I m having problems figure out this the quad.it moves in 2x4 but I can hear gears sounds like they aint engaging all the way when I let off gas. and in 4x4 it doesn't move at all what can this be to me it seems like maybe the clutch or transmission switch

 

Possible plastic roll cage problem in the front gear case.Bad about cracking and causing problems. Item #10.Dirt Cheap Yamaha, Honda, Arctic Cat & Polaris OEM Parts & Accessories – Cycle Parts Warehouse
If you tackle this,you need a good manual.http://gh-ftp.com/ORV%20Manuals/Pola...4%20Magnum.pdf