Hey Guys I am new to this forum. I have a 2003 Honda Rincon 650 4×4. When me and my son go riding I have noticed after we have been riding for a while and try to pull a long hill it will struggle to pull the hill. However when he gets off the back it will not have a problem. I’m not real sure what the problem could be but would like to get some input before I take it to the shop and spend a lot of money on it.