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Plug Gap for Zenoah GT 80 ??

Old 12-01-2017, 08:01 AM
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Check6
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Default Plug Gap for Zenoah GT 80 ??

Anybody know the plug gap for a GT 80?
Thanks,
Fred
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Old 12-01-2017, 10:47 AM
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w8ye
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.5mm or .020" but many people run them at .025"
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Old 12-01-2017, 10:54 AM
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Check6
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Thanks for the reply!!
Fred
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Old 12-01-2017, 10:57 AM
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STUKA BARRY
 
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All my gas engines Zenoah, Fox, 3W, and DLE are all gapped at .022 by the way, the best sparkplug for the GT-80 is the NGK BPMR7A burning 93octane at 32:1 Stilh oil.
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Old 12-01-2017, 03:43 PM
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Some years ago, Ralph Cunningham (Mr. Zenoah in my opinion) recommended using NGK BPMR6F plugs in the GT80 and other Zenoah engines. This is the more compact 5/8" hex plug with a taper seat and it works great in these engines. A much more compact plug than the larger stock plugs. Gapped at .025" or so ..... gap really isn't that critical on our engines.
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