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Discussion Starter · #1 ·
Is there any carb of a bigger carb that will effectively work in the nsr like a 30mm upwards and also something better in the brakes. Like a four pot front brake? Beacause I hate the 2 pots,first they have nothing then bang they bite,the have sh*t response. Would steel braided lines fix this and how much would they cost. I only want to do the front as i dont do the rear.

Thanks in advance,Brian.
 

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yes a mikuni 34 will do , the only problem is the intake pipe and some mates on my french forum fit a CR125 intake pipe which seems the best compromise for a 34
 

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no for the bigger caliper (you can go for a brembo but cost really too much) , breaking can be improve by changing the pipes because part of the pressure is lost with the pipes distortion . probably by keeping the original jetting inside the 34 it will be ok , this is a thing to DIY trying to combine a reasonable fuel consumption and a healthy engine , this must be done step by step and i can tell you that fitting a 34 carb is not so easy . if you are anyway going to fit a 34 i can ask the plan from my mates but if i was you i wont do that , a nice jetting , air box opening will do something good enough . mine run 12200 rpm (unload) 11500 in 5th gear 11200 in 6th and reach 172 km/h (107 mph) with 15 stones on the bike
 

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Discussion Starter · #6 ·
To fit the bigger carb what would you have to do? Wouldnt you only have to change the intake and insure the correct jetting. And maybe a performance air filter or a bigger air box mod?
 

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the air box is not exchangeable . you must DIY the air pipe between air box & carb and open it a bit for air supply (see my file NSRtips.doc) then modify the intake pipe .
 

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first things first, check your head bearings. then check your brake pads condition and the condition of the fluid
 

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whats the spaceing bettween the two eyes for the caliper bolts? once you no that its a matter of finding a caliper with the same spaceing, might then need a spacer to get the pads central with the disk,

or you could have a bracket made up, eaiter way its not going to be cheap, cost me about ?170 to fit 6 pots to mine, calipers, spacers, braided lines
 

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joosep , brembo is very expensive , and the front brake is strong enough , just a bit of delay due to the pipes expansion . if you fit reinforced pipes you will correct this unconvenience for a reasonnable price . the rear brake is more a slowing down tool and i think it's a good thing because a strong breaking at the back will give plenty of fall down
 

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I've got to admit the std brakes on the NSR are capable of being up to the job, you've just gotta keep them in good nick. Put some new front pads in, new seals, bleed them and use stainless hoses to finish them off and they'll be more than adequate for the speeds an NSR can reach. I agree they have some fade if you ride the bike hard down windy B-roads, but for a 125 they can be pretty good.

I'm sure Brembos would be better still, but I wouldnt spend that sort of money on them because it wouldnt be worth it on an NSR.
 

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Ok, thanks for bringing me down to Earth
, I was quite p**sed off on the brakes and thought that only brembo will do.
But I think that I replace the pads and I noticed that the rear brake disc is quite ribbed.. Can anyone of You suggest me where can I buy them new for reasonable price ?

Thanks,
Joosep
 
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