Flatspots

[nosaj]

My 98 fireblade has a flatspot @5-6000 rpm, the bike is standard. Shit, I can't belive there all like this

[DennisTheMenace]

Get the carbs balanced that should sort it

[cazzo]

My 916 had a flatspot when new between about 4000 - 5000 rpm I was told it was 'programmed in' to help it pass noise emissions test (they test the noise level at a certain rpm) Soon got it sorted as the 'chip' for the 'termis' has no such flatspot (might not pass noise test though) but it must be possible to tune it out without replacing the cans - on 916 you need to alter the chip & fuelling - but on a Blade I would imagine a good tuner with a Dyno could sort it

[carrie78]

So it needs something like an ECU remap?
Is this right?

Thanks
Carrie

[iguana]

carrie78 said: So it needs something like an ECU remap?
Is this right?

Not if its got carbs- which im pretty sure a '98 blade has. A Dynojet kit and proper set up should cure it.

[TLRogue]

954 Girlie....how did you feel after spot was....flat, flattened...did you cry?Was there much mess? Did you clean it up or leave it to the magpies and all the other critters?

[carrie78]

Bit of WD40 and some gaffer tape and i'm sure he'll be fine.
Seems to fix everything else.

Carrie

[Tim2100]

My 98 fireblade has a flatspot @5-6000 rpm, the bike is standard. Shit, I can't belive there all like this

All bikes are like this as the noise emissions are tested at just over 5000 revs.

Solution:- Get it bike remapped & retuned
OR :- Drop down a gear and GLF

[dern]

If the flat spot makes a difference to your acceleration then you must be wanted to accelerate hard so it baffles me why you are sitting at or below 5000rpm anyway. I would only go below 6000rpm in town or when starting or stopping. If I slow down so I go below 6000rpm I change down. It's a bike not a car, use the lower gears.

Mark

[RUF 3]

The majority of bikes have this flatspot in standard form. Normally a decent can and rejetting will sort it out. It is often difficult to cure if you use the standard can.