Can't generate enough speed on take-off

[Guest sfgiants]

Ok.I'm not a real pilot. My PMDG 737 isn't going fast enough to take-off. What should my setting be?Tim

[Guest Ray CYYZ]

Most common problem:Weight.After that, *if* using autothrottle, ensure you have valid weight and balance information entered into the FMC or the thrust level caps will potentially prevent the engines from producing enough power.Lastly, if you happen to be up in Tibet somewhere on a very hot day ... ;)Ray