Jumpy gears?

Hey everyone, I went and checked out a used 2010 sportsman 850 the other day and when I put it in gear it jumps a bit. Any gear except neutral I believe. What causes this? Is it something to be concerned about? My dad’s 550 doesn’t do that unless I just pushed the throttle in Park or neutral.
Any advice would be awesome.
Also the front axles need replacing, is this a difficult task?
Thanks Guys

Sent from my D6503 using Tapatalk

Jumpy gears?

Hey everyone, I went and checked out a used 2010 sportsman 850 the other day and when I put it in gear it jumps a bit. Any gear except neutral I believe. What causes this? Is it something to be concerned about? My dad’s 550 doesn’t do that unless I just pushed the throttle in Park or neutral.
Any advice would be awesome.
Also the front axles need replacing, is this a difficult task?
Thanks Guys

Sent from my D6503 using Tapatalk