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Pure sound of Moki radial with Seidel Prop - Moki 257 - 250cc petrol 4T 7 cylinder
Enjoy pure sound of this incredible Moki radial engine. This is after 4 liters on 1:30, now 1:50 with Valvoline Synpower 2T oil (full synthetic) and with really big 34x14" Seidel Prop custom Z37 Cmelak scale prop. Absolutely no problem for this big radial engine. Spin up is very fast and idle is around 700 rpm. Lowest idle is between 500600 rpm, stable.
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