......hehe
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A big enough hammer fixes anything!

[G]

Your best bet is probably to try and get hold of a factory manual for your model. This should have details of the standard settings for your carb (ie no of turns from fully in for each jet)

[bigpoppa18]

U said that a new Honda NSR uk spec would set u back short of 4grand & that an import is only 3grand. well i brought a 2002 model NSR & i only had to pay 3grand for it so wherever u go for prices u must be geting surverly ripet off by paying that amount of money for what u say "is a small & old bike". Anyway what u said about geting an import bike is beter then a uk spec is not intierly right as when u buy an import modle u can end up with a few problems which u could find hard 2 get the bits for them as u have to get the bits from the country were it was imported from! I should no as my old man brought an import bike & when he wanted to get parts for it he found he hat to pay more money so he said it is better to stay with uk models unless u no what ur doing with imports.

[cagiva gezzer]

any boost from cutting and re-welding the pipe will prob come from the fact that it reduces the pipes lengh, and therefore makes the pipe act at higher revs and moves the power up the rev range.
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"because one stroke isnt enough and four strokes waste two"

[Scotty]

my bikes an old NSR F,
Doesnt seem to be as fast as the Faired NSR's.
But seem to be alot better at accleration.

All i can put it down to is the bike being lower geared and being unfaired therefore reducing its top speed.

If you say you can derestict your model import like that, then you probably can. but it doesnt go for all the NSR's.
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Regards
Scott

[True Blue]

[Ben]

[Ste]

Actually, they do care how much the bike cost's if it's going onto TPFT. If the bike gets stolen, they then have to pay out for it. Hence the questions about alarms, security, garages, your location and what's it's going to be used for.

Imports generally use most of the same parts as the bikes are all the same model, just with different country setup.

[Kickstart]

[TiN]