Question about 1999 kawasaki ZX-6R Ninja

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I have recently noticed my t reg zx6r has a major flat spot between 1000 and about 3500 revs and if i hold it in between these 2 points it rumbbles as if its over choking, ive checked the plugs and leads and have cleaned the air filter, it just sound really rough, has any one any ideas please..........

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Sounds like your throttle bodies are in need of a service. Pay close attention to your pilot screws as they control the fueling of the bike from start up to around 4,000rpms

Posted on Jan 15, 2018

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Check for vacuum leaks around the carb. intake boots. If there are no leaks take carbs apart and clean the main and intermediate jets. you may have to possibly rejet it with different size jets. Have you made any changes to the bike's engine or exhaust?

Posted on Jan 15, 2018

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Posted on Jan 02, 2017

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SOURCE: wont run /idle

i'd start with removing the carbs and giving them a thorough cleaning as when bikes sit for so long, the carbs begin to get gummy/varnished from the old gas.

check for blocked holes in the pilot jet & main jet and look for "hard & dried up" gas in passages. be careful of the float bowl gasket as to not tear it or you will need a replacement.

Posted on Mar 06, 2009

seanpwright
  • 2030 Answers

SOURCE: 1988 Kmx 125`hits short flatspot /stutter at 8000 revs

You changed the back pressure in the exhaust and that is what causing your problem either put the washer back in or have the carb properly jetted

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/sean_54c3a3dc48a7773c

Posted on Aug 27, 2009

ollie reece
  • 1167 Answers

SOURCE: kmx 125

on carb is a screw the idle screw turn this in 1/4 of a turn with the bike running at a time till it runs at 1000 rpm or 1200rpm db9967d.jpg

Posted on Sep 27, 2009

  • 164 Answers

SOURCE: missfire on kawasaki zx6r j1 after mini service,

Are all the plugs properly tightened & are all the leads on properly give them all agood firm push occasionally they can feel like they are on & besitting lose on top is the air filter element sitting correctly It may be causing an obstuction of the air intake if you have used an after market air filter it could be that it is heavier than the standard item & restricting air flow

Posted on Feb 27, 2010

  • 1 Answer

SOURCE: are my carbs blocked

it aint a carb prob i have the same problem. i have fitted new carbs,spark plugs ht leads only thing i can think of is valves?

Posted on May 01, 2010

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