Couple questions about oil/plugs
 

I broght my new quad home today, a '00 Warrior. It hasn;t been ridden in about 1 1/2 years. It runs real good except once in a while it seems like it wants to miss ALOT. Then it will be fine. IT is an intermittent problem. SO I am going to change the plug/oil and spray some carb cleaner in and see if that helps.

What plug do I need to get? and what weight oil should I run...regular 10W-30, and how much does my quad hold? HE didn't have the manual and said he couldn't remember what he put in it. I need the spark plug type incase he has put the wrong one in. Thanks

John