Re: Losing Weight - On the Xfire that is.
Other ideas:
Remove passenger seat.
Remove radio.
Go with a smaller gas tank (some weight savings) that holds less gas. Gas weighs approx 6lbs/gallon. Only putting in 4 gallons = 24lbs vs the heaviness of 15.9gallons at 95.5lbs.
Remove a/c compressor to reduce drag on engine.
I'm sure there are lots of other ideas.