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Old 10-17-2005 | 10:54 AM
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bob27s
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Default RE: engine runs like crap

ORIGINAL: sparky333

i have a new os 91 fx that has a transition problem and was detonating i have been told that these engines all have bad running habits does anyone have any tips i have a 14x6 prop and a mccoy mc9 plug in it thanks

The MC9 plug is WAYYYYYYYY too cold for this engine. Enya 3, K&B-1L, K&B-4c, OS-F, OS-8 at the coldest.
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