OS FR5 300 Sirius fine tuned second test run

Hello, my dear viewers and subscribers ! Today we continue investigation of Mr. Ogawa's "MIRACLE", or OS FR5 300 "SIRIUS" 5 cylinder radial engine. During the first test run few problems were noticed, #3 and #5 cylinders sometimes quits, only reconnection of the glow battery could resurrect them to the normal operation. Without 2 cylinders engine had lost at least, 40% of its power, so it was necessary to solve this problem. Also, engine needed a few more hours for run-in procedure. Some engines reviews authors from M.A.N. magazine also recommends more run-in time for that engine. After a few additional run-in hours, engine was adjusted and fine tuned, to achieve an exact balance in between lowest possible idle, highest possible TOP speed and instant throttle response. After watching this story, you can judge how I succeeded. The first video titles were changed, due to the fact, that all engine's problems were successfully solved, and this video was much more dedicated for the test run of the fine tuned engine. Please, pay your attention on the engine's sound, especially at low idle speed. The sound of this 5 cylinder radial running engine has to be heard to be appreciated ! Hope, that you'll enjoy this test run. Thank you for watching and have a nice day !