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503 Throttle Problem

by Scott McCarthy in 2 Stroke Technical Questions 6 years ago

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Re: 503 Throttle Problem

by Scott McCarthy » 6 years ago

Scott McCarthy

1 4 0

Unfortunately the problem came with the airplane, along with a lot of others.

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Re: 503 Throttle Problem

by Nick Axworthy » 6 years ago

Nick Axworthy

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Just home after the Christmas break Scott.

Do you have and EGT gauge fitted...if so what it indicating around what should be your cruis and WOT throttle....have you looked at the plug colours.

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Re: 503 Throttle Problem

by Scott McCarthy » 6 years ago

Scott McCarthy

1 4 0

Thanks for the CPS link. Good stuff. That's why I keep all my old catalogs. I have a Grand Rapids EIS that shows EGTs of about 1160 F at full throttle on the climb out. A bit on the cool side but then I'm running slightly rich to protect the engine. The plugs are a chocolate brown which agrees with running rich. Now that I can get back to the hanger I intend to check the enrichener circuits. It's about the only thing I haven't tried.

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