motor noise

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Old 10-01-2009, 06:10 AM
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Questions?? motor noise

need some help. i just broke in a new motor. using the heat cycle. and it sounds like a popcorn machine. sounds like its poppping all the time. but runs very strong and fast as h------l. i did seal the back plate. it's still running rich. . temps stay under 225.
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Old 10-01-2009, 08:00 AM
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what engine? fuel% glow plug and #
is it a pop from it while its running?
if so does it happen when you hit the throttle,it sound like a pre detonation
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Old 10-01-2009, 02:18 PM
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it's a picco 26 outlaw. using a 0s8 plug and 30% o'DONNELL
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Old 10-01-2009, 06:57 PM
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get a picco,idm or siro plug,
how does the plug look,is it pushed in?
you may have to go up one copper shim
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Old 10-01-2009, 07:10 PM
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the motor has 3 shims now? the plug is good nothing pushed in?
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