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Old 11-23-2008 | 03:14 PM
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towetsk
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From: Chula Vista, CA
Default Compression Test
Hello all, i'm new to Nitro planes. I just picked up a used OS 91 Surpass and I can turn the engine over with out a prop but with my fingers? I'm not sure how high the compression are for these motors? I haven't fired it up yet, but I was wondering how is the a compression gauge for these engines? What should the compression be? Thanks
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