February Photo Contest - Vote!

I am in the process of puting it back together after replacing the DPS gearbox.
The manual I have states that it will need to be flashed by a dealer. Is this still true?
Also , I have a mystery bolt That I cannot remember where it goes. M6x 70 or so.  Hex head with a flat washer.I will try to attach a pic.
Pic is no go for now....Cox issue I will try again later
TIA

Hello from southeast Georgia. Was gifted a 2000 Yamaha bear tracker with out a carb or battery and looking like it had seen better days. Was told it had sat for about three years. Explained a lot. Put a carb on and a battery in and it started right up. Surprised the heck out of me  Anyhow as stated in my opening I am  78 years old with a very long motorcycle backgground but brand new to atv's. Anyone else out here from Georgia? Would like to meet up with some folks for a ride or two. Looks like a great site. Thanks for having me. 
Don

I just heard Tommie Smothers died, I watched his show in the 60s, it was a great show one of the best. He will be missed, if not for Mom liked you best, then definately for YOYO MAN and his state of YO.

Okay so I bought this 1997 sazuki king quad from a guy and he had it for a few years. 
He had it registered and on the trails last year but he said it bogged and backfired when he would try to drive it. so it sat for a year. 
I bought it for 800 bucks and got it running that night and it ran great for a few days 
But I parked it the other night and went to start it again and it was really hard to fire up and when I did it was bogging and idling high then low again.
So I took the carb out and cleaned it (ended up doing it twice because it was still doing the same thing) 
Now today I have it running slightly better, but it is still like 20% 
I have been looking it up and trying to figure it out but I can't find the issue, has anyone else had this problem? I'll attach a video of it running and giving some throttle 

Hello I appreciate the welcome into the group. I am beyond frustrated with this desperate search for parts. I have a 2013 XY power sports UTV 300. I had a catastrophic failure in my rear differential which resulted in the destruction of almost everything inside. I have located everything I need to completely redo the rear end. But I cannot find a short side axle shaft with six splines etc. it's an offset differential and one shaft is longer than the other and I need the short one. The tip of it broke off (pic). Any help in getting another shaft for this thing would be GREATLY appreciated. Thanks guys