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Old 05-31-2012, 03:34 PM   #14
Jvacustoms
Senior Member
 
Join Date: Jul 2011
Location: Eatonton, GA
Posts: 237
Re: Top speed on gz250

Have been running the bike too lean probably drilled holes and never adjusted the mixture. Might start by checking the plug it will tell you the mixture. If it is lean as i suspect you might shim the needle and replace the main jet.

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