Lowtimer,
(...and not wishing to hijack this thread into a Yak debate)
Very novel how carb ice on the Yak actually affects throttle lever travel rather than the more common choking the carb on Western engines.
Strangest incident I had was whilst extended taxying from one side of the airfield to the other. The RPM kept creeping up and up and up despite the throttle being fully shut. By the time it got to 60% the brakes were getting a trifle warm and my right hand knackered. I was about to cut the switches and roll to a halt when I decided to try the carb heat. A bit of a fiddle as the right hand was in fulltime use on the brakes so the left hand had to cross over for the lever. within 10 seconds the RPM fell back to normal then the engine spluttered as it swallowed the water !
