Petcock not working?

[bkrchic]

Have had my bike since Sep 2010, and this was my attempt to see how far I could get on one tank of gas. Filled it up, turned the trip meter to zero and left petcock in the ON position.

Good news: found that my bike went 343kms in town driving before the tank ran dry. Bad news: petcock was in the ON position the entire time. Which is why I had to have someone run out gas to me so that I could get home from work last week.

When the bike wouldn't start, I tried to change the petcock to the reserve position. Let it sit for a bit and tried to turn it on. Then I checked the tank, rocked the bike with the tank open and found that the tank was dry. Isn't this was the reserve setting suppose to prevent?? Ideas/suggestions would be greatly appreciated.

Filled the tank and bike ran fine for 230kms, but now having other issues (see Bike won't stay on)