As I understand it, the main differences for most motorcycles that have a 49 states and a California version, is that the CA version is usually leaned out jetting wise in order to make emissions standards. ALl of them have a basic collection of CA emissions related hardware like the carbon cannister, and some (like the R6) have other differences like different cam designs.
CA bike was designed to pass CA emissions and has paperwork saying so. That paperwork is important -- for a car, I think it costs $400 to register a 49-state car in CA no matter how clean it burns. Sometimes the difference between a 49 state vehicle and a CA vehicle is just the paperwork. Honda says Goldwing for example meets emissions in all states without any changes to the bike.
My Saturn car is a CA car that I bought in MD (I knew I was moving out here). According to Saturn, the car is the same EXCEPT for the sticker under the hood stating it is a CA car. CA emissions was a $0 option. Other cars are different in CA than other states. Mitsubishi states in their ads that the Galant has 1 or 2 less horsepower in CA than a 49 state car.
Here';s a picture of the emmissions stuff that was removed from an R-6. (It's not mine, but I did find it interesting).
And from the little that I know, here's a few tid-bits:
1) The DEALERS are required to sell the California bikes equipped with all this emmissions stuff. (That's THEIR responsibility)!! But what the end-user does, well...that's on the end-user. But you're LEGALLY supposed to keep it on. (But how can they possibly enforce/check this? You see, there's no smog testing in Caliornia)?
2) Removal of the emmissions stuff will definately lighten your bike by AT LEAST 8 pounds. (And they say that every 6 pounds saved is equivelant to 1 extra horsepower).
3) By removing your emmissions stuff, you will squeeze-out an extra 3 to 5 horsepower. (At least that's what I've heard).
4) You can find someone to do the work of removing the stuff for about $100.00.
5) I'll be removing my CA emmissions stuff this weekend.
I found someone who'll remove my emmissions stuff (and use the Two Bros. plate instead of welding it)...swap-out my front sprocket...and dyno test it for $120.00.
But TECHNICALLY, they're NOT REMOVING the emmissions...they're RE-ROUTING it. (Hey, that's what he told me).
If you know more than this, PLEASE enlighten us!!!
The gas tanks are different, the CA models have a vapor recovery POS that makes them a beatch to fill up, my 929 is a Texas model and the you can see all around the gas tank opening, the CA model has a vapor sleeve. Man I had just forgot about it on my new TL and now this was brought up I am going to be ranting about it again for another month!