[kelly w]

My buddy wanted me to ask about his trk smoking white smoke until it warms up.He said it quit after it ran a few minutes and started getting warm.He changed the injectors but it didn't help.He also said that the aneroid(thats what he called it,I don't know if I spelled it right was the air/fuel mixture screw) and it had to be backed all the way off or there was a hard spot in the accelerator.He thinks there is something wrong in the fuel pump. Any body have any idea what might be the problem.Any suggestions or input would be appreciated. Thanks,Kelly. PS- His trk is a 95 model- dually 2 wheel drive, 5 speed trans.