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Old 01-28-2009, 09:57 AM   #1
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Default 21 Circuit tuning issues

Am am having issues trying to get my motors to run hotter, they cant get to 100 celciius without choking? I am running a #6 or #7 NR plug with .7mm head clearence. Pipes are 2052 and 9886, they are non conical and the carb inserts are between 8.5 and 9mm.

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JP Pro

Thanks guys.
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Old 01-28-2009, 01:17 PM   #2
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Am am having issues trying to get my motors to run hotter, they cant get to 100 celciius without choking? I am running a #6 or #7 NR plug with .7mm head clearence. Pipes are 2052 and 9886, they are non conical and the carb inserts are between 8.5 and 9mm.

RX21
NS21P
JP Pro

Thanks guys.
If your motors are running fine with under 100 Celsius and fuel last for 5 mins then why would you want to make it over 100 Celsius?

If you have speed, if you see smoke, if it last 5 mins then who cares what the temperature is.
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Old 01-28-2009, 04:10 PM   #3
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Don't worry about it unless it starts loading up through the infield. In that case try leaning the bottom instead of the top.
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Old 01-28-2009, 05:57 PM   #4
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I dont tune by temp. Use temp readings for reference/diagnostics. Use the sound and performace to tell you the tune is correct.
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Old 01-28-2009, 10:05 PM   #5
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whats the best pipe set to run at this stage? Also what inserts are you guys running for tight tracks?
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Old 01-30-2009, 02:20 AM   #6
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Don't worry about it unless it starts loading up through the infield. In that case try leaning the bottom instead of the top.
What do you mean "load up" Does that just mean it's to rich on the bottom and spits and gurgles a bit out of the corners
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Old 01-31-2009, 01:36 AM   #7
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Load the carb up with too much fuel and splutters out of the corner. Too rich on bottom.
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