Honda nsr 125 jetting

[eddie v twin]

Hi you were all kind enough to give me some advice about my wifes nsr 125 and its power problems, any way The bike is a 2002 derestricted , and fitted with a gianelli aftermarket exhaust, I have altered the jetting from standard 132-38-55 second notch on the needle too 138-42-65 fourth notch on the needle ,but the bike still has problems reving through the 6,000 rpm mark, below that no probs, and in the lower gears from 8,000 rpm it runs well, can you give me some advice on the jetting ie roughlt what sizes because I think it is still running lean, the bike feels like it wants to go but is holding back HELP !!!!

Eddie

[trafficdodger]

Try adjusting the mixture screw on the carb.

Cheers

Nige
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Present bike Yamaha R6

[alains]

the pilot screw (not mixture screw) is effective under 3500 rpm , afterwards it has no effect ! the problem here is mostly a valves timming problem and the needle must be on the 2nd notch !
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