So I've been lurking here on TT while and finally decided to make an account after picking up a new toy! I pulled the trigger on an 02 YZ426F and couldn't be happier from the initial few rides. The power really really shocked me. I've ridden a fair share of 450s, and the only one I felt had a noticeable power difference was the brand new ktm 450sxf which is incredible (Keep in mind I'm not a great rider, and tend to ride around the farm more than the track). I have a few general questions though... 1.) I can't seem to find the stock gearing for the 02, can anyone fill me in? 2.) I'm coming off of a legendary 96 cr250 which was phenomenal in the woods, this bike should be a bit of a handful but I'm excited about the challenge. My only concern is the overheating - does this bike have a tendency to over heat on 1st/2nd gear trails? 3.) is it possible to swap the spark plug on these bikes without taking off the gas tank? I haven't tried yet but it looks verrry tight in there. Also, the bike has a slight hesitation from low speeds when I crack it. I've read a lot about an off idle bog, but I wouldn't classify this as off idle. Is this normal for this bike? (It is colder here right now and the bike is a touch lean, so it could be that). I wouldn't assume it's normal, but it could just be because I'm coming off a great running responsive 2 stroke. Thanks in advance!