Hi all, this is my first post here so sorry if its in the wrong place. Anyways, I'm 18, 5'11 and weigh about 180 lbs, and I've been riding dirt bikes since i was 6.
I've been riding a 05 kx85 for the past couple of years, with a big wheel conversion and bored 20 over if i remember correctly. Lately I've been looking to upgrade to a kx 250f as i love Kawasaki, until just the other day when i rode one of my riding buddies 06 banshee. All i could say after it was wow, he let me ride it for a good hour or so and it was great at ripping through trails. I'm pretty much set on a banshee, but I've heard from many people that banshees, like to foul plugs, and are generally just pretty rough on trails. With that being said, i understand how to ride a 2 stroke, so that's not the issue here, i just want to know the pros and cons of a banshee vs something like a kx250f and just dirt bikes in general. Any tips? For reference, the banshee I'm looking at has allot of mods: https://pittsburgh.craigslist.org/snw/5588308781.html
and the kx250f is pretty stock: https://pittsburgh.craigslist.org/mcy/5568076535.html
Both have firm prices.

 

2 wheels vs 4 wheels. If you don't mind the increase in size and weight and that you will be more limited on places to ride (width, obstacles), a quad is fine. As far as the Banshee, or any other 2 stoke fouling plugs, that is nonsense. It is all about your pre-mix and jetting. Get that dialed in, and you will have no issues with spark plugs. The KX250 will be much cheaper to maintain/modify...two tires, single cylinder, one shock, two forks, etc. The Banshee being a twin cylinder machine obviously has 2 cylinders, two carbs, two pipes, etc. You also have deal with 4 shocks and 4 tires, so there is definitely much more involved in maintaining a quad. I personally prefer quads. I need the extra training wheels.