I have noticed that my idle keeps dropping on my last few rides. 2016 Beta 300 with RK Head. I first noticed it probably three rides ago - when I would be pulling up to a place where we were going to stop, and the engine would die. This went on for a few times, then I turned up the idle and the problem went away. Rode yesterday, and the problem is back. So, either my idle screw is backing out – or something else is going on. Bike seems to run fine otherwise (lugging, mid-range, and top end). It has just lost the ability to idle. I will be taking the carb apart this week and be going through it – perhaps I will even buy a rebuild kit to be sure. Just wondering if there is something else that manifests itself as a dropping idle – other than carb related issues.
I saw on another site, a guy with a early model KTM 200 experiencing similar issues. Recommendation so far – is to replace the metering block (which I think is the same as the Mik Jet Block) gasket. So, all the more reason for me to just replace all of the gaskets. But if there is something else that is not carb related that could cause a dropping idle - let me know.
joe