O.S. Engines Support Ask Bill Baxter your questions about O.S. Engines.

FS-120s III

Old 09-09-2002, 02:18 AM
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Default FS-120s III


my question is with the new way you have this engine venting back into the intake manifold should i see a increase in exhaust smoke in flight? i see this off and on not all the time but it will have a visable increase in exhaust smoke maybe 2 or 3 times during a flight with no increase in power or decrease

i have this engine in a super sportster 120 any prop sugestions?
using a 15x8

thanks you for your time
Old 09-09-2002, 05:19 PM
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Default FS-120s III

All of the pumped versions of the O.S. Max FS-120 Surpass have had the crankcase vent piped to the intake manifold. This helps get rid of the spent oil that gets into the crankcase. It also helps with the airflow through the carburetor venturi, because of the pumping action that happens.

Just set your engine normally, and you'll be fine. Don't worry about the smoke trail. It will vary from fuel to fuel. Just get used to using your engine with one kind of fuel and learn to recognize its behavior.

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