Developed a very recent high idle on my '09 800r. Found the problem to be 3 of the 6 reed cage bolts had backed out on mag side. I had recently replaced the stock rubber boots with the one piece Boyeson Rad valve with the metal neck. Nice units. Sled idled, ran beautifully for two days, 450 miles until I got it back to trailer, and then all hell broke loose. The previous owner had installed the Rad valves that go inside the rubber boots. I am thinking that the threads on cylinder that the reed bolts thread into are now worn a bit, and with my reinstall, I should go red threadlock and either a lock washer or Nordlock. I got lucky this time, don't want the bolts backing out again. Suggestions?