Hi everyone, my dad has a Mazda B2600 light truck, and lately it's been having troubles

We jump started it today, and it started but he said it wouldn't rev up, after work I went to his house today and we couldn't get it started at all, is there anywhere I can get the factory service manual online? Or does anyone know what might be the problem??

I read your message. What I think may be wrong is first of all check the alternator bu jumping and take the negitive cable off if it dies then the alternator is not working. If you are having problems reving it up check the compression it may be a craked head. It your coolent level ok? That is where I would start.