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post #1 of 5 (permalink) Old 12-14-2012, 02:31 PM Thread Starter
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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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post #2 of 5 (permalink) Old 12-15-2012, 12:05 AM
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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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post #3 of 5 (permalink) Old 12-15-2012, 12:20 AM
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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.

2007 Dragon RMK 700 155", 2008 RMK 600 155", 95 Prowler 550 2-up, Really OLD AC Cheetah

http://www.avalanche.org/accidents.php
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post #4 of 5 (permalink) Old 12-16-2012, 08:48 PM Thread Starter
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thanks for the help! might of blew it up if i didnt know that
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post #5 of 5 (permalink) Old 12-16-2012, 08:49 PM Thread Starter
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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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