Join Date: Dec 2011
Location: Los Angeles, CA
Mentioned: 0 Post(s)
The air in So Cal has cleaned up immensely since the 80's/90s, but i seriously doubt it had anything to do with evaporating gas. More efficient engines and catalytic converters on cars, and emissions controls on industry are far more effective at removing visible pollution than closing up a gas tank vent. As for the California models, not only do we have the fugly evap canister and condenser to deal with, we also get a different tank. There are extra vents and returns for the evap system, and the breather vent and overfill drain lines are in different locations. I'm also fairly certain our gas caps don't have a pressure relief valve, but I don't know if the 49 state models do either. I tried removing my evap system, but the tank would drip fuel from the breather vent when the black tank heated up in the summer sun. I wound up putting it back on to keep from making a mess, but I find it funny that our CA special tree hugger edition tank drips gas, while I don't recall seeing anyone with 49 state model ever complaining about that.
As a side note, while the CA emissions crap they throw on bikes doesn't really have any effect on performance, whatever they do to our cars does. My car has a couple less HP and ft lbs torque compared to a 49 state model, according to the mfr specs.