I have a 2017 Kodiak 700 with only 480 miles on it. I bought it last fall with only 300 miles on it. When putting it into Diff-lock the engine runs ruff and sputters when I put it into gear and after I start giving it some gas. If I then stop and move into reverse backup about a foot it's fine, even when I go back into forward High or Low. Regular 4X4 is fine, no issues. Anyone else have this symptom or know why this is?