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i have a 03 f7 efi that is totally stock with about 2000 miles on it. when i first got it ran GREAT topping out at about 109. on my last couple rides last year it started running like crap and only getting up to about 85. now that the season is coming up i thought i would start working on it so doing the general maintainence. when i pulled the plugs the throttle side plug perfect but the brake side black as it gets. any suggestions on what it could be and how to fix it would be great
 

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had a problem with the coil on my 03 F7 that made it run like crap and only go about 80 so you might want to check it. If it doesn't feed power to the plug it;ll make the sled run like shit and foul the plug
 
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