Gas Engine won't spool up past half throttle - Page 2 - RCCanada - Canada Radio Controlled Hobby Forum
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Old 09-26-2013, 01:30 PM   #11
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Re: Gas Engine won't spool up past half throttle

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Cleaned out the carb, tried a new spark plug and the engine ran well for about a half-dozen flights. Then the idle started to act up, wouldn't come down ,had to make adjustments. Flew again, landed and then the high-end spool up problem was back. I've decided to retire the engine. Thanks for all of your suggestions.
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Old 09-26-2013, 02:52 PM   #12
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Re: Gas Engine won't spool up past half throttle

isn't sputtering a signal that it's too rich?

what did the old plug look like? specifically what colour?
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