yfz450 spark plug

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May 1, 2005 | 10:30 PM

vinny3299

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Pro Rider

Joined: Jan 2005

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yfz450 spark plug

whats your guys thoughts on a good spark plug for the yfz450 any suggestions... does it make you gain some performance increase as well...

May 1, 2005 | 10:31 PM

yam05yfz

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Joined: Mar 2005

Posts: 15

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yfz450 spark plug

ngk iridium plug thats my preferance

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