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Big Bore 440 Kit

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Old Jul 14, 2005 | 05:40 PM
  #1  
djm137's Avatar
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Default Big Bore 440 Kit

I was looking at this kit for my 05 z400. My question is how bad does this affect the reliability of the quad and how often will I have to rebuild? Is it worth the power increase? Thanks for any replies.
 
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Old Jul 16, 2005 | 01:06 PM
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From: Phoenix
Default Big Bore 440 Kit

if its done right it wont hurt the reliabilty of the motor at all. I think it was worth every dollar I spent
its been 2 years and the only thing I had to do was carb work and valve adjustments
 
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Old Jul 20, 2005 | 10:41 AM
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Default Big Bore 440 Kit

Exactly what mucky said if it's done right no worries at all. Who's kit did you have in mind are you going to do anything else?
 
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Old Jul 22, 2005 | 01:01 AM
  #4  
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Default Big Bore 440 Kit

I was thinking athena 434 and doing hd valve springs for reliabilty
 
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