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Old 12-14-2012, 02:31 PM   #1 (permalink)
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should i run br8es?

I have a 1999 rmk 700 and its got a brand new motor it seemd to not have that much power anymore should I run br8es spark plugs instead of br9es?
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Old 12-15-2012, 12:05 AM   #2 (permalink)
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I think the br8es plugs would be too "hot" of a plug. The 8's are usually only used in special applications. The engine may not be broke in yet. New engines are still "tight" and don't make quite as much power as a "broke in" engine.
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Old 12-15-2012, 12:20 AM   #3 (permalink)
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Run the 9's. The heat range number represents the ability of the plug to get rid of heat. Going to a hotter plug doesn't increase power, but it may create a hot spot and cause problems such as pre-ignition. You should always use the plug the engine was designed to run.

Polaris actually specifies a Champion RN2C plug and not the NGK. They are considered comparable, though.
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Old 12-16-2012, 08:48 PM   #4 (permalink)
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thanks for the help! might of blew it up if i didnt know that
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Old 12-16-2012, 08:49 PM   #5 (permalink)
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btw could somone pleas help me out with this! http://www.snowmobileforum.com/polar...keep-snow.html
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