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Old 10-31-2016, 08:27 PM   #21
Enduro Master
Join Date: Jan 2009
Posts: 2,589
dt400eman May possibly Own a  Yamaha Enduro?


Since the yz exhaust port is higher the effective trapped compression(corrected compression ratio) is probably the same as the DT roughly. So putting the YZ head on the DT may throw the stock DT's compression ratio over the top into the detonation zone.
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