Help with carb (?) issues
My 2006 ninja, which has stock engine, exhaust and intake, recently began running poorly. It starts well, but is slow to operate off choke, will not idle, and the revs hang after acceleration. Midrange and full throttle performance are good. Fuel delivery is good. Valves are adjusted and plugs are recent.
I disassembled and cleaned the carbs (setting the idle screws at 2-1/2 turns out), and added fresh fuel, and it ran well for a few days, then settled into its old habits again.
Any ideas? The carbs were not really dirty when I took them apart, but I soaked and blew out the jets and passages. I re-installed all the parts correctly. I didn't find any intake air leaks (but maybe I'm not looking in all the right places).
Any suggestions based on experience would be appreciated. Thanks.
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