OS FS 70. Surpass. Part 3/3 Test Runs

[@klaudiodrumc]

Great job!! Beautiful engine 👍

[@pietmalan2858]

Sounds awesome.
You are truly the RC Engine Whisperer!

[@homienat3374]

Nice they are just a great engine ,sound spot on ,great job on rebuild mate thanks for sharing, im lucky to have 2 in my collection 🤙🤙

[@rcaeroenginerepair]

Thanks👍

[@rubinreiter6351]

Those OS engine don't need an electric starter. Prime and flip it clockwise and it will run on first try if well adjusted.

[@rcaeroenginerepair]

Yes. Once tuned they start very easy. 👍