I was thinking of buying a Yamaha Blaster 2004, I'm 5'10 and 150 pounds, am I too big for it, if not can anyone tell me what i should do for up keep and any upgrades i could do to it?

 

Check out Blaster Zone They have a pretty cool looking project Blaster on there site. As far as if your too big for one, I would ride one before you buy one. I'm 6'3" and am way too big for one myself. There seems to be a lot of aftermarket parts and hop up kits for them. I hope this helps.