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Need Jetting Help

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Using a JD red needle 5th clip. What difference would I get in performance between a 168 vs. 170 pilot? Thanks for any help.

40-90 degrees

0-3500 feet

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'04 WR450???

The smaller main jet will rev out quicker at the hotter temperatures and higher altitudes.

The #170 would favor cooler temps and give more low-end torque.

James

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