What were you riding in ? When I was a kid and lubed the chain with something sticky and rode in sand sprockets would wear out insanely quick. Think grinding compound on your chain and sprockets. Sometimes its better to run a dry chain. I've been running mostly dry. I'm riding in clay soils. Our average speeds are also lower than desert riding.
Funny the front looks new. It gets ~4x the number of revolutions.
That day (yesterday), about 15-20 minutes of deep sand. Mile after mile of it, as I tried to find a way out of the sand wash I entered.
Deep here is 6-8 inches deep, and loose. I tried to follow someone else's track and kept going... I eventually found the way out, and I overcame my fear of deep sand at the same time.
So, my inspection tonite was an eye-opener. Completely worn out chain guide, worn out front *and* rear sprockets, and bad welds on the guide bracket. I'm about $200 into parts and shipping (I'm replacing the OEM guide), and still need to take the swingarm off for the welding. Boy, that last item really has me worked up. I expected *much* better from Yamaha. Even my lowly DRZ400 right next to it has a pro job done on that bracket weld. Boy Oh Boy, would I like to tell Yam an earful.
I run a dry chain lube. No sticky stuff for me...
Edited by mebgardner, October 27, 2014 - 05:32 PM.