we top off the fuel on 03 scorpa and our 06 monty both running great have to switch to reserve on scorpa after an hour of riding then shes out of fuel within 2 section you, can still see fuel in the line, looks line the carb sit higher than the tank  have to go get more  fuel  to get back home, you can still see the fuel in the monty.  

the scorpa runs out quick maybe an hour worth of riding around if that long not hard riding then switch to reserve maybe last 10 min still see fuel in the line but its a no go

Thanks  one nou will check this weekend