For most bikes, the gas flow from the tank is controlled by a petcock located on the underside of the gas tank. Just turn it to the "OFF" position and you should be able to remove it without spilling any gas. Always, check your manual though, because some tanks have cross-overs that run under the frame down-tube or coils mounted to it.
"I am no longer working in the field, but I am still maintaining my paramedic credentials. I enjoyed it, but not sure how much I would have liked working the job in the civilian community (I was in the Army). I liked my civilian ambulance and…"
"I'm fairly eclectic. I like classic rock, such as Journey, Rush, REM, and Heart. I like 80's pop, such as A-ha, Michael Jackson, and Toto. I also like (real) country, like Hank Jr., Merle Haggard, and Willie Nelson. I like southern rock,…"