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octaine level

Old Jul 11, 2001 | 01:42 PM
  #1  
trx250104's Avatar
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Trailblazer
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i have a trx250 1985 nice four wheeler i rebluild the top end i had a 9:1 piston in it i went to a 12:1 what octine should i run in it o ya had a race cam put in it to
 
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Old Jul 11, 2001 | 03:47 PM
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dirt817's Avatar
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I'd try maybe 110-114. that stuff is expensive so use the least octane level possible. If it goes too high you waste money and don't gain any performance.
 
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