Majar flat spot below 5 thousand revs = normal or a problem?

[hollamat]

Hi all,

When i ride my bike (nsr125 2002) its seems fine if i keep the throttle pinned back and ride around every where at 7000 rpm or above, but as soon as i let the revs drop off to say 5000 rpm say for example coming off a round about or tightish bend then try to accelarate again the motor seems to hit a major flat spot! almost feels like the engine floods or runs out of petrol on extreme cases the engin e stalls!!

any ideas of what the problem might be?? or is this normal!

cheers all

[ProXimaCore]

I think everyone's NSR done this. Mines seemed to stop after it was warmed up and been right through the gears giving it high revs all the way.
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Honda NSR125R -> Suzuki GSXR400R GK76a -> Kawasaki ZX636 B1H -> Honda CBR400RR NC29 -> Nothing

[McJamweasel]

Its a 2 stroke. It has no low down power. To keep it moving quickly keep it over 7k.
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BCF: Be yourself, just don't be an arse.

[Kickstart]

Hi

As above, but it also has a slide carb (as do just about all 2 strokes) so giving it full throttle at low revs will screw the mixture up.

All the best

Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

[Wave2k]

same problem on RS125. seems to stop once it reaches right temp
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Ducati 1299 Panigale
2009 Corvette C6 z51
RS125->CBR400->RXS100->GSXR750K2->Ducati749S->CBR600RR5->TL1000R->DRz400->RSVR1000->Honda VTR SP1->CBR400->GSXR1000K6->Honda H100->CBR600RR3->Ducati1299