I repowerd my boat with a new 2018 Mercury Pro XS 175hp. I did the proper break in and only have 4 hours on the motor. I have tooken the boat out 2 times since the break in and every time after proper warm up after arriving at my first spot the motor idles real high compared to normal. I don't have exact RPM's but it noticeably high and when you shift into gear idle goes back down. After you turn the motor off and fish a while it never does it again. Not sure what's going on
Thanks