Question about Motorcycles
If it is under warranty , take it in for a warranty check
other than that it could be a problem ignition control module , breaking down at the high rpms
carby problems get worse with rpms and the idle /mixture screw is inoperable at high rpms
there is a possibility that it could be valve clearance for that cylinder but I would concentrate on the coil and ignition system area first
Posted on Apr 19, 2017
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Posted on Jan 02, 2017
SOURCE: idle speed problems
You have to sync thecarbs and also you will have to reset the air-fuel mixture screws.
One of the carburators should be factory adjusted, I dont wn a kawasaki but I own a YAMAHA SECA XJ750R and thro it I am sharing my experince.
Once you have located the factory preadjusted carburator you can thn set the others to its specs. I use the feeler gauge to do for my bikes carburators and it works fine.
With regards to the mixture screw..... get the all in tightened but slowly aas to not damage the pin end of it!.
Start the bike and get it to normal running temp and thn set the screws 2 and half turns out...you may need to set your idling speed before you begin this setting of the mixture screws, you prolly will hveto go higher on revs or vicecersa ....onc eyou are at the mixture screws and adjusting them , you will surely note the differenc ein sound of he bike an its idling ..
Hope this will help.
Posted on Feb 02, 2009
There have an air leak between the carb and the cylinder and/or the head and cylinder. Old hard / cracked rubber fittings and O rings are usually the problem. When extra air gets into the system it leans the fuel mix and the high idle is the result. It also means the engine runs hotter. Also, cracked or broken reeds can be a source.
Posted on Aug 10, 2009
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