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Discussion Starter · #1 ·
Playing around again with another cylinder head. Trail/Dunner/MX porting
 

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Discussion Starter · #4 ·
Thanks...
 

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All I can say is, that if that's a trail port, and you did a drag port on the bike that I just picked up from BBIII. I can only imagine!
 

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Discussion Starter · #6 ·
So your the lucky guy who ended up with BB III wifes quad. Yes you are right you have a drag ported head no doubt.
 

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polished intake huh..........................

i got a chance to look at a stock yfz head the exhaust has some big problems i feel.. i'd like to play with one some day..
 

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Discussion Starter · #15 ·
You think a YFZ head has exhaust problems, look at a trx450r head, intake and exhaust......
 
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