OK i have a 2004 eton yukon cxl 150. It is working good now, after a new chain and other expensive repairs. I want a 250ex however i cant get it for a while due to the repairs. So i need some information about possible upgrades to get for my 150. I am on a 200 dollar budget and have limited knowledge about the engine but im open to all help. My friends have a couple 400ex's a grizzly 350 and other larger quads. Im looking to increase top end speed to hopefully not get completely LEFT. I am smart enough to relaize i can never keep up completely but i just need a higher top end speed because this one will only do 40 and i am getting left. So any upgrade ideas are much appreciated. THANKS!!!