Does Honda cbr 600rr 7/12 Fairing fits on Honda cbr 400rr?

Actually I'm thinking about buying this bike and upgrade its fairing to Honda cbr 600 rr 7/12 model… Did anyone had changed the fairing before and does it fits on 400rr? If yes then can you share me the pictures of it… I'm only asking to those who have done this before. Thank you on advanceDoes Honda cbr 600rr 7 12 Fairing fits on Honda cbr 400rr

1999 Honda 400ex stock headlight diameter?

I'm looking into getting halo led lights on a 400ex but I don't know the diameter of the head lights. I would measure it myself but my bike is at the shop. Can someone measure their headlight for me please. http://m.myled.com/p5535-led-angel-eyes-car-light-6w-480lm-100mm-blue-light-ring-shape-9-30v.html?currency=USD

What does CRF mean on a motorbike?

I'm looking at pitbikes on Welsh pitbike and I have notice they have crf110 or crf50 and I'm wondering what it actually means I looked it up and it just comes up with Honda bikes, is it to do with size?

2001 Yamaha Road Star 1600 with 169,000 miles?

I found one on craigslist in my area for 1600$. At first I thought it was bogus but then I read more and found out that its high in mileage and the carbs need to be cleaned. Cleaning the carb isn't a huge deal for me. On the flip side to this I grew up with Harleys and Yamaha is literally foreign to me. I have heard many stories of both older Yamahas and Honda Goldwings that are well above 200,000 and still running strong. I've heard stories of ones over 300,000. But these are all stories. As much as I do in fact love Harley, once you hit around 50,000 its time to redo the top end. How are these bikes in terms of engine reliability? Is this way above the standard mileage without needing to be repaired? Should I buy it for that low of a price. If the engine would need to be rebuilt, what would be the average cost? If I were to buy it and it still ran good and I did a tune up would I still get alot more miles out of it? And roughly any other info someone can give me. Please do not try to sway me towards another bike, If I was interested in one id be asking about it. I'm debating on buying this one so I'm asking for information on this specific Motorcycle or equivalent Yamaha Motorcycles.

Added (1). The guy says he is the original owner of it. Ill post the ad at the bottom but I don't know how helpful it will be, its in Spanish. My wife read it to me. I was going to drain everything and replace all the fluids and give it a through cleaning before I even try to start it. Like I said the carb needs to be cleaned as well and i'm gonna do that myself I was gonna check the wires too and replace the spark plugs. I'm really worried about engine condition but i can't really check for anything.

Added (2). http://inlandempire.craigslist.org/mcy/4780189564.html

I'm not sure what dirt bike i should get?

So here is the thing:

My family are Australian and live in australia, i live in Wales, I go to Australia every year and always get a dirtbike as i do extreme enduro farm riding and motocross. I have just sold my Yamaha ttr 125l but i think it was a little small and i need more power. I've been looking into the Honda crf 230 and ttr 230, i've riden the honda and it feels great but the think is, its only got an electric start! I really like kickstarts but id like an electric start for backup id i'm tired or am lost out in the bush! Anyway i'm 14 and 5ft7. A 250 is the right amount of power for farm riding but too much for enduro so i have to rule a 250 out and also the 125, what are the other options? Any answers extremely appreciated!
i also own alot of land farms and 3 extreme enduro tracks

Added (1). also has to be a 4 stroke.

Beginners Motorcycle Comparisons?

I've been looking for a first motorcycle and I have four in mind. There's the Yamaha SR400, the Moto Guzzi V7 II (or Stone), the Triumph Bonneville (the cheapest model), and the Honda CTX700N. I want to get one that is brand new. Any suggestions in which buying the right bike for the money and quality?