I may be a little late to this party, since the original post was made in December of last year, but I wanted to throw out an enthusiastic "YES RIDE BAJA!" to counter some of the less-than-encouraging responses this thread has so far received.
Baja is safe. Mexico is a big country and the Baja California peninsula is a looong way (literally and figuratively) from narco hot spots like Ciudad Juarez or the Guerrero/Michoacán state line. I feel safer in most of Baja than I do in most of San Bernardino County. I spend a lot of time riding up and down the peninsula and have yet to be beheaded, raped, robbed, or otherwise harmed. The biggest legitimate danger is riding at night - not because of bandidos, but due to completely unlit and poorly maintained roads and the very real possibility that you will collide with the cattle that like to loiter on the warm pavement of the highway on cold nights. Property theft is a concern, but just as you would do most places in the US, take your valuables with you or secure them in locked saddlebags when you park the bike in town to eat or play tourist. Most hotels have secured courtyard parking or allow you to roll your bike into your room for the night.
Baja is unbelievably beautiful. It's not just a big sandy desert. That narrow strip of land contains high-altitude pine forests, surreal desert vistas, deserted beaches, lush oases, rustic ranches and charming little villages. The sunrises over the Sea of Cortez and sunsets over the Pacific are somehow more spectacular than any we experience here in California.
Baja has killer food. Whether you're gorging yourself on al pastor tacos from a street cart or enjoying freshly-killed seafood under a palapa on the beach, you'd be hard-pressed to find fresher, tastier food anywhere else. But don't drink the water; that old bit of wisdom still holds true. :yow
Baja is full of good people. And bad people. And people who are somewhere in between. Just like the places we all live. If you take the normal precautions you take when travelling anywhere else, you'll have a fine trip. It's helpful to know some basic Spanish phrases, but you can get by with some hacked-up Spanglish and lots of pointing and grunting, as I do. :yes
I'm usually on a dirt bike when I ride Baja, but I have taken my K75 down a couple times (even taken it on some mild dirt roads). Gas isn't a big problem, especially if you're sticking to the highway. In rural areas where there is no Pemex station, someone will be selling gas from jugs along the road or you can scare up some fuel at most any ranch. I've dumped plenty of barrel gas into my bikes over the years and never had a problem. Even our prized BMW's run fine on barrel gas. If you stick to Highway 1, you could even ride a Harley down to Cabo.
Here's my brick loaded up for camping at the entry to San Felipe, BC, off-roading amongst giant cacti, and recovering in front of the Tecate brewery (plus a gratuitous shot of VIP bike parking Baja-style):
