by Mike Lenihan
(Shelbyville, IL)
2018 DF 250 SS with rpm problems.
I am having a problem with the RPM's running high for low speeds. At 5000 rpms the boat is only doing 15mph. They tell me that this should be a at best conditions a 50mph boat. They changed the prop this past week thinking that was the issue. The prop that they put on is a 3 blade 18 degree pitched prop. That didn't help at all with the problem. The top speed that I have ever had this boat was 30mph but that was with the tritoon's rpm's buried past 7000. It instantly killed the motor and I have never tried that speed again. Wonder if anyone could help. Thanks