Overides 2-5 2-4 ect... Means you don't have to use the clutch for those gears. It's used for drag racing not needed for the everyday rider. Not to sure on the duneable. Someone will help u out on that.
The last bike looks better. I don't know if your a noob. But just letting you in on something if you are new. If your gonna buy a used banshee especially one with motor Mods you need to be prepared for when you blow it up. If you don't have money to fix these bikes then don't buy one. I blew mine up last summer. Now I'm dropping $2500 to fix it up nice. So if your a kid with not a lot of money buy a stock motored bike with pipes or a 4 poke.
I wouldn't trade your bike or buy thus thing. Sounds like he doesn't know shit. Only thing he knows is prob what someone told him. It's prob had no maintenance done. Guys a dipshit.
Your gonna need flags. You can buy them before you leave or at most of the towns by the dunes. You need to get a Oregon atv permit. They are $10.50 per bike. I'm sure they sell them at a store by the dunes also. You need to got to rideatvoregon.com and take a test to get your licence to ride which you must carry on you at all times. Everyone in your group will need to take and pass this test and they will mail it to you.
When I had my ported 350 I ran a 13t in front and 43rear. It was set up perfect for me. I am 100 pounds heavier than you so you could get away with bigger front and rear.
Go buy yourself a compression tester. They aren't to expensive. Screw it in where your spark plug goes and kick the bike over till the needle stops moving. If you don't want to buy on you can put your thumb over the spark plug hole on the good and bad side and look for the difference. Might be a broken skirt on piston if compression is low.
When you put your hand where the exhaust comes out of the silencer does it feel the same as the other side such as pressure and heat, when you hit the throttle?
I have ran both and they are both great oils. I am running super techniplate now be cause it has the best of both worlds. 15%Castor for film strength and 80% synthetic for clean burning. Jmo