RCU Forums - OS 46SF running problems

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rgm762

08-16-2010 05:15 PM

OS 46SF running problems

we have a OS 46SF on the club trainer, Avistar, idles fine, full throttle is fine but when flying at about 1/2 throttle it surges real bad, we've already replaced the tank and fuel lines, and can see no air bubbles in the fuel line, any suggestions before I tear into the carb and try to replace the o-rings?

MetallicaJunkie

08-16-2010 05:28 PM

RE: OS 46SF running problems

take out the needle valve and blow some fuel through the carb nipple, it might have some debris in the needle jet.....

Dr1Driver

08-16-2010 07:36 PM

RE: OS 46SF running problems

Also make sure it isn't leaking around the needle in the valve body. I believe OS has a small O-ring in there to prevent that.

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