quadrunner250

i looked and saw on the cap it says 10W40 so ill get some of that. you wouldn't by chance know where the idle screw is. I have check the choke

I have just bought this and don't have any problems but the idle is really high then it is in neutral and i don't know where the idle adjustment is. I would also like to know what kind of oil i should put in this ATV because he gave me a oil filter so i could change the oil and i forgot what oil he told me to use.