2007 vlx. I recently upgraded to a acme 1235 prop (was 537) and now it seems that my speed is way off. When I used to run 23mph or so, I now need to run at what is reading 27-28mph. Using a gps app on my phone, I can see that I'm really only doing the 23 like I was accustomed to. Has anyone had this happen? Is it because of the new prop with a lower pitch? Do I have to recalibrate my speedo? How do you go about doing that?
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