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F4 Spark Plugs

  #1  
Old 10-15-2014, 02:41 AM
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Join Date: Jan 2012
Location: Benoni, Jhb, South Africa
Posts: 13
Default F4 Spark Plugs

The book recommends the use of NGK 9EH-9 plug in the '99 model F4. I have converted this to track bike and am keen to know what would be the best range of plug to use for this purpose?
The 9EH-9 plug is designed for long durability, so I am not sure how it will work out on the track!

Any suggestions?
 
  #2  
Old 10-15-2014, 06:35 PM
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Join Date: Jul 2008
Location: Mesa AZ
Posts: 2,001
Default

Perhaps the F4 forum would know more then the F4i forum but I'd stick with the oem plug. Never heard about it being designed for longevity considering they are replaced every 16,000 miles. Thats a really, really short spark plug life.
 
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