Hi - I have an M100-X. It has less than 2000 hours, a 2012 pre-emmissions model, and runs great. I am having issues with the 4wd not coming on. I clutch, turn the switch on, move forward and it still won't engage, The neighbour has one and asked me to go someplace soft, tap the brake, and see if the front wheels turn for a bit (if they do I don't have a mechanical problem). I did that and sure enough they the front wheels turn if I tap the brake lightly... I checked the fuse and it is fine. I will check the switch next (bi-speed doesn't work either), are there any sensors I need to be aware of?