I recently bought a new 2018. Sportsman 450 (has 16 hours on it now). I went out and started it today to keep the battery up and when it started it had a knocking noise. I gave it a little light throttle and it immediately went away. It had never done this before and has not done it again. What does everyone think that could have been. Of course it's under warranty, but I was just curious and didn't want to ride it and mess anything up.
Also, I wanted to ask if it is ok to shift from low to high while riding or moving. I felt that I should not shift from high to low, but didn't know if you could shift from low to high. I am new to atvs and have been coming to a complete stop to do ANY shifting. Thanks much everyone.
Also, I wanted to ask if it is ok to shift from low to high while riding or moving. I felt that I should not shift from high to low, but didn't know if you could shift from low to high. I am new to atvs and have been coming to a complete stop to do ANY shifting. Thanks much everyone.

