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keith briggs
keith briggs Posted on Oct 21, 2022
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My bike has a flat spot at 5.000 rpm zzr1400

Carat get more than 90 mph bad flat spot any ideas zzr1400 it's not fulepump pump filter I've checked any help pls

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Larry Ng

Larry Ng

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  • kawasaki Master 14,591 Answers
  • Posted on Oct 22, 2022
Larry Ng
kawasaki Master
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Not car so moved to Kawasaki ZZR1400
no year told
nobody can guess year, and matters huge. for fueling or spark.
seems like fuel starvation to me, but i never go 90MPH,
sensors read wrong
or fuel pressure low
or injectors partially clogged.
gee most MC sit 90%of the time, parked in garage until spring
and the bad fuel takes its TOLL.
see it 100s of times, endless ,same with RVs ,.ATVs etc for same reasons. bad fuel effects.
flat spot is not spark, its fuel, spark is violent when bad,misfires .
so fuel it is , focus on fuel
1 ;bad fuel then filters a mess. the
2: injectors clogged (ish)
3: or ECU did it on purpose , inputs wrong make outputs wrong on all computers,ECU etc. scan the PCM? per service manual.

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Where to find speed limiter on gsxf250 suzuki ,MOTORCYCLE.
no yer told 1980 up 2022+, not told moved you form cars to random
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IN STOCK OEM FORM THERE IS NO SUCH THING.

not told what speed means, RPM or MPH
mph is not limited unless rpm IS.
RPM is engine speed. and RPM limiter only happend on newer bikes. with EFI , via ECU RPM limits in software.
gee no bike told year, nor if there are letters at the end of 250 like R
250R is 2022 made, so there ar e 40 years of this bike made.
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