Yamaha Ytm 200 rearend problems

[HONDAMAN57]

I have a 1985 Yamaha ytm 200 shaft drive. The other day while riding around I noticed some vibration in the rear end, which made my foot pegs kick. It doesn't do it all the time, but I was wondering if the rear end is going out or the driveshaft?:wondering

[Jmoozy27]

Have you checked the oil in the differential lately?

[HONDAMAN57]

I am going to do that tomorrow. I do a lot of water riding, so im thinking that water could have gotten into the rear end.

[Jmoozy27]

You should check it before and after submerging it. It's kind of the backbone of any shaft drive unit and needs to be properly maintained.