Hello. I have acquired a 2006 AC 650 fairly cheap. (500$) It needed a battery and a cleaning. I noticed that it's missing ALL of its 4wd gear. No axles. No diff. No nothing. It was a Buddy deal so I didn't get to look at it first. IM not familiar with this type of machine and wondered if this was going to be a problem with its weight in getting stuck. Should I just sell the thing and move on. Or ride it the way it is. I have been offered a immaculate 88 moto4 350 for this machine. I had zero idea on what to do. Thanks

 

Whether you need 4WD depends on what you are using the bike for. Trailer towing is difficult with 2WD on even slightly slippery ground, but bike weight does actually help with that. Think about where you feel you may get stuck and try the bike there, taking another rider with you to get you out if you do get stuck. If it performs well, keep it, if it doesn't, swap it for the Yam.